HVO Photos & Video

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September 1, 2014 — Kīlauea


June 27th lava flow continues advancing eastward, with lava plunging into another ground crack

This wide view, looking west, shows the position of the June 27th flow front relative to the nearby Kaohe Homesteads subdivision. The front of the flow is moving through thick forest, and its position can be seen by the plumes of smoke above the center of the photograph. Near these active surface flows, there was also steaming from a ground crack, resulting from lava deep in the crack. The farthest point of this steaming was 1.7 km (1.1 miles) west of the boundary of the Kaohe Homesteads subdivision.

The June 27th lava flow remains active at its leading edge, where lava is spreading out slowly into thick forest and also plunging into one of the many deep ground cracks that form Kīlauea's East Rift Zone. This Quicktime video shows the activity near the eastern edge of the flow. This swiftly moving stream of lava was about 2 meters (yards) wide, and was visible down to about 30 meters (100 feet) depth in the crack, where it disappeared from view.

The Quicktime video begins with a view of the steaming ground crack, where lava is moving deep within the crack. As the view rotates west, lava can be seen on the surface burning thick forest. Finally, the camera focuses on the eastern edge of the flow, where lava is plunging into the deep ground crack. This swiftly moving stream of lava was about 2 meters (yards) wide, and was visible down to about 30 meters (100 feet) depth in the crack, where it disappeared from view.

Left: Surface flows at the front of the June 27th flow continue slowly moving through thick forest, creating scattered brush fires. This view looks south, and the cone of Heiheiahulu is in the upper left. Right: Extending slightly beyond the lava flows on the surface, a steaming ground crack indicates that lava is continuing to move beneath the surface. The front of the surface flows is just above and to the right of the center point of the photograph, and the steaming ground crack runs along the vertical center line of the photograph. Puʻu ʻŌʻō can be seen on the horizon in the upper left.

Left: Near the leading edge of the lava on the surface, there was a swiftly moving stream of lava pouring into a deep ground crack (see Quicktime videos above). Puʻu ʻŌʻō is at the top of the photograph. Right: A closer look at the stream of lava pouring into the deep ground crack. See Quicktime videos above.

August 29, 2014 — Kīlauea


Far end of June 27th lava flow reactivates, lava spills out of steaming crack

The steaming ground crack observed yesterday suggested that lava was close to the surface within the crack, and today lava in the crack reached the surface and began spilling out into the thick forest. The leading edge of the lava today was near the abandoned well site (cleared area at left). This farthest lava was about 11.9 km (7.4 miles) from the vent on Puʻu ʻŌʻō (visible on horizon) and 2.6 km (1.6 miles) from the eastern boundary of the Wao Kele o Puna forest reserve.

A closer view of the pad of lava that emerged from the ground crack earlier this week, which had renewed surface flows today. At the east end (upper left in photograph) of the lava pad new breakouts spilled into adjacent ground cracks, and lava was visible within the ground crack extending farther to the east (visible by line of smoke extending towards upper left portion of photo). Heiheiahulu is visible in the upper right.

Left: A wide view of the leading edge of the June 27th lava flow, looking east down Kīlauea's East Rift Zone. The main body of the June 27th flow ends near the center of the photograph, where lava poured into a deep ground crack. After traveling along the ground crack, lava emerged at the surface earlier this week, creating an isolated pad of lava (where the thick smoke is just above the center of the photograph). This pad of lava had renewed surface activity today, with lava filling and spilling out of a ground crack extending farther to the east of the lava pad. Right: Another wide view of the leading edge of the June 27th lava flow, again looking east. This shows the east end of the isolated lava pad. The thick smoke originates from lava filling a deep ground crack up to the surface. The smoke partly obscures the abandoned well site.

At the site of the isolated pad of lava near the leading edge of the June 27th flow, renewed surface flows today resurfaced the existing lava flow and also spilled into nearby ground cracks. In this photograph, two large streams of lava plunge into a crack that is a couple meters (yards) wide.

At the far end of the lava-filled crack, lava spilled out towards the north a very short distance. In this view from a thermal camera, the small lobe of lava moving north is easily visible. The trees surrounding the crack show brighter colors as they are heated by the lava flow, but not to the point of combustion.

