HVO Kilauea Status

Recent Kilauea Status Reports, Updates, and Information Releases

HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Thursday, August 27, 2015 9:14 AM HST (Thursday, August 27, 2015 19:14 UTC)


This report on the status of Kilauea volcanic activity was prepared by the USGS Hawaiian Volcano Observatory (HVO). All times are Hawai`i Standard Time.

KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: The lava lake at Kīlauea's summit is still active. Summit tiltmeters recorded a brief deflationary tilt signal overnight. The East Rift Zone lava flow northeast of Puʻu ʻŌʻō is also active, and all breakouts remain within 8 km (5 mi) of the vent. A large breakout occurred from the lava tube on the north side of Puʻu ʻŌʻō overnight, and lava erupted in the bottom of Puʻu ʻŌʻō crater. None of the lava flows currently pose a threat to communities but are being monitored closely. Low levels of seismic activity continue across the volcano.

Summit Observations: Kīlauea's summit inflated through the day yesterday and then switched to deflation overnight. Deflation stopped early this morning, and tilt has been flat since. Seismic tremor continues with episodic bursts associated with spattering on the surface of the summit lava lake, which remains active. This morning, the depth to the surface of the lava lake is about 58 m (190 ft) below the floor of Halemaʻumaʻu. Seismicity within the volcano remains at a low level. An earthquake with a preliminary magnitude of 3.8 occurred at 4:39 AM this morning beneath Kīlauea's south flank. Summit sulfur dioxide emission rates ranged from 2,000 to 2,200 metric tons/day for the week ending August 18.

Puʻu ʻŌʻō Observations: There was no change at Puʻu ʻŌʻō through the day yesterday, but early this morning lava began to erupt from a vent on the northeast side of the crater floor. The flow was still slowly spreading within the crater this morning. Seismic activity remains low. The sulfur dioxide emission rate from all East Rift Zone vents was about 390 tonnes/day when measurements were last possible on August 13, 2015.

June 27th Lava Flow Observations:Webcam views overnight show continued activity on the flow field northeast of Puʻu ʻŌʻō. These flows are active within 8 km (5 mi) of Puʻu ʻŌʻō, and some are marked by smoke plumes where lava is creeping into the forest. At 1 AM, a large breakout occurred on the northeast flank of Puʻu ʻŌʻō from the lava tube supplying the distant flows. This breakout was still feeding a channelized flow to the north this morning. It is too soon to tell how important this breakout is or if it will affect the vigor of the distant flows to the northeast.

_______________________________________________________________________________________________________________________________________

Daily Activity Summary also available by phone: (808) 967-8862

Subscribe to these messages: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Sulfur dioxide emission rate discussion: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207

MORE INFORMATION

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawaii (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
http://volcanoes.usgs.gov/activity/alertsystem/index.php
http://pubs.usgs.gov/fs/2006/3139/

Lava viewing information:
http://hvo.wr.usgs.gov/kilauea_update/viewing.pdf
Hawai`i Volcanoes National Park: http://www.nps.gov/havo/planyourvisit/lava2.htm

HVO Contact: askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Wednesday, August 26, 2015 9:50 AM HST (Wednesday, August 26, 2015 19:50 UTC)


This report on the status of Kilauea volcanic activity was prepared by the USGS Hawaiian Volcano Observatory (HVO). All times are Hawai`i Standard Time.

KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: Kīlauea Volcano continues to erupt at its summit and from its East Rift Zone. Kīlauea summit tiltmeters recorded mostly inflationary tilt over the past day. The East Rift Zone lava flow is active northeast of Puʻu ʻŌʻō, and all breakouts remain within 8 km (5 mi) of the vent. The flow does not currently pose a threat to communities. Low levels of seismic activity continue across the volcano. The summit lava lake is still active.

Summit Observations: Tiltmeters at Kīlauea's recorded steady inflationary tilt over the past day. The summit lava lake remains active. Seismic tremor continues with episodic bursts associated with spattering within the Overlook vent. This morning, the depth to the surface of the lava within the overlook vent is approximately 49.5 m (162 ft) below the floor of Halema`uma`u. Seismicity remains at low levels within the volcano. Summit sulfur dioxide emission rates ranged from 2,000 to 2,200 metric tons/day for the week ending August 18.

Puʻu ʻŌʻō Observations: Webcam views of Puʻu ʻŌʻō during the past day showed no changes in the persistent incandescent crater vents. Seismic activity remains low. The sulfur dioxide emission rate from all East Rift Zone vents was about 390 tonnes/day when measurements were last possible on August 13, 2015.

