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.
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.
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.
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.
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.
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
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.
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.