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A telephoto view of the west vent within Halema‘uma‘u crater taken during a HVO helicopter overflight
March 26, 2021

Halema‘uma‘u lava lake, Kīlauea summit eruption—March 26, 2021

A telephoto view of the west vent within Halema‘uma‘u crater taken during a Hawaiian Volcano Observatory helicopter overflight of Kīlauea summit. The west vent continues to supply lava into the active western portion of the lava lake from two adjacent inlets at its base (center-left). A pile of rubble, from a partial collapse of the cone several weeks ago, remains on the

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A wide view of the lava lake within Halema‘uma‘u crater at Kīlauea summit
March 24, 2021

March 24, 2021 view of the Kīlauea summit lava lake and west vent

A wide view of the lava lake within Halema‘uma‘u crater at Kīlauea summit, taken on March 24, 2021 at 12:48 p.m. HST. A gas plume rises from the west vent (center-left), which continues to erupt lava into the active western portion of the lava lake (light gray in color). The center and eastern lava lake surface is covered by a darker, stagnant crust. USGS photo taken by D

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March 23, 2021

Volcano Hazard Maps: Past, Present, and Future

Throughout most of human existence, we haven't known much about how volcanoes work. Because of their immense power, they have terrified and fascinated us, and remain places of great spiritual importance for many people. The lack of knowledge about volcanoes has sometimes resulted in tragic and deadly disasters. But with the emergence of the science of volcanology and as

The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active
March 23, 2021

View of lava lake in Halema‘uma‘u—Kīlauea—March 23, 2021

The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active. Active surface lava is limited to the western (bottom) portion of the lake between the main island and the western fissure complex. In this view looking east, a 4 meter (13 feet) diameter skylight is visible at the top of the northeastern-most spatter cone (left). USGS photo by N. Deligne on

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The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active
March 22, 2021

Halema‘uma‘u lava lake, Kīlauea summit eruption—March 22, 2021

The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active. Active surface lava is limited to the western portion of the lake, and is impounded by steep, well-defined levees. USGS photo by M. Patrick on March 22, 2021.

A close up of the inlet where lava from the western fissure feeds into the lake in Halema‘uma‘u
March 22, 2021

Halema‘uma‘u lava lake, Kīlauea summit eruption—March 22, 2021

A close up of the inlet where lava from the western fissure feeds into the lake in Halema‘uma‘u, at the summit of Kīlauea. The inlet is formed from two adjacent lava streams. USGS photo by M. Patrick.

Crustal foundering is common in the lava lake within Halema‘uma‘u
March 22, 2021

Halema‘uma‘u lava lake, Kīlauea summit eruption—March 22, 2021

Crustal foundering—less-dense liquid lava overriding and sinking thin surface crust—is common in the lava lake within Halema‘uma‘u, at the summit of Kīlauea. Here, large sections of the crust are foundering, resurfacing the lake. USGS photo by M. Patrick on March 22, 2021.

This photo shows one of the islands near the inlet in the lava lake in Halema‘uma‘u
March 22, 2021

Halema‘uma‘u lava lake, Kīlauea summit eruption—March 22, 2021

This photo shows one of the islands near the inlet in the lava lake in Halema‘uma‘u, at the summit of Kīlauea. Over the past two weeks, the island has tilted 90 degrees, producing the vertical layering visible here. USGS photo by M. Patrick on March 22, 2021.

A photo of the levee that bounds the southern margin of the active lake in Halema‘uma‘u
March 22, 2021

Halema‘uma‘u lava lake, Kīlauea summit eruption—March 22, 2021

This photo shows the levee that bounds the southern margin of the active lake in Halema‘uma‘u. The levee is formed, in part, by numerous small crustal plates pushed over the rim. USGS photo by M. Patrick on March 22, 2021.

The northern portion of the active lava lake in Halema‘uma‘u, at the summit of Kīlauea
March 22, 2021

Halema‘uma‘u lava lake, Kīlauea summit eruption—March 22, 2021

This photo shows the northern portion of the active lava lake in Halema‘uma‘u, at the summit of Kīlauea. Like the southern portion of the lake, this northern zone is also contained by steep, well-defined levees. USGS photo by M. Patrick on March 22, 2021.

Lava continued to erupt from the west vent in Halema‘uma‘u crater at Kīlauea Volcano's summit
March 18, 2021

Halema‘uma‘u Eruption Activity on 18 March 2021

On Thursday, March 18, lava continued to erupt from the west vent in Halema‘uma‘u crater at Kīlauea Volcano's summit. Two lava inlets near the base of the west vent (center) supply lava into the lava lake. This photo was taken around 7:15 a.m. HST from the south rim of Halema‘uma‘u crater, in an area within Hawai‘i Volcanoes National Park that remains closed to the public

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March 18, 2021—west vent in Halema‘uma‘u crater at Kīlauea Volcano's summit
March 18, 2021

March 18, 2021—West vent in Halema‘uma‘u crater at Kīlauea summit

On March 18, 2021, morning light illuminated the west vent in Halema‘uma‘u crater at Kīlauea Volcano's summit. Small collapses of the cone have accumulated into a loose pile of rubble (left) on the stagnant crust at its base—adjacent to the active lava lake (lower-right). USGS photo by K. Lynn.