HVO Maps

Maps

November 29, 2016 — Kīlauea


Map of flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field. The area of the active flow field as of November 3 is shown in pink, while widening and advancement of the active flow as of November 29 is shown in red. The new flow branch east of Puʻu ʻŌʻō started from a breakout at the episode 61g vent on November 21. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. The yellow lines (dashed where uncertain) show the mapped trace of lava tubes as determined from aerial thermal imaging and ground mapping.

The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map)

November 13, 2016 — Kīlauea


Satellite image shows no surface breakouts on flow field

This satellite image was captured on Sunday, November 13, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. The image is provided courtesy of NASA's Jet Propulsion Laboratory. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.

In recent weeks there has been little surface activity on the flow field, with lava traveling almost exclusively through the subsurface lava tube from the vent to the Kamokuna ocean entry. Last week a breakout appeared at the base of the pali and was active for several days, but was inactive by this past weekend. This image shows a warm area in the area of last week's breakout, and no signs of other active breakouts on the surface. Bright thermal anomalies are present in Puʻu ʻŌʻō Crater, where a small lava pond is active, as well as at the ocean entry, where streams of lava pour into the ocean. (see large map)

November 3, 2016 — Kīlauea


Map of flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field. The area of the active flow field as of October 19 is shown in pink, while widening and advancement of the active flow as mapped on November 3 is shown in red. There have been no new surface flows and the only change is at the Kamokuna ocean entry. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. The yellow lines show the lava tube system (dashed where poorly located). (see large map)

October 19, 2016 — Kīlauea


Map of flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field. The area of the active flow field as of September 20 is shown in pink, while widening and advancement of the active flow as mapped on October 19 from satellite imagery is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. (see large map)

September 29, 2016 — Kīlauea


Satellite image shows continued breakouts on flow field

This satellite image was captured on Thursday, September 29, by the NASA/USGS Landsat 8 satellite. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.

The image shows that surface breakouts remain active on the coastal plain, about 2 km (1.2 miles) upslope from the Kamokuna ocean entry. A bright thermal anomaly (red pixels) is also present in Puʻu ʻŌʻō Crater, due to a small lava pond. (see large map)

September 20, 2016 — Kīlauea


Map of coastal flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field at the coast. The area of the active flow field as of September 12 is shown in pink, while widening and advancement of the active flow as mapped on September 20 is shown in red. The dashed blue line shows the pre-1983 coastline. The base is a Digital Globe image from January 2016.

Lava deltas – the new land accreted to the front of an older sea cliff – are prone to collapse because the loose underwater lava rubble on which they are built can sometimes become unstable and slide. The interaction of the hot rock composing the delta and cold seawater has led to violent explosions that blasted rocks in all directions, caused local tsunami, and produced billowing plumes of ash and hot, acidic steam.

The dotted line surrounding the Kamokuna lava delta indicates a distance of 300 m (790 ft), which is the maximum documented distance that rocks and spatter have been thrown inland from the older sea cliff by delta explosions that occurred during the Puʻu ʻŌʻō eruption. It is possible that debris could be thrown even farther during exceptionally large explosions. (see large map)

September 12, 2016 — Kīlauea


Map of flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field. The area of the active flow field as of September 1 is shown in pink, while widening and advancement of the active flow as mapped on September 12 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. (see large map)

Map of coastal flow field with thermal overlay

This map includes a georeferenced thermal image mosaic showing the distribution of active and recently active breakouts on the coastal flow field. The thermal mosaic was acquired during a helicopter overflight on September 12. The episode 61g flow field is outlined in yellow to show the extent of the flow. (see large map)

September 8, 2016 — Kīlauea


Satellite image shows new breakout on flow field

This satellite image was captured on Thursday, September 8, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. The image is provided courtesy of NASA's Jet Propulsion Laboratory. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.

