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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Map of distal flow field with thermal overlay...
February 23, 2015

This map overlays a georegistered mosaic of thermal images collected during a helicopter overflight of the distal part of Kīlauea’s active East Rift Zone lava flow on February 23 at about 12:30 PM.

Map of distal flow field...
February 23, 2015

This large-scale map uses a satellite image acquired in March 2014 (provided by Digital Globe) as a base to show the area around the front of Kīlauea’s active East Rift Zone lava flow.

Small-scale map of flow field...
February 19, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to lower Puna. 

Large-scale map of flow field...
February 19, 2015

This large-scale map shows the distal part of Kīlauea’s active East Rift Zone lava flow in relation to nearby Puna communities.

Thermal overlay of distal part of flow field...
February 19, 2015

This map overlays a georegistered mosaic of thermal images collected during a helicopter overflight of the distal part of Kīlauea’s active East Rift Zone lava flow on February 19 at about 10:30 AM. 

Map of distal part of flow field...
February 19, 2015

This large-scale map uses a satellite image acquired in March 2014 (provided by Digital Globe) as a base to show the area around the front of Kīlauea’s active East Rift Zone lava flow. 

Satellite image of area around front of Kīlauea's East Rift Zone la...
February 14, 2015

This satellite image was captured on Saturday, February 14, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite.

Thermal overlay of distal part of flow field...
February 10, 2015

This map overlays a georegistered mosaic of thermal images collected during a helicopter overflight of the distal part of Kīlauea’s active East Rift Zone lav£a flow on February 10 at about 12:30 PM. 

Small-scale map of Kīlauea's East Rift Zone lava flow...
February 10, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava£ flow in relation to lower Puna. 

Large-scale map of Kīlauea's East Rift Zone lava flow...
February 10, 2015

This large-scale map shows the distal part of Kīlauea’s active East Rift Zone lava flow in relation to nearby Puna communities.

Satellite image of area around front of Kīlauea's East Rift Zone la...
February 10, 2015

This large-scale map uses a satellite image acquired in March 2014 (provided by Digital Globe) as a base to show the area around the front of Kīlauea’s active East Rift Zone lava flow

Small-scale map of Kīlauea's East Rift Zone lava flow...
February 5, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava fl£ow in relation to lower Puna.

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Color map depicting lava flow thickness
July 31, 2019

Kīlauea 2018 lower East Rift Zone lava flow thicknesses

Data depicted on this map of Kīlauea lower East Rift Zone lava flow thicknesses are derived from a 2019 USGS topographic survey that utilized a helicopter-mounted light detection and ranging (LiDAR) sensor. The post-eruption elevations measured by this survey were compared to elevations in pre-eruption surveys—which depicted both the land surface and ocean floor—to

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Halema‘uma‘u taken during a helicopter lidar survey on July 25, 2019
July 25, 2019

Halema‘uma‘u taken during a helicopter lidar survey on July 25, 2019

Telephoto views of water in the bottom of Halema‘uma‘u taken during a helicopter lidar survey on July 25, 2019 (left), when the pond was first observed, and a USGS overflight on August 1, 2019 (right). The pond grew slightly in size and depth between the two dates; an "X" marks the same rock in both photos for comparison. Left photo courtesy of Ron Chapelle, Quantum

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residual heat, steam, and small amounts of other gases continue to escape
July 18, 2019

residual heat, steam, and small amounts of other gases continue to esc

Although Kīlauea Volcano's 2018 lower East Rift Zone eruption is over, residual heat, steam, and small amounts of other gases continue to escape from ground cracks and vents in the lower Puna area near Highway 130 as molten rock underground cools.

July 10, 2019

Routine overflight of Mauna Loa summit

This video shows Moku‘āweoweo, the caldera at the summit of Mauna Loa, during a routine overflight. The flight path goes from northeast to southwest, and begins at North Pit crater before crossing over the main caldera floor. In the southwest portion of the caldera floor, the 1940 and 1949 cones can be seen. The video ends as the helicopter flies over South Pit, at the

Interferogram for the period from April 6 to June 2, 2019
June 2, 2019

Interferogram for the period from April 6 to June 2, 2019

COSMO-SkyMed (CSK) Interferogram for the period from April 6 to June 2, 2019, covering Kīlauea Volcano’s summit region. Each color fringe represents 1.65 centimeters (0.65 inches) of ground displacement. The closely spaced color bands, or fringes, within the caldera indicate localized inflation, while the broader fringes on the northwest side of the caldera indicate a