The vent for the June 27th lava flow is on the upper northeast flank of Puʻu ʻŌʻō. The vent area is now covered by lava, but the lava tube that carries lava to the flow front is easily visible by the line of blue-colored fume. In the lower right, two skylights can be seen.

August 28, 2014 — Kīlauea


Steaming extends northeast along ground crack, suggesting lava is advancing again along the crack

Steaming (center of photograph) was reported this morning east of the small pad of lava (just above center) that emerged from a ground crack this past week. This renewed progression of steaming suggests that lava is again continuing to advance beneath the surface, along these ground cracks. On our afternoon overflight, the farthest point of steaming was near an abandoned well site, which serves as a convenient landmark in this broad expanse of forest. The farthest steaming was 11.9 km (7.4 miles) northeast of the vent on Puʻu ʻŌʻō, and 2.6 km (1.6 miles) from the eastern boundary of the Wao Kele o Puna forest reserve. In the top portion of the photograph, numerous plumes of smoke originate from scattered surface flows burning vegetation. Puʻu ʻŌʻō can be seen on the horizon.

This figure compares the photo above with an equivalent view from a thermal camera. The plumes of smoke mark the farthest active lava on the surface (small, scattered lobes of pāhoehoe), which are also shown as small hotspots in the thermal image. The pad of lava that emerged from the ground crack earlier this week was inactive at the surface but still quite warm (high temperature patch in center of image). East of this pad of lava, steaming (just below the center of the photograph) has appeared over the past day, suggesting that lava is continuing to advance below the surface along a ground crack. Direct views into the crack were not possible due to thick vegetation, but close views of the steaming areas with the thermal camera reveal temperatures up to 190 C (370 F). These high temperature are further evidence of lava moving through the crack.

A closer of the new steaming. The thick vegetation obscures direct views of the ground crack, and only a line of steaming and browned vegetation is evident at the surface.

Slow-moving pāhoehoe advances through thick forest northeast of Puʻu ʻŌʻō. The pāhoehoe lobes surround, and burn through, the base of the trees. By the time the trees topple over, the lava surface temperature has cooled sufficiently that the downed trees do not completely burn through, leaving a field of tree trunks on the recent lava surface. One tree in the center of the photograph is completely surrounded by active lava, and likely on the brink of toppling over.

Left: Another view of the lava expanding into the forest. Right: Closer to the vent on Puʻu ʻŌʻō, one of several skylights provides a view of the flowing lava stream within the lava tube. This lava tube supplies lava from the vent to the active surface flows near the flow front.

August 27, 2014 — Kīlauea


Activity at flow front appears to stall but surface flows remain active behind flow front

The June 27th flow remains active, but surface flows at the very farthest reaches of the flow appear to have stalled today. The lava flow front consisted of an isolated pad of lava that emerged from a deep ground crack several days ago. Today, this pad of lava appeared inactive at the surface, with no sign obvious activity in the adjacent crack. On today's overflight, the farthest active surface flows were on the main body of the June 27th flow, and were 8.5 km (5.3 miles) from the vent on Puʻu ʻŌʻō, or about 6 km (3.7 miles) from the eastern boundary of the Wao Kele o Puna forest reserve.

A closer view of the southern lobe of the June 27th lava flow. Smoke plumes originate from active surface breakouts, the farthest today reached 8.5 km (5.3 miles) from the vent on Puʻu ʻŌʻō. The spot at which this lobe plunged into a deep ground crack last week can be seen near the bottom of the photograph. In the upper right portion of the photograph, smoke originating from active breakouts on the northern lobe can be seen.

A comparison of the normal photograph (see above) of the south lobe of the June 27th flow with an equivalent view from the thermal camera. The thermal camera clearly shows the extent of the farthest active breakout, which was relatively small.

Left: Another view of the south lobe of the June 27th flow, which plunged into a deep ground crack last week (this spot is visible at the right side of the photograph). This wide view, looking west, also shows another deep crack nearby, a short distance to the south of the active flows (which are producing the smoke plumes). This immediate area contains many ground cracks, which are part of Kīlauea's East Rift Zone. Puʻu ʻŌʻō can be seen in the distance. Right: The isolated pad of lava that emerged from the deep ground crack several days ago did not have any active breakouts at the surface today, but incandescent lava could be seen in numerous cracks on the surface. This likely represents lava that had ponded within the flow and remains hot, but immobile.