Over the past few weeks, lava on the episode 61g flow has been mostly confined to subsurface lava tubes, with little activity on the surface. This image shows that a new surface breakout has appeared near the base of the pali, with lava extending about 1 km (0.6 miles) onto the coastal plain. This breakout is fed by lava breaking out of the lava tube onto the surface. Small amounts of surface lava (red pixels) are also present at the ocean entry, where lava is spilling into the water. (see large map)

September 1, 2016 — Kīlauea


Map of coastal flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field at the coast. The area of the active flow field as of August 19 is shown in pink, while widening and advancement of the active flow as mapped on September 1 is shown in red. The base is a Digital Globe image from January 2016.

Lava deltas – the new land accreted to the front of an older sea cliff – are prone to collapse because the loose underwater lava rubble on which they are built can sometimes become unstable and slide. The interaction of the hot rock composing the delta and cold seawater has led to violent explosions that blasted rocks in all directions, caused local tsunami, and produced billowing plumes of ash and hot, acidic steam.

The dotted line surrounding the Kamokuna lava delta indicates a distance of 300 m (790 ft), which is the maximum documented distance that rocks and spatter have been thrown inland from the older sea cliff by delta explosions that occurred during the Puʻu ʻŌʻō eruption. It is possible that debris could be thrown even farther during exceptionally large explosions. (see large map)

August 19, 2016 — Kīlauea


Map of coastal flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field at the coast. The area of the active flow field as of August 12 is shown in pink, while widening and advancement of the active flow as mapped on August 19 is shown in red. The base is a Digital Globe image from January 2016. (see large map)

August 12, 2016 — Kīlauea


Map of coastal flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field at the coast. The area of the active flow field as of August 2 is shown in pink, while widening and advancement of the active flow as mapped on August 12 is shown in red. The base is a Digital Globe image from January 2016. (see large map)

August 2, 2016 — Kīlauea


Map of flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field. The area of the active flow field as of July 26 is shown in pink, while widening and advancement of the active flow as mapped on August 2 is shown in red. Lava reached the ocean on the morning of July 26. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray.

The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map)

Thermal map of lava flow

This image shows a thermal map of the flow on the coastal plain, created from airborne thermal images. White pixels are hot, and show areas of active surface breakouts. The background image is a satellite image collected before the current lava flow was active.

The thermal map shows scattered pāhoehoe breakouts on the coastal plain, with a narrow lobe of lava crossing the gravel road and extending to the ocean. Over the past week the amount of surface activity near the base of the pali (top of map) has diminished, with most of the activity closer to the coastline. (see large map)

July 29, 2016 — Kīlauea


Thermal map of lava flow

This image shows a thermal map of the flow on the pali and coastal plain, created from airborne thermal images. White pixels are hot, and show areas of active surface breakouts. The background image is a satellite image collected before the current lava flow was active.

The thermal map shows scattered pāhoehoe breakouts on the coastal plain, with a narrow lobe of lava crossing the gravel road and extending to the ocean. The ocean entry has widened since it first formed on Tuesday, July 26, and now spans about 240 m (260 yards) of the coastline. (see large map)

July 26, 2016 — Kīlauea


Map of flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field. The area of the active flow field as of July 19 is shown in pink, while widening and advancement of the active flow as mapped on July 26 is shown in red. Lava reached the ocean on the morning of July 26. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray.

The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map)

Thermal map of lava flow

This image shows a thermal map of the flow on the pali and coastal plain, created from airborne thermal images. White pixels are hot, and show areas of active surface breakouts. The background image is a satellite image collected before the current lava flow was active.

The thermal map shows scattered pāhoehoe breakouts on the coastal plain, with a narrow lobe of lava crossing the gravel road and extending to the ocean. In addition, a narrow lobe was advancing along the western margin of the flow on the coastal plain. (see large map)

July 22, 2016 — Kīlauea


Thermal map of lava flow

This image shows a thermal map of the flow on the pali and coastal plain, created from airborne thermal images. White pixels are hot, and show areas of active surface breakouts. The background image is a satellite image collected before the current lava flow was active.