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Kīlauea that will be covered by a helicopter lidar survey in June 2019
May 28, 2019

Kīlauea that will be covered by a helicopter lidar survey in June 2019

Areas on Kīlauea that will be covered by a helicopter lidar survey in June 2019. Red lines enclose areas over which the survey helicopter will fly at 396 m (1,300 ft) above ground level. Green lines enclose areas over which the helicopter will fly at 151 m (500 ft) above ground level.

bright yellow Hughes 500 helicopter
May 20, 2019

bright yellow Hughes 500 helicopter

During the lidar survey, equipment will be mounted on a bright yellow Hughes 500 helicopter like the one shown here. The helicopter will fly in a northeast or southwest direction over the survey areas depicted on the map.

field crews of Hawaiian Volcano Observatory
May 1, 2019

field crews of Hawaiian Volcano Observatory

Kīlauea Volcano’s 2018 lower East Rift Zone eruption was monitored around the clock by field crews of Hawaiian Volcano Observatory and other USGS scientists for three months, starting with the first fissure that erupted in Leilani Estates on May 3, 2018. Clockwise from upper left, USGS-HVO scientists walked along Leilani Avenue on May 6 to examine spatter erupted from

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April 29, 2019

Timelapse sequence shows a typical day at Mauna Loa's summit

This timelapse sequence of webcam images over a 24-hour period shows a typical day at the summit of Mauna Loa. The webcam (MLcam) is located on the northeast rim of Moku‘āweoweo, Mauna Loa's summit caldera. This sequence begins in the dark, with the moon rising (white dot at left in images), then brightens as the sun rises. Clear skies in the morning shift to cloudy

floor of Mauna Loa caldera floor with blue sky in the background
April 24, 2019

Mauna Loa caldera

HVO staff visited the summit of Mauna Loa on foot to repair the webcam on April 24. The weather was perfectly clear and views of the caldera floor showed nothing unusual.

HVO geologist walks along the Mauna Loa summit trail
April 24, 2019

HVO geologist walks along the Mauna Loa summit trail

An HVO geologist walks along the Mauna Loa summit trail, with Mauna Kea visible in the distant background.

'I'iwi (Drepanis coccinea).
April 15, 2019

'I'iwi (Drepanis coccinea), or scarlet honeycreeper.

'I'iwi (Drepanis coccinea), or scarlet honeycreeper.

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View of new fissure from Luana Street near fissure 2 and 7, Leilani...
May 5, 2018

View of new fissure from Luana Street near fissure 2 and 7, Leilani Estates

At 12:44 p.m. HST, a column of robust, reddish-brown ash plume occu...
May 4, 2018

New lava fissure on Makamae and Leilani Streets in Leilani Estates subdivision

Ash plume rises above Pu‘u ‘Ō‘ō...
May 3, 2018

Eruption begins on Kīlauea Volcano's lower East Rift Zone

USGS
May 3, 2018

The intrusion of molten rock into the lower East Rift Zone of Kilauea Volcano reached the surface in the late afternoon on May 3 in a part of Leilani Estates. 

Several sets of new, small ground cracks observed on roads around L...
May 2, 2018

Several sets of new, small ground cracks observed on roads around Leilani Estates subdivision

USGS
May 2, 2018

The USGS Volcano Notification Service (VNS) is a free service that sends automatic notices (emails or texts) about volcanic activity at U.S. monitored volcanoes, including Hawaiian volcanoes. You can sign up to receive these notifications at http://volcanoes.usgs.gov/vns/.

USGS
May 1, 2018

Changes on Kīlauea Volcano's East Rift Zone

Kīlauea summit lava lake level drops with deflation...
April 30, 2018

Kīlauea summit lava lake level drops with deflation

Repeated overflows onto the Halema‘uma‘u crater floor...
April 27, 2018

Repeated overflows onto the Halema‘uma‘u crater floor

Night view of Kīlauea Volcano’s summit lava lake from April 24, 2018
April 26, 2018

The past few weeks have been exciting for volcano watchers on the Island of Hawai‘i, especially for visitors to Hawai‘i Volcanoes National Park’s Jaggar Museum overlook, where views of the active summit lava lake within Halema‘uma‘u have been spectacular.

This thermal image (looking south) shows the active overflows from ...
April 26, 2018

Large overflow onto Halema‘uma‘u crater floor

Continued overflows from the summit lava lake throughout the day...
April 25, 2018

Continued overflows from the summit lava lake throughout Wednesday