Images

In concert with inflationary tilt, the level of Kīlauea Volcano's summit lava lake rose over the past day and was measured at 28 m (92 ft) below the vent rim this morning.

On August 6, a rockfall from the steep walls of Overlook crater, which contains Kīlauea Volcano's summit lava lake, triggered an explosive event that deposited spatter (molten lava) and solid rock fragments on the rim of Halema‘uma‘u Crater. That event was just the latest in a series of explosions that began in 2008.

This aerial video footage, filmed by USGS in late July 2016, features Kīlauea Volcano's summit vent within Halema‘uma‘u Crater.

The beauty of Kīlauea Volcano's eastern Kamokuna ocean entry can be enjoyed from a safe distance upwind of where lava flows into the sea. The eastern entry site (shown here) has created a lava delta that is now about 5 acres in size; as this delta grows larger, so does the risk of a sudden collapse.

Rocks from the east rim of Kīlauea Volcano's summit vent fell into the lava lake at 10:02 p.m., HST, on Saturday, August 6, triggering an explosive event that hurled fragments of molten and solid rock onto the rim of Halema‘uma‘u Crater.

A plume of volcanic gas and ash rises from a vent on the east side of Halema`uma`u Crater, at the summit of Kīlauea caldera. The Hawaiian Volcano Observatory and Jaggar Museum of Volcanology are in the foreground.

On Friday afternoon, three areas of spattering on the summit lava lake surface produced abundant volcanic gas emissions, one of the main hazards near the Halema‘uma‘u Crater vent. Earlier this morning, spattering lava was visible from a safe distance at Jaggar Museum Overlook in Hawai‘i Volcanoes National Park.

 Aerial photograph of active lava lake in Hale maʻumaʻu Crater at the summit of Kīlauea volcano.

Perched on the rim of Kīlauea Volcano's summit caldera, the USGS Hawaiian Volcano Observatory and NPS Jaggar Museum (foreground) overlook the active lava lake within Halema‘uma‘u Crater. The black lava flows to the left and right of the fuming vent spilled onto the crater floor in April-May 2015, when the lava lake briefly filled to overflowing.

USGS HVO geochemist measuring gases released from Kīlauea with a Fourier transform infrared (FTIR) spectrometer, an instrument that detects gas compositions on the basis of absorbed infrared light.

The active lava flow on Kīlauea Volcano's south flank providing wonderful lava-viewing experiences for Park visitors. A section of the road can be seen here, with fume from the active lava tube in the far distance behind it, and the active flow front in the foreground. The flow front was less than 100 meters (yards) from the ocean when this photo was taken.

USGS HVO geochemist measuring gases released from Kīlauea with a Fourier transform infrared (FTIR) spectrometer, an instrument that detects gas compositions on the basis of absorbed infrared light.

Map of Kīlauea's active lava flow as of July 19, 2016. Red shows the extent of new breakouts since July 8; pink shows the flow prior as of July 8, and gray shows areas covered by earlier Pu‘u ‘Ō‘ō lava flows (1983-2016).

The active lava flow continues to creep across the coastal plain on Kīlauea's south flank. Breakouts of pāhoehoe (foreground) are fed by lava traveling through lava tubes from the Pu‘u ‘Ō‘ō vent and down Pūlama pali (top background). USGS photo.

A long, hot hike was not needed to see red lava today. Vigorous spattering from Kīlauea Volcano's summit lava lake was visible from the Jaggar Museum Overlook in Hawai‘i Volcanoes National Park as of this afternoon. The lava lake surface, measured at 25 m (82 ft) below the vent rim this morning, was high enough for the spattering to be seen from afar.

This map of Kīlauea Volcano's lava flow shows the locations of Hawai‘i County's designated lava-viewing and parking areas (http://www.hawaiicounty.gov/lava-viewing/), as well as the lava flow's location relative to the Hawai‘i Volcanoes National Park boundary (green line).

As Kīlauea Volcano's active pāhoehoe flow spreads across the coastal plain on July 6, the new lava appeared more shiny or silvery compared with the older lava beneath it. Molten "toes" of lava breaking out from the leading edges of the flow can be seen in the lower right quadrant of the photo. USGS photo.

Spattering was vigorous in the Kīlauea's summit lava lake this evening, but within the range of normal variation. Spatter was thrown up to the level of the floor of Halema‘uma‘u Crater, about 25 m (80 ft) above the lake surface.

A video of the spattering in the lava lake at Kīlauea's summit.

At the time the photograph was taken, the active lava flow from Pu‘u ‘Ō‘ō was on the slope near the top of the Pūlama pali, one of the steep escarpments on Kīlauea's southeast flank, and had transitioned into a channelized ‘a‘ā flow.

USGS Hawaiian Volcano Observatory scientists investigate a portion of the Great Crack in the Keaiwa flow field on Kīlauea Volcano's Southwest Rift Zone. USGS photo.