The thermal map shows minimal activity on the upper pali, with a channelized ʻaʻā flow at the base of the pali. The flow front area had scattered pāhoehoe breakouts, with a narrow lobe of active lava forming the leading tip of the flow. The leading tip of the flow was 730 m (0.45 miles) from the ocean. (see large map)

July 19, 2016 — Kīlauea


Map of flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field. The area of the active flow field as of July 8 is shown in pink, while widening and advancement of the active flow as mapped on July 19 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray.

The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map)

July 15, 2016 — Kīlauea


Large-scale map with thermal overlay showing active flows

This map is a georeferenced thermal image mosaic showing the distribution of active and recently active breakouts on the Pūlama pali and coastal plain. The thermal images were collected during a helicopter overflight on July 15. The episode 61g flow field as mapped on July 8 is outlined in yellow to show how the flow has changed. Most surface flow activity is on the coastal plain, but breakouts also continue on pali. The leading tip of the active flow was 870 m (about half a mile) from the ocean. (see large map)

July 13, 2016 — Kīlauea


Satellite image shows Puʻu ʻŌʻō lava flow

This satellite image was captured on Wednesday, July 13, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. The image is provided courtesy of NASA's Jet Propulsion Laboratory. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.

The image shows that surface breakouts (red pixels) continue to be active on the pali and coastal plain. The flow front remains roughly 900 m (0.6 miles) from the ocean, with little advancement over the past several days. (see large map)

July 12, 2016 — Kīlauea


Thermal map of lava flow

This image shows a thermal map of the flow on the pali and coastal plain, created from airborne thermal images. White pixels are hot, and show areas of active surface breakouts. The background image is a satellite image collected before the current lava flow was active.

The thermal map shows several areas of active breakouts on the pali, in addition to several active areas on the coastal plain. The largest area of activity is on the coastal plain, closer to the base of the pali. The flow front had scattered surface activity but the leading tip of the flow had stalled. (see large map)

July 8, 2016 — Kīlauea


Large-scale map of flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field. The area of the active flow field as of June 30 is shown in pink, while widening and advancement of the active flow as mapped on July 8 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray.

The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map)

July 5, 2016 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow field in relation to the southeastern part of the Island of Hawaiʻi. The area of the active flow field on June 30 is shown in pink, while widening and advancement of the active flow field as mapped on July 5 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray.

The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map)

June 30, 2016 — Kīlauea


Large-scale map of flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field. The area of the active flow field as of June 28 is shown in pink, while widening and advancement of the active flow as mapped on June 30 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. (see large map)

June 28, 2016 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow field in relation to the southeastern part of the Island of Hawaiʻi. The area of the active flow field on June 23 is shown in pink, while widening and advancement of the active flow field as mapped on June 28 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray.

The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map)

Large-scale map of flow field

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field. The area of the active flow field as of June 23 is shown in pink, while widening and advancement of the active flow as mapped on June 28 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. (see large map)

June 27, 2016 — Kīlauea


Satellite image shows Puʻu ʻŌʻō lava flow

This satellite image was captured on Monday, June 27, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. The image is provided courtesy of NASA's Jet Propulsion Laboratory. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.

The image shows continued advancement of the flow towards the southeast. The flow front is progressing down the pali, along the western portion of the abandoned Royal Gardens subdivision and along the eastern boundary of Hawaiʻi Volcanoes National Park. Over the past few days, the flow has moved at a rate of about 300 meters per day (0.2 miles per day) - an increase over the rate last week and likely due to the steeper slope on the pali. (see large map)

June 23, 2016 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow field in relation to the southeastern part of the Island of Hawaiʻi. The area of the active flow field on June 16 is shown in pink, while widening and advancement of the active flow field as mapped on June 23 is shown in red. The area covered by the inactive June 27th flow is shown in orange. The Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray.

The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 1983 10-m digital elevation model (DEM). (see large map)

Large-scale map of flow field

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The areas covered by the recent breakouts at Puʻu ʻŌʻō as of June 16 are shown in pink, while widening and advancement of the active flow as mapped on June 23 is shown in red. The area covered by the inactive June 27th flow is shown in orange. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. (see large map)

June 21, 2016 — Kīlauea


Satellite image shows Puʻu ʻŌʻō lava flow

This satellite image was captured on June 21 by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. The image is provided courtesy of NASA's Jet Propulsion Laboratory. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.