August 25, 2014 — Kīlauea


Lava resurfaces along crack, continues advancing through thick forest

The leading edge of the June 27th lava flow plunged into a deep crack on Kīlauea's East Rift Zone last week, and lava within the crack remained hidden for several days. Over the past day, lava returned to the surface at a point slightly farther along the crack, creating a small island of lava surrounded by thick forest. The farthest tip of the flow today was 11.4 km (7.1 miles) northeast of the vent on Puʻu ʻŌʻō, and 3.1 km (1.9 miles) from the eastern boundary of the Wao Kele o Puna forest reserve.

Left: A view of the small pad of lava that has emerged from the crack over the past day. The lava pad was about 800 m (0.5 miles) long, and was about 1.3 km (0.8 miles) east of the point where lava plunged into the crack. Right: Another view of the isolated pad of lava that has emerged from the crack. This view is towards the east, along the East Rift Zone. The spot at which lava flowed into the crack is to the west, out of view beyond the bottom of the photograph.

View of the pad of lava with the equivalent view from a thermal camera.

Puʻu ʻŌʻō crater remains partly obscured by thick fume. In particular, the northeastern portion of the crater (bottom left part of image) has recently been entirely obscured to the naked eye, but the thermal camera provides a clear view through the fume, revealing a small lava pond.

August 22, 2014 — Kīlauea


June 27th lava flow continues advancing northeast, with a portion entering a deep crack

This image shows a broad overview of activity at the front of the June 27th lava flow. Steaming in the lower-center portion of the photograph issues from a crack on the East Rift Zone. A portion of the lava flow has entered this crack, and the steaming extends out 1.4 km (0.9 miles) from the visible flow margin at the surface. Presumably, this steaming results from groundwater heated by lava deep within the crack. In the upper-right part of the image, a smoke plume originates from a more northerly lobe that is advancing through thick forest, triggering small brush fires. The vent for the June 27th lava flow is on Puʻu ʻŌʻō, the cone in the upper left part of the photo.

This Quicktime movie shows the southern front of the June 27th lava flow from Puʻu ʻŌʻō. Lava here has flowed into a deep crack on Kīlauea's East Rift Zone. The line of steam extending out from the visible flow margin at the surface is inferred to be caused by lava deep within the crack. This video also shows the lava stream beneath the flow surface, supplied by a lava tube, plunging into the crack.

Left: Looking west, this photo shows the far end of the steaming that extends out beyond the visible flow margin at the surface. Right: A closer look at one of the steam sources. The crack from which steam is issuing is not visible through the thick vegetation.

Left: A view looking east, near the front of the southern lobe that has entered the crack. Lava is inferred to be present in the deep crack beyond the visible margin of the flow, based on the line of steam sources as well as a vigorous cascade of lava seen in a skylight in the bottom portion of the photo. Right: A closer look at the lava stream plunging into the crack. The lava is fed from the vent on Puʻu ʻŌʻō via a lava tube.

North of where lava is entering the crack, another lobe is pushing through thick forest, triggering small brush fires. The source of the smoke marks the front of this lobe, and Puʻu ʻŌʻō can be seen just above this spot.

Puʻu ʻŌʻō crater remains partly obscured by thick fume. The thermal camera today revealed that several lava ponds persist in their usual locations in the northeast and southeast portions of the crater floor.

August 14, 2014 — Kīlauea


June 27 lava flow remains active in forest northeast of Puʻu ʻŌʻō

The June 27 lava flow remains active as a narrow lobe pushing through thick forest northeast of Puʻu ʻŌʻō, triggering small brush fires. This view is to the east, with the forested cone of Heiheiahulu partly obscured by the smoke plume from this angle. The flow front today was 8.7 km (5.4 miles) northeast of the vent on Puʻu ʻŌʻō.

Left: The surface flows active at the front of the June 27 lava flow are fed from lava flowing through a lava tube. This collapse of a portion of the roof has produced a skylight, and a direct view of the fluid lava stream several meters (yards) beneath the surface. Right: A remarkable perched lava pond was active on the June 27 lava flow more than a month ago. On August 12 a small lava flow erupted from the rim of the inactive pond, with the flow presumably originating from fluid lava that remained in the perched pond interior. This type of flow is commonly erupted from perched lava ponds and small lava shields, and we informally refer to these as "seeps". The seeps have a characteristic spiny, toothpaste-like, flow texture. Today, this seep was inactive, but the flow interior remained incandescent. The front of this small flow can be seen at the top of the photograph.