June 27th Lava Flow Observations:Webcam views overnight show continued activity on the flow field when not obscured by rain and fog. The June 27th lava flow is active, with surface flows scattered in 3 areas northeast and east of Puʻu ʻŌʻō. All active flows are within 8 km (5 mi) of Puʻu ʻŌʻō. Location of the most distant flows are marked by smoke plumes that are produced when lava creeps into the forest and burns the vegetation.

_______________________________________________________________________________________________________________________________________

Daily Activity Summary also available by phone: (808) 967-8862

Subscribe to these messages: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Sulfur dioxide emission rate discussion: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207

MORE INFORMATION

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawaii (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
http://volcanoes.usgs.gov/activity/alertsystem/index.php
http://pubs.usgs.gov/fs/2006/3139/

Lava viewing information:
http://hvo.wr.usgs.gov/kilauea_update/viewing.pdf
Hawai`i Volcanoes National Park: http://www.nps.gov/havo/planyourvisit/lava2.htm

HVO Contact: askHVO@usgs.gov

The Hawaiian Volcano Observatory, located in Hawai`i Volcanoes National Park, is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Tuesday, August 25, 2015 8:55 AM HST (Tuesday, August 25, 2015 18:55 UTC)


This report on the status of Kilauea volcanic activity was prepared by the USGS Hawaiian Volcano Observatory (HVO). All times are Hawai`i Standard Time.

KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: Kīlauea Volcano continues to erupt at its summit and from its East Rift Zone. Tiltmeters at the summit of Kīlauea have recorded no change in tilt. The East Rift Zone lava flow is active northeast of Puʻu ʻŌʻō, and all breakouts remain within 8 km (5 mi) of the vent. The flow does not currently pose a threat to communities. Low levels of seismic activity continue across the volcano. At the summit the lava lake is still active.

Summit Observations: Tiltmeters at Kīlauea's summit have recorded no change in tilt; it is flat. The summit lava lake remains active, seismic tremor continues with episodic bursts associated with spattering within the Overlook vent. The depth to the surface of the lava within the overlook vent is approximately 45 m (148 ft) below the floor of Halema`uma`u at last check, August 21. Seismicity remains at low levels within the volcano. Summit sulfur dioxide emission rates ranged from 2,000 to 2,200 metric tons/day for the week ending August 18.

Puʻu ʻŌʻō Observations: Webcam views of Puʻu ʻŌʻō during the past day showed no changes in the persistent incandescent crater vents. Seismic activity remains low. The sulfur dioxide emission rate from all East Rift Zone vents was about 390 tonnes/day when measurements were last possible on August 13, 2015.

June 27th Lava Flow Observations:Webcam views overnight show continued activity on the flow field. The June 27th lava flow is active, with surface flows scattered in 3 areas northeast and east of Puʻu ʻŌʻō. All active flows are within 8 km (5 mi) of Puʻu ʻŌʻō. Location of the most distant flows are marked by smoke plumes that are produced when lava creeps into the forest and burns the vegetation.

_______________________________________________________________________________________________________________________________________

Daily Activity Summary also available by phone: (808) 967-8862

Subscribe to these messages: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Note about sulfur dioxide emission rate: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207
(Explains how HVO's method of measuring SO2 changed in 2014 and the effects of that change on reported estimates of emission rates.)

MORE INFORMATION

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawaii (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
http://volcanoes.usgs.gov/activity/alertsystem/index.php
http://pubs.usgs.gov/fs/2006/3139/

Lava viewing information:
http://hvo.wr.usgs.gov/kilauea_update/viewing.pdf

HVO Contact: askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Monday, August 24, 2015 8:35 AM HST (Monday, August 24, 2015 18:35 UTC)


This report on the status of Kilauea volcanic activity was prepared by the USGS Hawaiian Volcano Observatory (HVO). All times are Hawai`i Standard Time.

KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: Kīlauea Volcano continues to erupt at its summit and from its East Rift Zone. Tiltmeters at the summit of Kīlauea have recorded an inflationary tilt. The East Rift Zone lava flow is active northeast of Puʻu ʻŌʻō, and all breakouts remain within 8 km (5 mi) of the vent. The flow does not currently pose a threat to communities. Low levels of seismic activity continue across the volcano. At the summit the lava lake is still active.

Summit Observations: Tiltmeters at Kīlauea's summit have recorded inflationary tilt beginning on August 22. The summit lava lake remains active, seismic tremor continues with episodic bursts associated with spattering within the Overlook vent. The depth to the surface of the lava within the overlook vent is approximately 45 m below the floor of Halema`uma`u at last check, August 21. Seismicity remains at low levels within the volcano. Summit sulfur dioxide emission rates ranged from 2,000 to 2,200 metric tons/day for the week ending August 18.

