Unified Interior Regions

Hawaii

The Pacific Region has nine USGS Science Centers in California, Nevada, and Hawaii. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

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Thermal map of fissure system and lava flows
May 31, 2018

This thermal map shows the fissure system and lava flows as of 12:15 pm on Thursday, May 31.

Map showing fissure flows
May 31, 2018

Map as of 9:00 a.m. HST, May 31, 2018.

Thermal map of fissure system and lava flows
May 30, 2018

This thermal map shows the fissure system and lava flows as of 12:15 pm on Wednesday, May 30.

Map showing fissure flows
May 30, 2018

Map as of 9:00 a.m. HST, May 30, 2018.

Map showing fissure flows
May 30, 2018

Map as of 3:00 p.m. HST, May 30, 2018.

Map showing fissure flows
May 29, 2018

Map as of 6:00 p.m. HST, May 29, 2018.

Map showing fissure flows
May 28, 2018

Map as of May 28, 2018 3:00 p.m. HST

Thermal map of fissure system and lava flows
May 28, 2018

This thermal map shows the fissure system and lava flows as of 1:15 pm on Monday, May 28.

Map showing fissure flows
May 27, 2018

Map as of 2:30 p.m. HST, May 27, 2018.

Map showing fissure flows
May 26, 2018

Map as of 3:00 p.m. HST, May 26.

Thermal map of fissure system and lava flows
May 25, 2018

This thermal map shows the fissure system and lava flows as of 12:15 pm on Friday, May 25.

Map showing fissure flows
May 25, 2018

Map as of 2:00 p.m. HST, May 25. 

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Map of volcano summit eruption
September 29, 2021

September 29, 2021, Kīlauea summit eruption map

This reference map depicts the ongoing Kīlauea summit eruption as of approximately 6:00 PM on September 29, 2021. Several new fissures (orange lines) within Halema‘uma‘u have erupted enough lava (red) to cover nearly all of the 12/2021–5/2021 lava lake by more than 36 ft (11 m). From that lava lake, only the peaks of the two largest islands and the west vent (shaded purple

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A USGS Hawaiian Volcano Observatory geologist takes video of the eruption that started within Halema'uma'u crater Kīlauea summit
September 29, 2021

HVO scientist takes video of Kīlauea summit eruption

A USGS Hawaiian Volcano Observatory geologist takes video of the eruption that started within Halema'uma'u crater, Kīlauea summit, at about 3:20 p.m. on September 29, 2021. Scientists continue to monitor the eruption and hazards from within an area of Hawai'i Volcanoes National Park that remains closed to the public due to safety reasons. USGS photo taken from the south

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With the summit eruption continuing through the night, HVO scientists monitor the eruption for changes in volcanic hazards
September 29, 2021

HVO scientists monitor ongoing eruption

Kīlauea volcano is erupting. With the summit eruption continuing through the night, HVO scientists monitor the eruption for changes in activity and volcanic hazards. High levels of volcanic gases are the primary hazard of concern, as this hazard can have far-reaching effects down-wind. USGS photo taken by D. Downs.

The ongoing Kīlauea summit eruption within Halema'uma'u crater continues to feed low lava fountains in the center of the lava la
September 29, 2021

Kīlauea summit eruption fissures within Halema'uma'u crater lava lake

The ongoing Kīlauea summit eruption within Halema'uma'u crater continues to feed low lava fountains in the center of the lava lake (pictured) and along the western wall of Halema'uma'u. This telephoto image is looking east at the center of the rising lava lake. The solid dark area below the fountains is the "lava island" that formed in December 2020 in the opeining hours

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A telephoto image of fissures that opened on the western wall of Halema'uma'u crater during the ongoing eruption that began 9/29
September 29, 2021

Kīlauea summit eruption fissures on west wall of Halema'uma'u

A telephoto image of fissures that opened on the western wall of Halema'uma'u crater during the ongoing eruption that began yesterday, September 29, at approximately 3:21 p.m. HST. Lava from multiple fissures continues to slowly raise the level of the new active lava lake at the summit of Kīlauea. USGS image by M. Patrick.