The image shows continued advancement of the flow towards the southeast. Active surface breakouts, shown by red pixels, are limited to the area of the flow front. Lava tubes beneath the surface supply lava to these breakouts from the vent. (see large map)

June 16, 2016 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow field in relation to the southeastern part of the Island of Hawaiʻi. The area of the active flow field on June 10 is shown in pink, while widening and advancement of the active flow field as mapped on June 16 is shown in red. The area covered by the inactive June 27th flow is shown in orange. The Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray.

The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 1983 10-m digital elevation model (DEM). (see large map)

Large-scale map of flow field

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The areas covered by the recent breakouts at Puʻu ʻŌʻō as of June 10 are shown in pink, while widening and advancement of the active flow as mapped on June 16 is shown in red. The inactive June 27th flow is shown in orange. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. (see large map)

June 10, 2016 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow field in relation to the southeastern part of the Island of Hawaiʻi. The area of the active flow field on June 8 is shown in pink, while widening and advancement of the flow field as mapped on June 10 is shown in red. The area covered by the June 27th flow (now inactive) as of June 2 is shown in orange. The Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. (see large map)

Large-scale map of flow field

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area covered by the June 27th flow (now inactive) as of June 2 is shown in orange. The areas covered by the recent breakouts at Puʻu ʻŌʻō as of June 8 are shown in pink, while widening and advancement of the active flow as mapped on June 10 is shown in red. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. (see large map)

June 9, 2016 — Kīlauea


Large-scale map of flow field

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area covered by the June 27th flow (which may be inactive) as of June 2 is shown in orange. The areas covered by the recent breakouts at Puʻu ʻŌʻō as of June 2 are shown in pink, while widening and advancement of the new breakouts as mapped on June 8 is shown in red. The northern breakout is inactive. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. Puʻu ʻŌʻō is at lower left. (see large map)

June 2, 2016 — Kīlauea


Large-scale map of flow field

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area covered by the June 27th flow as of June 2 is shown in orange. The areas covered by the new breakouts at Puʻu ʻŌʻō as of May 26 are shown in pink, while widening and advancement of the new breakouts as mapped on June 2 is shown in red. The yellow lines show the mapped portion of the lava tube system for the June 27th flow, which is still active in scattered areas within about 5.4 km (3.4 mi) to the northeast of Puʻu ʻŌʻō (not shown). Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. Puʻu ʻŌʻō is at lower left.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 1983 10-m digital elevation model (DEM). (see large map)

May 25, 2016 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow field in relation to the eastern part of the Island of Hawaiʻi. The new breakouts from Puʻu ʻŌʻō that began on May 24 are shown in red, as mapped on May 25. The area of the original June 27th lava flow field is shown in pink, as last mapped in detail on May 9. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The black box shows the extent of the accompanying large scale map.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over a 1983 10-m digital elevation model (DEM). The bathymetry is also from NOAA. (see large map)

Large-scale map of flow field

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The new breakouts from Puʻu ʻŌʻō that began on May 24 are shown in red, as mapped on May 25. The area of the original June 27th lava flow field is shown in pink, as last mapped in detail on May 9. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. Puʻu ʻŌʻō is at lower left.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 1983 10-m digital elevation model (DEM). (see large map)

May 24, 2016 — Kīlauea


Map of new breakouts at Puʻu ʻŌʻō

This map of two new breakouts at Puʻu ʻŌʻō, which began just before 7:00 a.m., HST, this morning, shows the extent of the lava flows based on aerial photos that were taken at 8:30 a.m. At the time, the larger flow from the northern breakout was traveling down the north flank of Puʻu ʻŌʻō, towards the northwest, and was about 1 km (0.6 miles) long, and the flow from the eastern breakout was about 700 meters (0.4 miles) long. The aerial photos used to map the flows are shown over an older satellite image. The new breakouts had not extended beyond the boundary of the Puʻu ʻŌʻō flow field at the time the photos were taken, and neither lava flow currently poses an immediate threat to nearby communities. (see large map)

May 9, 2016 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow field in relation to the eastern part of the Island of Hawaiʻi. The area of the flow field on March 25 is shown in pink, while widening and advancement of the flow field as mapped on May 9 is shown in red. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The black box shows the extent of the accompanying large scale map.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over a 1983 10-m digital elevation model (DEM). The bathymetry is also from NOAA.