Puʻu ʻŌʻō Observations: Webcam views of Puʻu ʻŌʻō during the past day showed no changes in the persistent incandescent crater vents. Seismic activity remains low. The sulfur dioxide emission rate from all East Rift Zone vents was about 390 tonnes/day when measurements were last possible on August 13, 2015.

June 27th Lava Flow Observations:Webcam views overnight show continued activity on the flow field. The June 27th lava flow is active, with surface flows scattered in 3 areas northeast and east of Puʻu ʻŌʻō. All active flows are within 8 km (5 mi) of Puʻu ʻŌʻō. Location of the most distant flows are marked by smoke plumes that are produced when lava creeps into the forest and burns the vegetation.

_______________________________________________________________________________________________________________________________________

Daily Activity Summary also available by phone: (808) 967-8862

Subscribe to these messages: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Note about sulfur dioxide emission rate: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207
(Explains how HVO's method of measuring SO2 changed in 2014 and the effects of that change on reported estimates of emission rates.)

MORE INFORMATION

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawaii (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
http://volcanoes.usgs.gov/activity/alertsystem/index.php
http://pubs.usgs.gov/fs/2006/3139/

Lava viewing information:
http://hvo.wr.usgs.gov/kilauea_update/viewing.pdf

HVO Contact: askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Sunday, August 23, 2015 8:50 AM HST (Sunday, August 23, 2015 18:50 UTC)


This report on the status of Kilauea volcanic activity was prepared by the USGS Hawaiian Volcano Observatory (HVO). All times are Hawai`i Standard Time.

KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: Kīlauea Volcano continues to erupt at its summit and from its East Rift Zone. Tiltmeters at the summit of Kīlauea have recorded an inflationary tilt. The East Rift Zone lava flow is active northeast of Puʻu ʻŌʻō, and all breakouts remain within 8 km (5 mi) of the vent. The flow does not currently pose a threat to communities. Low levels of seismic activity continue across the volcano. At the summit the lava lake is still active.

Summit Observations: Tiltmeters at Kīlauea's summit have recorded inflationary tilt beginning at 2330 on August 22. The summit lava lake remains active, seismic tremor continues with episodic bursts associated with spattering within the Overlook vent. The depth to the surface of the lava within the overlook vent is approximately 45 m below the floor of Halema`uma`u at last check, August 21. Seismicity remains at low levels within the volcano. Summit sulfur dioxide emission rates ranged from 2,000 to 2,200 metric tons/day for the week ending August 18.

Puʻu ʻŌʻō Observations: Webcam views of Puʻu ʻŌʻō during the past day showed no changes in the persistent incandescent crater vents. Seismic activity remains low. The sulfur dioxide emission rate from all East Rift Zone vents was about 390 tonnes/day when measurements were last possible on August 13, 2015.

June 27th Lava Flow Observations:Webcam views overnight show continued activity on the flow field. The June 27th lava flow is active, with surface flows scattered in 3 areas northeast and east of Puʻu ʻŌʻō. All active flows are within 8 km (5 mi) of Puʻu ʻŌʻō. Location of the most distant flows are marked by smoke plumes that are produced when lava creeps into the forest and burns the vegetation.

_______________________________________________________________________________________________________________________________________

Daily Activity Summary also available by phone: (808) 967-8862

Subscribe to these messages: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Note about sulfur dioxide emission rate: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207
(Explains how HVO's method of measuring SO2 changed in 2014 and the effects of that change on reported estimates of emission rates.)

MORE INFORMATION

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawaii (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
http://volcanoes.usgs.gov/activity/alertsystem/index.php
http://pubs.usgs.gov/fs/2006/3139/

Lava viewing information:
http://hvo.wr.usgs.gov/kilauea_update/viewing.pdf

HVO Contact: askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Saturday, August 22, 2015 8:49 AM HST (Saturday, August 22, 2015 18:49 UTC)


This report on the status of Kilauea volcanic activity was prepared by the USGS Hawaiian Volcano Observatory (HVO). All times are Hawai`i Standard Time.

KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: Kīlauea Volcano continues to erupt at its summit and from its East Rift Zone. Tiltmeters at the summit of Kīlauea have recorded a deflationary tilt. The East Rift Zone lava flow is active northeast of Puʻu ʻŌʻō, and all breakouts remain within 8 km (5 mi) of the vent. The flow does not currently pose a threat to communities. Low levels of seismic activity continue across the volcano. At the summit the lava lake is still active.