Another skylight and view into the tube supplying lava to the front of the June 27 lava flow.

August 12, 2014 — Kīlauea


June 27 flow continues advancing through forest northeast of Puʻu ʻŌʻō

The June 27 flow remains active, and has advanced further into the forest over the past week. The flow front today was 8.5 km (5.3 miles) northeast of the vent on Puʻu ʻŌʻō (see "map" link above for current flow field map). The flow's continued brisk advance rate is likely related, in part, to its continued confinement by local topography. Today, the narrow flow front was within one of the many linear depressions (grabens) on the East Rift Zone. Puʻu ʻŌʻō can be seen in the distance.

Left: Another view of the flow front, looking east. The small bump on the horizon, near the center of the photograph, is the forested cone of Heiheiahulu. Right: Portions of the June 27 lava flow continue to expand and cover older flows from Puʻu ʻŌʻō.

Left: Thick fume continues to obscure views into Puʻu ʻŌʻō Crater with the naked eye. The thermal camera has proven useful recently to see the hidden activity, which includes several small lava ponds (see thermal image from the July 29 overflight, below). Right: A skylight reveals the fluid lava stream within the main tube on the June 27 lava flow. The recently active perched lava pond is in the upper left portion of the photograph.

A closer look into the skylight on the June 27 lava flow, revealing complex structure within the lava tube. The bright incandescent area is the fluid lava stream, which was slowly but steadily flowing through the tube.

August 10, 2014 — Kīlauea


Lava lake activity continues in Halemaʻumaʻu Crater

The usual lava lake activity continues in Halemaʻumaʻu Crater with no major changes related to the recent hurricane. This afternoon the lake surface was about 40 meters (130 ft) below the floor of Halemaʻumaʻu Crater, which has been typical over the past several weeks. Lake surface migration was from north to south (top of photo to bottom), and occasional gas bubbles were bursting through the crust.

August 6, 2014 — Kīlauea


June 27 lava flow reaches forest boundary

The June 27 flow continues to advance at a brisk rate, and has reached the forest boundary over the past week. On today's overflight, thick plumes of smoke from burning vegetation partially obscured the flow front. See the "maps" link above for today's flow field map.

A wider view of the flow front, looking east. The June 27 flow is the lighter-colored lava passing through the center of the photograph.

July 29, 2014 — Kīlauea


June 27 lava flow advance rate increases

The June 27 flow front has advanced more rapidly over the past four days, and is now 4.2 km (2.6 miles) from the vent. This recent increased advance rate is due to the confinement of the flow against the slopes of an older perched lava channel, from 2007. The advance rate will likely drop in the coming days as the flow passes the confines of the perched channel and spreads out on flatter topography.

Left: Another view of the front of the June 27 flow, looking northeast. The flow front has narrowed as it has been confined against the slopes of the 2007 perched lava channel, and this is associated with a higher advance rate of the flow front over the past four days. Right: View, looking southwest, of Puʻu ʻŌʻō and the new perched lava pond. Puʻu ʻŌʻō is the fume-filled crater in the top half of the image. The circular feature in the lower portion of the photograph is the perched lava pond active earlier this month, which was fed by the June 27 lava flow. This perched lava pond is now inactive, but the June 27 flows continue to advance towards the northeast (see other photos from today).

Visual-thermal comparison of Puʻu ʻŌʻō crater, looking west. In the normal photograph on the left, large portions of the crater floor are obscured by thick volcanic fume. The thermal image on the right can "see" through this fume, revealing features in the crater. Over the past month, a large portion of the crater floor has subsided. Within this triangular subsidence area, three small lava ponds were active today. Two are visible in this thermal image, while a third (near the South lava pond) is blocked by a steep wall from this angle.

July 28, 2014 — Kīlauea


Puʻu ʻŌʻō crater at dawn

A time-lapse camera on the rim of Puʻu ʻŌʻō crater captured this image at dawn. The view is towards the southeast, and shows two glowing pits in the southern portion of the crater floor. Our overflight the next day showed that these pits are filled with small lava ponds.