Because the flow field is changing very little at the moment, mapping of the lava flow is being conducted relatively infrequently. We will return to more frequent mapping if warranted by an increase in activity. (see large map)

Large-scale map of flow field

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow field on March 25 is shown in pink, while widening and advancement of the flow field as mapped on May 9 is shown in red. The yellow lines show the mapped portion of the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. Puʻu ʻŌʻō is at lower left.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 1983 10-m digital elevation model (DEM). (see large map)

March 25, 2016 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow field in relation to the eastern part of the Island of Hawaiʻi. The area of the flow field on February 20 is shown in pink, while widening and advancement of the flow field as mapped on March 25 is shown in red. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The black box shows the extent of the accompanying large scale maps.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate potential flow paths. The base map is a partly transparent regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over a 1983 10-m digital elevation model (DEM). The bathymetry is also from NOAA.

Because the flow field is changing very little at the moment, mapping of the lava flow is being conducted relatively infrequently. We will return to more frequent mapping if warranted by an increase in activity. (see large map)

Large-scale map of flow field

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow field on February 20 is shown in pink, while widening and advancement of the flow field as mapped on March 25 is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. Puʻu ʻŌʻō is at lower left.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate potential flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 1983 10-m digital elevation model (DEM). (see large map)

Large-scale map with thermal overlay showing active flows

This map overlays a georeferenced thermal image mosaic onto the current map of the flow field near Puʻu ʻŌʻō to show the distribution of active and recently active breakouts. The thermal images were collected during a helicopter overflight on March 25. The June 27th flow field as of March 25 is outlined in green for comparison. The yellow lines show the active lava tube system, as currently mapped. Puʻu ʻŌʻō is at lower left. (see large map)

March 2, 2016 — Kīlauea


Satellite image shows June 27th lava flow

This satellite image was captured on March 2 by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. The image is provided courtesy of NASA's Jet Propulsion Laboratory. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds. Black lines are roads.

The image shows that scattered breakouts remain active northeast of Puʻu ʻŌʻō. Many of these breakouts are active along the northern flow field margin, at the forest boundary. A small portion of these flows at the forest boundary have migrated north, slightly closer to subdivisions. The overall ground slope, however, is towards the northeast, and other recent flows that have been active in this area have all eventually migrated along the direction of the arrow on the map - maintaining a safe distance from the subdivisions towards the north.

A bright thermal anomaly in Puʻu ʻŌʻō Crater results from an active flow that was covering the crater floor at the time of the satellite overpass. (see large map)

February 12, 2016 — Kīlauea


Large-scale map of flow field

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow field on January 19 is shown in pink, while widening and advancement of the flow field as mapped on February 12 is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. Puʻu ʻŌʻō is at lower left.

The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 1983 10-m digital elevation model (DEM). (see large map)

Large-scale map with thermal overlay showing active flows

This map overlays a georeferenced thermal image mosaic onto a map of the flow field near Puʻu ʻŌʻō to show the distribution of active and recently active breakouts. The thermal images were collected during a helicopter overflight on February 12. The June 27th flow field as mapped on January 19 is outlined in green for comparison. The yellow lines show the active lava tube system, as currently mapped. Puʻu ʻŌʻō is at lower left. (see large map)

January 19, 2016 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow field in relation to the eastern part of the Island of Hawaiʻi. The area of the flow field on January 5 is shown in pink, while widening and advancement of the flow field as mapped on January 19 is shown in red. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The black box shows the extent of the accompanying large scale maps.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over a 1983 10-m digital elevation model (DEM). The bathymetry is also from NOAA.