Summit Observations: Tiltmeters at Kīlauea's summit have recorded deflationary tilt beginning at 1900 on August 21. The summit lava lake remains active, seismic tremor continues with episodic bursts associated with spattering within the Overlook vent. The depth to the surface of the lava within the overlook vent is approximately 45 m below the floor of Halema`uma`u at last check, August 21. Seismicity remains at low levels within the volcano. Summit sulfur dioxide emission rates ranged from 2,000 to 2,200 metric tons/day for the week ending August 18.

Puʻu ʻŌʻō Observations: Webcam views of Puʻu ʻŌʻō during the past day showed no changes in the persistent incandescent crater vents. Seismic activity remains low. The sulfur dioxide emission rate from all East Rift Zone vents was about 390 tonnes/day when measurements were last possible on August 13, 2015.

June 27th Lava Flow Observations:Webcam views overnight show continued activity on the flow field. The June 27th lava flow is active, with surface flows scattered in 3 areas northeast and east of Puʻu ʻŌʻō. All active flows are within 8 km (5 mi) of Puʻu ʻŌʻō. Location of the most distant flows are marked by smoke plumes that are produced when lava creeps into the forest and burns the vegetation.

_______________________________________________________________________________________________________________________________________

Daily Activity Summary also available by phone: (808) 967-8862

Subscribe to these messages: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Note about sulfur dioxide emission rate: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207
(Explains how HVO's method of measuring SO2 changed in 2014 and the effects of that change on reported estimates of emission rates.)

MORE INFORMATION

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawaii (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
http://volcanoes.usgs.gov/activity/alertsystem/index.php
http://pubs.usgs.gov/fs/2006/3139/

Lava viewing information:
http://hvo.wr.usgs.gov/kilauea_update/viewing.pdf

HVO Contact: askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Friday, August 21, 2015 7:28 AM HST (Friday, August 21, 2015 17:28 UTC)


This report on the status of Kilauea volcanic activity was prepared by the USGS Hawaiian Volcano Observatory (HVO). All times are Hawai`i Standard Time.

KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: Kīlauea Volcano continues to erupt at its summit and from its East Rift Zone. Tiltmeters at the summit of Kīlauea have recorded an inflationary tilt. The East Rift Zone lava flow is active northeast of Puʻu ʻŌʻō, and all breakouts remain within 8 km (5 mi) of the vent. The flow does not currently pose a threat to communities. Low levels of seismic activity continue across the volcano. At the summit the lava lake is still active.

Summit Observations: Tiltmeters at Kīlauea's summit have recorded inflationary tilt beginning on August 19. The summit lava lake remains active, seismic tremor continues with episodic bursts associated with spattering within the Overlook vent. The depth to the surface of the lava within the overlook vent is approximately 58 m below the floor of Halema`uma`u at last check, August 20. Seismicity remains at low levels within the volcano. Summit sulfur dioxide emission rates ranged from 2,000 to 2,200 metric tons/day for the week ending August 18.

Puʻu ʻŌʻō Observations: Webcam views of Puʻu ʻŌʻō during the past day showed no changes in the persistent incandescent crater vents. Seismic activity remains low. The sulfur dioxide emission rate from all East Rift Zone vents was about 390 tonnes/day when measurements were last possible on August 13, 2015.

June 27th Lava Flow Observations: Webcam views overnight show continued activity on the flow field. The June 27th lava flow is active, with surface flows scattered in 3 areas northeast and east of Puʻu ʻŌʻō. All active flows are within 8 km (5 mi) of Puʻu ʻŌʻō. Location of the most distant flows are marked by smoke plumes that are produced when lava creeps into the forest and burns the vegetation.

_______________________________________________________________________________________________________________________________________

Daily Activity Summary also available by phone: (808) 967-8862

Subscribe to these messages: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Note about sulfur dioxide emission rate: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207
(Explains how HVO's method of measuring SO2 changed in 2014 and the effects of that change on reported estimates of emission rates.)

MORE INFORMATION

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawaii (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
http://volcanoes.usgs.gov/activity/alertsystem/index.php
http://pubs.usgs.gov/fs/2006/3139/

Lava viewing information:
http://hvo.wr.usgs.gov/kilauea_update/viewing.pdf

HVO Contact: askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



Update Archive

Older updates can be found using the HVO Alert Archive Search.

New Update Format

For more information about the Volcano Alert Level and Aviation Color Code, please see the U.S. Geological Survey's Alert Notification System for Volcanic Activity Fact Sheet (pdf) or the USGS Volcanic Activity Alert-Notification System web page.