July 24, 2014 — Kīlauea


Movies showing July 23 explosive event

Movie from a webcam positioned on the rim of Halemaʻumaʻu, directly above the summit lava lake, showing the July 23 explosive event. The movie images were captured at 1 frame/second, and the playback speed is 12 frames/second.

Movie from a webcam positioned in the observation tower at the Hawaiian Volcano Observatory, next to Jaggar Museum, near the summit of Kīlauea, showing the July 23 explosive event. The movie images were captured at 2 frame/second, and the playback speed is 12 frames/second.

July 23, 2014 — Kīlauea


Rockfall triggers explosive event at Halemaʻumaʻu

Just after 10 AM this morning, the southeastern wall of the Overlook crater, in Halemaʻumaʻu, collapsed and fell into the summit lava lake. This triggered a small explosive event that threw spatter bombs onto the rim of Halemaʻumaʻu at the site of the tourist overlook, closed since 2008. This image is a still taken from the webcam positioned on the rim of Halemaʻumaʻu at that location, showing spatter in the air directly in front of the camera.

Left: The lava fragments ejected ranged in size from dust-sized particles up to spatter bombs about 70 cm (~30 inches) across. The larger clasts – the bombs – dotted the ground around the tourist overlook and webcam, giving the area a look reminiscent of a cow pasture. Right: As has been seen with almost all previous explosive events at Halemaʻumaʻu since 2008, the spatter that was ejected was coated in dust and filled with small lithic fragments – clear evidence of the involvement of lithic wall rock. The knife is 12 cm (4.5 in) long.

Left: Spatter landed on wooden fencing laying on the ground at the closed tourist overlook, igniting it in a few places. Right: The part of the Overlook crater wall that collapsed is evident in the center of this photo by its white color.

July 18, 2014 — Kīlauea


New crater at Puʻu ʻŌʻō

Left: Since the onset of the "June 27 breakout" flow, the central part of Puʻu ʻŌʻō's crater has been collapsing slowly. Thick fume and steam prevented good views, but this photo shows the edge of the ring fracture that bounds the collapse. The heavy fume comes from pits that formed where spatter cones used to be. The view is toward the east; the "June 27 breakout" flow starts near the left side of the photo, marked by thin bluish fume. Right: Perhaps the most interesting feature in the new crater at Puʻu ʻŌʻō is the pit formed on the southern side of the crater floor. There, a small lava pond roughly 10 m (~30 ft) across has been sporadically overflowing and sending lava toward the deeper central part of the crater. View is to the south.

Inactive perched lava pond and the new lava tube

Left: After the June 27 breakout started, a perched lava pond – looking something like a giant above-ground swimming pool – grew over the main vent. Notice the nearly flat upper surface of the now-inactive pond just above and to the left of center, and the relatively steep levee which contained the pond. The pond was abandoned after lava broke from a new spot near the west edge of the pond. That flow has begun constructing a lava tube, its trace marked by the fume to the right of the perched pond. The view is toward the southeast. Right: Here is steeper view of the inactive lava pond, just left of center. After it was abandoned, its surface crusted over and sagged to form a gentle bowl. Skylights and points of fume just right of center mark the trace of the new tube. Puʻu ʻŌʻō is at upper right. The view is toward the south-southeast.

Terminus of new flow near Kahaualeʻa

Left: The front of the "June 27 breakout" flow, seen here as the silvery lava at lower right, is about 2.0 km (~1.2 miles) northeast from its vent (as measured in a straight line), and surrounds what little remains of Puʻu Kahaualeʻa, a forested cone several hundred years old. View is toward the southwest, and Puʻu ʻŌʻō is at upper right. Right: Here is a closer view showing the beleaguered Puʻu Kahaualeʻa surrounded by active Pāhoehoe flows. The view is to the northwest.

July 6, 2014 — Kīlauea


A new lava shield is being built on Puʻu ʻŌʻō

The June 27 breakout has remained active over the past week, emitting short lava flows from the vent on Puʻu ʻŌʻō's northeast flank. These flows have stacked upon one another creating a lava shield, which now hosts a lava pond. This before and after comparison from our webcam east of Puʻu ʻŌʻō shows the dramatic change to the skyline that this new lava shield has created.

