Volcano Hazards Program Office

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Color photograph of lava lake
May 6, 2021

Close-up view of active western portion of Halema‘uma‘u lava lake

This close-up view of the active western portion of the Halema‘uma‘u lava lake at the summit of Kīlauea was captured on Thursday, May 6 through the lens of a laser rangefinder used by HVO scientists to measure distances to features within the crater. HVO scientists observed that the area immediately surrounding the inlet to the lava lake (above-center) was slightly perched

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Color photograph of lava lake
May 6, 2021

Halema‘uma‘u lava lake, May 6, 2021

View of the active surface lava in the western portion of Halema‘uma‘u, at the summit of Kīlauea Volcano. The west vent (upper left) continues to erupt lava into the lava lake through an inlet near the base of the cone. The active lava lake surface area has decreased in size over the past two weeks since the northeast (right) and southwest (left) surface has been

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Color photograph of lava lake
May 5, 2021

Halema‘uma‘u eruptive activity on 05 May 2021

Lava continues to flow from the western vent (bottom left) into the lava lake at Halema‘uma‘u Crater at the summit of Kīlauea Volcano, Island of Hawai‘i. A portion of the active surface of the lava lake can be seen here with orange, incandescent lava between the west vent and the main island. This photograph was taken on Wednesday, March 5, 2021, at 12:37 p.m. HST from the

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May 1, 2021

YVO Update of Activity at Yellowstone and Plans for Summer Fieldwork

It's May, the snow is melting and the roads are mostly open, so it's time for geologists, geophysicist and geochemists to head into Yellowstone to start projects they have been planning for the last several months. Next week, a field team will deploy a temporary GPS network to help “densify” the network of continuous GPS stations already in place. The temporary GPS

Hiking along the rim of the 2018 collapse area at the summit of Kīlauea
April 30, 2021

View of Kīlauea summit eruption gas plume from southeast — April 30

While hiking along the rim of the 2018 collapse area at the summit of Kīlauea, HVO scientists visited a site to the southeast of Halema‘uma‘u known as Akanikōlea—a culturally-significant place that is featured in Hawaiian legends. While the lava lake from the ongoing eruption in Halema‘uma‘u is not visible from this vantage point, the gas plume from the eruption is (

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HVO scientists hiked along the closed Crater Rim Road on April 30th to retrieve acoustic (sound) sensors for a scientific study
April 30, 2021

View of Kīlauea's September 1982 lava flow lobe — April 30, 2021

HVO scientists hiked along the closed Crater Rim Road on April 30th to retrieve acoustic (sound) sensors for a scientific study. This section of the road was damaged by earthquake activity during the 2018 Kīlauea summit caldera collapse. This stretch of road traverses part of the September 1982 lava flow, visible as a lobe of black rock on the right of the road. Mauna Loa

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On Friday, April 30, lava continued to erupt from the west vent in Halema‘uma‘u at the summit of Kīlauea Volcano
April 30, 2021

Halema‘uma‘u lava lake, Kīlauea summit eruption—April 30, 2021

On Friday, April 30, lava continued to erupt from the west vent in Halema‘uma‘u at the summit of Kīlauea Volcano. Active surface lava (center of the photo) was limited to the center of the previously active lake surface, where the north (right) and south (left) sides have cooled and crusted over (appearing darker in the image). This photo was taken around 2 p.m. HST from

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The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active
April 27, 2021

View of lava lake in Halema‘uma‘u—Kīlauea, April 27, 2021

The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active, as seen in this view looking north. Active surface lava is limited to the western (left) portion of the lake between the main island and the western fissure complex. The active lava surface area has decreased in size over the past week, but remains perched approximately 3 meters (10 ft) higher

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On Monday, April 26, 2021, lava continued to flow from the western vent into the active lava lake in Halema‘uma‘u Crater
April 26, 2021

View of Halema‘uma‘u lava lake from the west, April 26, 2021

On Monday, April 26, 2021, lava continued to flow from the western vent (bottom left) into the active lava lake (center) in Halema‘uma‘u Crater at the summit of Kīlauea Volcano. The active lava lake surface continues to shrink as areas on the north (upper left) and south (center right) sides cool and solidify. This photograph was taken at 1:03 p.m. HST from the west rim of

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A close-up view of the west vent spatter cones and lava lake inlet in Halema‘uma‘u Crater at the summit of Kīlauea Volcano
April 26, 2021

Close-up view of the west vent and inlet at Halema‘uma‘u

A close-up view of the west vent spatter cones (bottom left) and inlet where lava is entering the lava lake (center right) in Halema‘uma‘u Crater at the summit of Kīlauea Volcano. A piece of crust, that solidified near the inlet, broke off and was being transported away from the inlet. This photograph was taken on April 26, 2021, at 1:51 p.m. HST from the west rim of

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Color map of lava
April 23, 2021

April 23, 2021—Kīlauea summit eruption contour map

This map of Halema‘uma‘u at the summit of Kīlauea shows 20 m (66 ft) contour lines (dark gray) that mark locations of equal elevation above sea level (asl). The map shows that the lava lake has filled 228 m (748 ft) of the crater, to an elevation of 745 m (2444 ft) asl since the eruption began on December 20, 2020. Contour lines highlighted in green, purple, and blue mark

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Color photograph of lava lake surface
April 23, 2021

April 22, 2021- Close-up view of Halema‘uma‘u lava lake crusting-over

This zoomed-in photo of the far southwest end of the active lava lake within Halema‘uma‘u at Kīlauea's summit was captured on Thursday, April 22, and it illustrates the process by which parts of the lava lake become inactive. This area, which had seen substantial lava circulation as recently as last week, now has a stagnant pāhoehoe crust that sits 2–3 m (7–10 ft) lower

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