A telephoto image of one of the low lava fountains near the center of the growing Halema'uma'u lava lake
September 29, 2021

Lava fountain from Kīlauea's ongoing summit eruption

A telephoto image of one of the low lava fountains near the center of the growing Halema'uma'u lava lake. The ongoing eruption at the summit of Kīlauea is confined within Halema'uma'u, with numerous lava fountains producing lava and volcanic gases. Hawaiian Volcano Observatory scientists are monitoring the new eruption from an area within Hawai'i Volcanoes National Park

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September 29, 2021

September 29, 2021 — Kīlauea eruption west vent

A new Kīlauea summit eruption within Halema‘uma‘u crater began at approximately 3:20 p.m. HST on September 29, 2021, with fountains appearing on the central crater floor, where a lava lake had been active from December 2020 until May 2021. Just after 4:40 p.m., a new vent opened on the west wall of the crater, and the initial moments were captured in this video. USGS video

Color map of lava lake at volcano summit
September 29, 2021

New eruption in Halemaʻumaʻu crater at Kīlauea summit - September 29

At approximately 3:20 p.m. HST on September 29, 2021, the USGS Hawaiian Volcano Observatory (HVO) detected glow in Kīlauea summit webcam images indicating that an eruption has commenced within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park. Webcam imagery shows fissures at the base of Halemaʻumaʻu crater, within the area circled on

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September 29, 2021

September 29, 2021 — Kīlauea eruption crater wall west vents

A new Kīlauea summit eruption within Halema‘uma‘u crater began at approximately 3:20 p.m. HST on September 29, 2021, with fountains appearing on the central crater floor, creating a new lava lake. This video shows numerous vents active on the west crater wall. USGS video by M. Patrick.

Color photograph of fissure eruption
September 29, 2021

Kīlauea summit eruption in Halemaʻumaʻu crater - September 29, 2021

Kīlauea volcano is erupting. At approximately 3:20 p.m. HST on September 29, 2021, an eruption began within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park. Fissures at the base of Halemaʻumaʻu crater are generating lava flows on the surface of the lava lake that was active until May 2021. USGS image. 

September 29, 2021

September 29, 2021 — Kīlauea eruption central lake fountaining

A new Kīlauea summit eruption within Halema‘uma‘u crater began at approximately 3:20 p.m. HST on September 29, 2021, with fountains appearing on the central crater floor, creating a new lava lake. This video shows numerous fountaining sources in the central portion of the lava lake during the evening of September 29, 2021. USGS video by M. Patrick.

Color photograph of inactive lava lake
September 27, 2021

View of Halema‘uma‘u at Kīlauea summit - September 24, 2021

A view looking north into Halema‘uma‘u, at Kīlauea's summit, on September 24, 2021, seen during a brief clear spell between passing rain clouds. There has been no significant change in the surface elevation of the solidified crust of the lava lake since the eruption paused in late May 2021. The dark red main cone of the western fissure complex is visible on the west (left

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Subtle steaming was visible at Pu‘u ‘Ō‘ō during HVO's overflight of Kīlauea on March 4, 2021
March 5, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear and PPE—monitor the current eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Maps of seismic events leading up to the 2020 Eruption of Kīlauea Volcano
March 4, 2021

Pele returned to the summit of Kīlauea on the evening of December 20, 2020. Incredible video documents the start of the new eruption in Halema‘uma‘u and the dynamic ongoing activity. There was no significant change that suggested lava would erupt again so rapidly, but there were subtle signs of restless behavior around Kīlauea’s summit in the months prior to the eruption.   

View of the Kīlauea summit lava lake taken from the west rim of Halema‘uma‘u
March 4, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear and PPE—monitor the current eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Close-up view of the western fissure in Halema‘uma‘u, showing the incandescent lava upwelling at the inlet
March 3, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear and PPE—monitor the current eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Color photograph of lava lake and rainbow
March 1, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear and PPE—monitor the current eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Map of post-1823 lava flows erupted from Mauna Loa (gray) and numbe...
February 25, 2021

“When will Mauna Loa erupt next?” This was the title of a Volcano Awareness Month video presentation released by the USGS Hawaiian Volcano Observatory (HVO) in January 2021. This was also the topic of discussion among HVO scientists last week following the detection of slight changes in ground deformation and seismicity at the summit of Mauna Loa. 

color photograph of lava flow
February 25, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear and PPE—monitor the current eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

Color photograph of lava lake
February 24, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear and PPE—monitor the current eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

February 22, 2021 — Kīlauea
February 23, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear and PPE—monitor the current eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

HVO geologists use a laser rangefinder to measure the distance to the Halema‘uma‘u lava lake
February 22, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear and PPE—monitor the current eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

On the February 16 helicopter overflight, thermal imagery of the Halema‘uma‘u lava lake was collected
February 19, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic activity at the summit remain elevated. HVO field crews—equipped with specialized safety gear and PPE—monitor the current eruption from within the closed area of Hawai‘i Volcanoes National Park with NPS permission.

USGS science for a changing world
February 18, 2021

The USGS recently published "Unoccupied Aircraft Systems (UAS) video of the 2018 lower East Rift Zone eruption of Kīlauea Volcano, Hawaii." The Data Release contains UAS footage from the 2018 eruption of Kīlauea Volcano’s lower East Rift Zone, on the Island of Hawai‘i. A subset of the videos collected were used for monitoring the fissure 8 lava channel and for measuring flow velocities.