June 30, 2014 — Kīlauea


June 27 breakout building a lava shield near Puʻu ʻŌʻō; Kahaualeʻa 2 flow is dead

The June 27 breakout initially produced a channelized lava flow that reached Puʻu Kahaualeʻa (about 1.5 km, or 0.9 miles, from the vent) during the first day, but over the past two days the surface flows have retreated closer to the vent, building a lava shield (visible just above the center of the photograph).

This comparison of the normal photograph with a thermal image shows the extent of the lava shield clearly. The lava shield is visible as the area of high temperatures (hot colors) in the thermal image. Corresponding spots are marked with small arrows for reference. The initial channelized flow that reached Puʻu Kahaualeʻa during the first day is inactive now, but still slightly warm.

Another look at the lava shield formed from lava erupting from the June 27 vent. The shield consists of a broad, and relatively flat, top with multiple narrow streams of lava flowing down the sides.

A view of the lava shield with the thermal camera.

Left: The lava pond in the northeast portion of Puʻu ʻŌʻō crater. A lava pond has existed here for months, but it enlarged considerably during lava level drop and collapses that occurred with the start of the June 27 breakout. Today, the lava pond was about 35 meters (yards) across, and seven meters (yards) below the rim. Right: A view from the ground of the lava pond in the northeast portion of Puʻu ʻŌʻō crater. Note the layering exposed in the wall above the pond surface.

Left: View of the wall above the lava pond in the northeast portion of Puʻu ʻŌʻō crater. The lava pond surface is in the lower portion of the photograph. The dark hole in the upper part of the photograph is the truncated entrance to the lava tube that had been supplying lava to the Kahaualeʻa 2 flow. With the lava level well below the entrance to the lava tube, lava is no longer flowing into the tube and the Kahaualeʻa 2 flow is now inactive. The lava tube here is about 2 meters (yards) wide. Right: A closer view of the entrance to the lava tube that had been supplying the Kahaualeʻa 2 flow.

This Quicktime movie shows activity in the lava pond in the northeast portion of Puʻu ʻŌʻō crater. A lava pond has been here for months, but it enlarged considerably during the June 27 breakout as the lava level in the pond dropped.

The Kahaualeʻa 2 flow is dead

Until recently, surface flows were active in this portion of the Kahaualeʻa 2 flow, triggering small brush fires and creating smoke plumes. With the opening of new vents on June 27, the supply of lava into the Kahaualeʻa 2 tube was shut off (see photos of the tube above). There were no active surface flows anywhere on the Kahaualeʻa 2 flow today.

June 27, 2014 — Kīlauea


New breakout on the northeast flank of Puʻu ʻŌʻō

Elevated pressure within Puʻu ʻŌʻō cone reached a breaking point this morning with magma intruding through the cone and erupting from fissures on the northeast flank of the cone. These new vents fed a vigorous, but still relatively short, channelized flow that had reached about 1.5 km (0.9 miles) northeast of Puʻu ʻŌʻō by 11 am. This new activity was accompanied by minor sagging of the Puʻu ʻŌʻō crater floor, due to withdrawal of magma within the cone.

View of the sinuous channelized flow that is moving to the northeast. The flow front this morning was about 1.5 km (0.9 miles) from Puʻu ʻŌʻō.

Left: The advancing front of the channelized flow northeast of Puʻu ʻŌʻō. The front this morning was 1.5 km (0.9 miles) from Puʻu ʻŌʻō. Right: Thermal image of the channelized lava flow. Puʻu ʻŌʻō is at the top of the image. The line of slightly lower temperatures down the center of the channel represents more intact (and cooler) crust, which is less disrupted than the lava near the channel margins.

This Quicktime movie shows the swiftly moving lava in the channelized flow.

This Quicktime movie shows a large chunk of lava being pushed by the current in the channel.

This comparison of a normal photograph with a thermal image shows the distribution of activity northeast of Puʻu ʻŌʻō. Today's breakouts originated from several fissures on the upper northeast flank of Puʻu ʻŌʻō cone, sending out flows to the northeast. These partially overlap with the existing Kahaualeʻa 2 flow, which had scattered surface flows this morning.

A closer look at the breakout points of today's new activity. The lava erupted from several fissures which broke through, and slightly uplifted, older lava on the cone.

Left: A very close view of one of the breakout points, with fresh spatter coating the older lava. Right: Another view of the spatter coating the area around the breakout point.