Because the flow field is changing very little at the moment, mapping of the lava flow is being conducted relatively infrequently. We will return to more frequent mapping if warranted by an increase in activity. (see large map)

Large-scale map of flow field

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow field on January 5 is shown in pink, while widening and advancement of the flow field as mapped on January 19 is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray.

The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 1983 10-m digital elevation model (DEM). (see large map)

Large-scale map with thermal overlay showing active flows

This map overlays a georeferenced thermal image mosaic onto a map of the flow field near Puʻu ʻŌʻō to show the distribution of active and recently active breakouts. The thermal images were collected during a helicopter overflight on January 19. The June 27th flow field as mapped on January 5 is outlined in green for comparison. The yellow lines show the active lava tube system, as currently mapped. (see large map)

January 10, 2016 — Kīlauea


Satellite image shows June 27th lava flow

This satellite image was captured on Sunday, January 10, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. The image is provided courtesy of NASA's Jet Propulsion Laboratory. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.

The image shows that scattered breakouts continue to be active northeast of Puʻu ʻŌʻō. The farthest active lava in this image is 5.8 km (3.6 miles) northeast of Puʻu ʻŌʻō. (see large map)

January 7, 2016 — Kīlauea


Satellite image shows June 27th lava flow

This satellite image was captured on Thursday, January 7, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. The image is provided courtesy of NASA's Jet Propulsion Laboratory. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.

The image shows that scattered breakouts continue to be active northeast of Puʻu ʻŌʻō, with no overall advancement in recent months. The farthest active lava was 5.6 km (3.5 miles) northeast of the vent on Puʻu ʻŌʻō. (see large map)

January 5, 2016 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawaiʻi. The area of the flow field on December 3 is shown in pink, while widening and advancement of the flow field as mapped on January 5 is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The black box shows the extent of the accompanying large scale map.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over the 1983 DEM. The bathymetry is also from NOAA.

Because the flow field is changing very little at the moment, mapping of the lava flow is being conducted relatively infrequently. We will return to more frequent mapping if warranted by an increase in activity. (see large map)

Map showing flow field changes

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow field on December 3 is shown in pink, while widening and advancement of the flow field as mapped on January 5 is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray.

The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 10-m digital elevation model (DEM). (see large map)

December 30, 2015 — Kīlauea


Map with thermal overlay showing active flows

This map overlays a georeferenced thermal image mosaic onto a map of the flow field near Puʻu ʻŌʻō; to show the distribution of active and recently active breakouts. The thermal images were collected during a helicopter overflight on December 30. The June 27th flow is outlined in green to highlight the previously mapped flow margin. The yellow lines show the active lava tube system, as currently mapped. Puʻu ʻŌʻō is at lower left. (see large map)

December 3, 2015 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawaiʻi. The area of the flow on November 12 is shown in pink, while widening and advancement of the flow as mapped on December 3 is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The black box shows the extent of the accompanying large scale map.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over the 1983 DEM. The bathymetry is also from NOAA.

Because the flow field is changing very little at the moment, mapping of the lava flow is being conducted relatively infrequently. We will return to more frequent mapping if warranted by an increase in activity. (see large map)

Map showing flow field changes

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow on November 12 is shown in pink, while widening and advancement of the flow as mapped on December 3 is shown in red. Changes shown at near the east edge of the map extent reflect updated ground mapping, not new flows. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray.

The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 10-m digital elevation model (DEM). (see large map)

November 30, 2015 — Kīlauea


Satellite image shows June 27th lava flow

This satellite image was captured on Monday, November 30, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. The image is provided courtesy of NASA's Jet Propulsion Laboratory. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.

The image shows that scattered breakouts continue to be active northeast of Puʻu ʻŌʻō in two main areas. First, small scattered breakouts are active as far as 5.8 km (3.6 miles) from the vent on Puʻu ʻŌʻō, continuing the activity we have seen over the past several months. Second, the breakout that began on November 25 continues to be active, but this breakout is still relatively minor and extends no farther than 2 km (1.2 miles) from Puʻu ʻŌʻō. (see large map)

November 12, 2015 — Kīlauea


Map showing flow field changes

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow on October 23 is shown in pink, while widening and advancement of the flow as mapped on November 12 is shown in red. Not all changes at the northern edge of the flow in the forest were mapped due to poor weather and visibility. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray.

