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Color geologic map of the Island of Hawaiʻi
December 31, 2021

Geologic map of the State of Hawaiʻi

Sherrod, D.R., Sinton, J.M., Watkins, S.E., and Brunt, K.M., 2021, Geologic map of the State of Hawaiʻi: U.S. Geological Survey Scientific Investigations Map 3143, pamphlet 72 p., 5 sheets, scales 1:100,000 and 1:250,000, https://doi.org/10.3133/sim3143.

Color photograph of volcanic vent
November 29, 2021

November 29, 2021 — Kīlauea

View from the south looking at the active west vent in Halema‘uma‘u at Kīlauea summit. The vent is mostly obscured by a plume of steam and sulfur dioxide, with a little spatter visible. A lava flow is slowly entering the lava lake from the base of the scoria cone that has been constructed around the west vent. USGS photo by D. Downs.

Color photograph of lava lake
November 29, 2021

November 29, 2021 — Kīlauea, active western part of the lava lake

View from the south looking at the western, active part of the lava lake in Halema‘uma‘u crater at the summit of Kīlauea. Effusion into the lava lake is slow and steady with a few red-orange incandescent patches of lava visible within the flat black part of the lava lake. The perched margin of the active lava lake is visible around its perimeter. USGS photo by D. Downs.

Color photo of a volcanic vent erupting in a crater, with a plume of gas being emitted
November 23, 2021

Halema‘uma‘u Lava Lake—November 23, 2021

Lava continues to eruption from a vent on the western wall of Halema‘uma‘u crater and flow into the lava lake. The active area of the lava lake remains similar in size to the previous week. In the foreground, a down-dropped block containing a segment of the old Crater Rim Drive can be seen. The southeast flank of Mauna Loa is in the background. USGS photo taken by B. Carr

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A color photo of an active volcanic vent with ponded lava spattering and degassing within a cone
November 23, 2021

Halema‘uma‘u west vent—November 23, 2021

Lava erupts through a perched lava pond in the active western vent of Halema‘uma‘u crater, and supplies lava to the lava lake. Spatter bursts like the one seen here disrupt the pond surface nearly continuously and occasionally throw lava outside the vent, building up the cone. This burst is approximately 5 meters (16 feet) tall. USGS photo taken by B. Carr on November 23,

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Color photograph of volcanic vent and bird
November 23, 2021

Halema‘uma‘u west vent lava pond with koa‘e kea bird

Lava continues to erupt from a perched lava pond within the west vent of Halema‘uma‘u crater at the summit of Kīlauea. This photo shows spatter bursts through the pond and a roiling and sloshing pond surface, as well as a white-trailed tropicbird (koa‘e kea).. These birds make their homes in the walls of Halema‘uma‘u crater and are frequently seen flying around the crater

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November 23, 2021

Halema‘uma‘u west vent lava pond with koa‘e kea bird

Lava continues to erupt from a perched lava pond within the west vent of Halema‘uma‘u crater at the summit of Kīlauea. This video shows nearly continuous spatter bursts through the pond and a roiling and sloshing pond surface. At about 43 seconds into the video, a white-trailed tropicbird (koa‘e kea) flies through the frame. These birds make their homes in the walls of

Color map of lava lake at volcano summit
November 19, 2021

November 19, 2021—Kīlauea summit eruption reference map

This reference map depicts the ongoing Kīlauea summit eruption on November 19, 2021. One eruptive vent is active within Halema‘uma‘u at this time, along the western edge of the rising lava lake. Similar to the last eruption—from December 2020 until May 2021—the eastern end of the lava lake has stagnated and solidified, and sits several yards (meters) lower than the

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Color photograph of volcanic vent
November 18, 2021

November 18, 2021 — Kīlauea roiling fountains

A telephoto photograph of the roiling 4-7 meter (13-23 ft) lava fountains of the western vent in Halema‘uma‘u crater at the summit of Kīlauea. The spatter cone is nearly circular, with only one outlet letting lava cascade east into the lake. Concentric lava crust rings form around where lava enters the lake from a single source with persistent flux. USGS image by C.

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Color map of lava lake temperature
November 16, 2021

November 16, 2021—Kīlauea summit thermal map

A helicopter overflight on November 16, 2021, at approximately 8:30 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. The scale of the thermal map ranges from blue to red, with blue colors indicative of cooler temperatures and red colors indicative of warmer temperatures. Within the western vent cone, a

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Color photograph of caldera
November 16, 2021

Aerial view of eastern half of Kīlauea summit caldera

Aerial view looking northeast of the eastern half of the Kīlauea summit caldera, taken during a helicopter overflight of the Kīlauea summit on the morning of November 16, 2021. The current lava lake in Halema‘uma‘u is visible in bottom left, and scarps associated with 2018 Kīlauea summit collapse are prominent in the center of the photo. Crater Rim Drive (closed to

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Color photograph of lava flows
November 16, 2021

Aerial view of Kīlauea September 1982 lava flow

During a helicopter overflight of Kīlauea summit on the morning of November 16, 2021, this aerial view (looking southwest) of the lava flow erupted in September 1982 was captured. The September 1982 lava flow exited Kīlauea summit caldera through a narrow gap, visible near the center of the photo. The narrow lava flow, which is a reflective black color in the photo, then

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