The withdrawal of magma from within Puʻu ʻŌʻō, to feed the new flows, has caused minor subsidence of the Puʻu ʻŌʻō crater floor since this morning. This was associated with small collapses at the spatter cones on the crater floor. A partial collapse of this cone revealed a small pond of lava just below the surface.

As noted above, the new flows have caused withdrawal of magma within Puʻu ʻŌʻō and small collapses of the several cones on the crater floor. Dropping lava levels in the northeast lava pond in Puʻu ʻŌʻō crater caused collapses and enlargement of the pond, which has nearly claimed the time-lapse camera (left side of images) observing the lava pond.

Kahaualeʻa 2 flow remained active this morning

Surface flows remained active this morning on the Kahaualeʻa 2 flow, but today's observations suggest that the new breakouts at Puʻu ʻŌʻō may have interrupted the lava supply to the Kahaualeʻa 2 flow field. Observations over the next few days will be able to determine if the lava supply to the Kahaualeʻa 2 flow has ceased.

June 17, 2014 — Kīlauea


The Kahaualeʻa 2 flow front

The Kahaualeʻa 2 flow remains active northeast of Puʻu ʻŌʻō. Today, its most distant tip, in the foreground of this photo, was burning into the forest 7.0 km (4.3 miles) from its source at Puʻu ʻŌʻō. View is toward the southwest.

Puʻu ʻŌʻō crater and the Northeast spatter cone

Left: The fuming spatter cone near the center of the photo is informally called the “Northeast spatter cone”, and is the source of the Kahaualeʻa 2 flow. Lava reaches the surface at that point and flows directly into a lava tube, which feeds the active flows downslope. View is toward the west. Right: While the top of the Northeast spatter cone is often open, revealing a small lava pond (see photo from June 6, 2014), today its top was sealed shut. This has happened several times over the past year, and is likely a temporary situation. View is toward the northwest.

Halemaʻumaʻu and the Overlook Crater lava lake

Left: The summit lava lake, its surface composed of solidified plates separated by incandescent seams, was about 42 m (138 ft) below the floor of Halemaʻumaʻu today. The mostly destroyed visitor overlook is at the left side of the photo, on the rim of Halemaʻumaʻu. View is toward the west. Right: Spattering was occurring at three locations along the edge of the lava lake during today’s overflight. Spattering like this is common, can occur anywhere around the lake margin (though it most often occurs at the southeast edge), and repeatedly starts and stops. View is toward the southeast.

June 6, 2014 — Kīlauea


Breakouts remain active on the Kahaualeʻa 2 flow

Summit deflation in May resulted in a decrease in lava supply to the Kahaualeʻa 2 flow, with the flow front becoming inactive and stalling. Breakouts behind the flow front, however, remain active. The thermal image on the right shows these breakouts clearly as the yellow and white regions. The farthest active surface flows today were 6.5 km (4.0 miles) from the vent on Puʻu ʻŌʻō. Puʻu ʻŌʻō can be seen in the upper left of the visual photograph.

The lava pond in the northeast portion of Puʻu ʻŌʻō crater remains active, and has built up a slightly elevated rim following several overflows over the past week. Today the pond was gently gas pistoning - a process that involves the cyclic rise and fall of the lava level due to gas buildup and release.

Left: Gas bubbles rising through the lava pond create small blisters in the thin flexible crust near the pond margin. Right: An HVO geologist shields his face from intense heat as he dips a rock hammer into an active pāhoehoe toe. After scooping out the lava it is placed in the water to quench it. HVO routinely collects lava samples for chemical analysis, which can give insight into changes in the magmatic system.

Good views of the lava lake in Halemaʻumaʻu Crater

Left: Thin fume allowed good views of the lava lake in the Overlook crater, which is set within Halemaʻumaʻu Crater at the summit of Kīlauea. The lake is roughly 150 meters (490 ft) wide by 200 meters (700 ft) long. Although spattering is commonly present along the margin of the lake, during our overflight no spattering was occurring. Right: A view of the summit lava lake from above, using a thermal camera. The thermal images clearly show the thin crustal plates that make up the surface of the lake. The plates are separated by hot incandescent cracks. The lake surface is constantly moving, normally from north to south (roughly from the upper-right portion of the image towards the lower-left).

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