The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 10-m digital elevation model (DEM). (see large map)

Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawaiʻi. The area of the flow on October 23 is shown in pink, while widening and advancement of the flow as mapped on November 12 is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The black box shows the extent of the accompanying large scale map.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over the 1983 DEM. The bathymetry is also from NOAA.

Because the flow field is changing very little at the moment, mapping of the lava flow is being conducted relatively infrequently. We will return to more frequent mapping if warranted by an increase in activity. (see large map)

October 23, 2015 — Kīlauea


Map showing flow field changes

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow on September 30 is shown in pink, while widening and advancement of the flow as of October 23 (based on satellite imagery and ground mapping) is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray.

The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 10-m digital elevation model (DEM). (see large map)

Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawaiʻi. The area of the flow on September 30 is shown in pink, while widening and advancement of the flow as of October 23 is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The black box shows the extent of the accompanying large scale map.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over the 1983 DEM. The bathymetry is also from NOAA.

Because the flow field is changing very little at the moment, mapping of the lava flow is being conducted relatively infrequently. We will return to more frequent mapping if warranted by an increase in activity. (see large map)

October 13, 2015 — Kīlauea


Landsat satellite image shows June 27th lava flow

This satellite image was captured on Tuesday, October 13, 2015 by the Landsat 8 satellite. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.

The lava flow field is partly obscured by clouds, but the image shows much of the activity on the June 27th flow. Active breakouts are scattered over a wide area northeast of Puʻu ʻŌʻō, with the farthest active lava about 6.3 km (3.9 miles) from the vent on Puʻu ʻŌʻō. (see large map)

September 30, 2015 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawaiʻi. The area of the flow on September 11 is shown in pink, while widening and advancement of the flow as of September 30 is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The black box shows the extent of the accompanying large scale map.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over the 1983 DEM. The bathymetry is also from NOAA.

Because the flow field is changing very little at the moment, mapping of the lava flow is being conducted relatively infrequently. We will return to more frequent mapping if warranted by an increase in activity. (see large map)

Map showing flow field changes

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow on September 11 is shown in pink, while widening and advancement of the flow as of September 30 (based on satellite imagery) is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray.

The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 10-m digital elevation model (DEM). (see large map)

September 11, 2015 — Kīlauea


Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawaiʻi. The area of the flow on August 26 is shown in pink, while widening and advancement of the flow as of September 11 is shown in red. The yellow lines show the active lava tube system. The black box shows the extent of the accompanying large scale map.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The base map is a partly transparent regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over the 1983 DEM. The bathymetry is also from NOAA.

Because the flow field is changing very little at the moment, mapping of the lava flow is being conducted relatively infrequently. We will return to more frequent mapping if warranted by an increase in activity. (see large map)

Large-scale map with thermal mosaic overlay

This map overlays a georeferenced thermal image mosaic onto a map of the flow field to show the distribution of active and recently active breakouts. The thermal images were collected during a helicopter overflight of the flow field on September 11. The June 27th flow is outlined in green to highlight the current flow margin. The yellow lines show the active lava tube system. (see large map)

September 2, 2015 — Kīlauea


Satellite image shows June 27th lava flow

This satellite image was captured on Wednesday, September 2, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. The image is provided courtesy of NASA's Jet Propulsion Laboratory. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of very high temperatures and show active lava. White areas are clouds.

The image shows that scattered breakouts continue to be active northeast of Puʻu ʻŌʻō. The farthest active lava in this image is 7.5 km (4.7 miles) northeast of Puʻu ʻŌʻō. (see large map)

May 7, 2012 — Kīlauea


Kīlauea Summit Area Map

Map of the summit area of Kīlauea showing the location of the Halemaʻumaʻu Overlook vent, and road and trail closures in response to the eruption. Kīlauea's caldera is located within Hawaiʻi Volcanoes National Park. (see large map)