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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Kīlauea lower East Rift Zone lava flows and fissures, June 18, 9:00...
June 18, 2018

Kīlauea LERZ lava flows and fissures, June 18, 9:00 a.m.

Map as of 9:00 a.m. HST, June 18, 2018. Given the dynamic nature of Kīlauea's lower East Rift Zone eruption, with changing vent locations, fissures starting and stopping, and varying rates of lava effusion, map details shown here are accurate as of the date/time noted. Shaded purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015.

Geologist test temperature reading of a fissure crack
June 18, 2018

Kīlauea Volcano — Thermal Camera Measurement

An HVO geologist uses a thermal camera to measure the temperature (about

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Looking at a crater with steam rising from cracks
June 18, 2018

Kīlauea Volcano — Halema`uma`u Crater

North side of the growing Halema‘uma‘u crater, marked by large cracks and large blocks that have slumped into the crater.

June 18, 2018

Kīlauea Volcano — Weak Plume at Halem`uma`u (webcam)

On June 18, 2018, at 6:13 AM, a seismic event occurred at Halema‘uma‘u that produced a relatively ash-poor gas 

plume rising from ocean entry
June 17, 2018

Kīlauea Volcano — Vacationland Laze Plume

Lava enters the ocean entry in the vicinity of Vacationland, producing a vigorous laze plume. Lava flowing into the ocean has built a delta of flows, rock rubble and black sand, which is over 320 acres in size.

Crater in the distance
June 17, 2018

Kīlauea Volcano — Halema`uma`u Crater

Inward slumping of the rim and walls of Halema‘uma‘u continues in response to ongoing subsidence at the summit. Sulfur dioxide emissions from the volcano's summit have dropped to levels that are about half those measured prior to the onset of the current episode of eruptive activity. This gas and very minor amounts of 

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View of lava channels
June 17, 2018

Kīlauea Volcano — Lava Channels

Occasionally, minor amounts of lava briefly spill over the lava channel levees. The spill overs are the shiny gray lobes along the channel margins. The lava flow field has been relatively stable with little change to its size and shape over the past few days. View to the east, with the 

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Aerial of Fissure 8
June 17, 2018

Kīlauea Volcano — Fissure 8

Morning overflight of Kīlauea Volcano's lower East Rift Zone by the Civil Air Patrol provides context for the location of the 

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June 17, 2018

Kīlauea Volcano — Fissure 8

In this video taken from the Leilani Estates subdivision, lava at 

Kīlauea Volcano's lower East Rift Zone...
June 17, 2018

Kīlauea's LERZ

Morning overflight of Kīlauea Volcano's lower East Rift Zone by the Civil Air Patrol provides context for the location of the fissure 8 fountain and lava channel within the lower Puna District. View is to the north. Image courtesy of Civil Air Patrol.

Aerial of ocean entries
June 16, 2018

Kīlauea Volcano — Kapoho Bay and Vacationland

Lava from fissure 8 travels about 13 km (8 mi) down a well established channel (visible in the center of the image) to an ocean entry at Kapoho. Lava is building a seaward delta that is approximately 320 acres in size. The view is to the southwest with the Kapoho area in the lower right. The white 

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What's Hot and Not in Lava Field Fashion...
April 13, 2017

Here are some tips from for essential lava field fashion from the USGS Hawaiian Volcano Observatory geologists who walk miles on Kīlauea lava flows—both new and old.

HVO geologists encountered only one tiny breakout on the coastal pl...
April 8, 2017

Small delta has formed at ocean entry; evidence of recent delta collapses

For Sutton, It's Been A Gas!...
April 6, 2017

Hawaiian Volcano Observatory (HVO) staff, alumni and friends recently gathered to honor the long and fruitful career of Jeff Sutton, our recently retired colleague. 

Bogoslof Volcano, Alaska: ongoing eruption through the Bering Sea...
March 30, 2017

Hawai‘i is not the only island in the United States with an ongoing eruption involving hot lava and cold water.

Volcanic explosions provide the foundation for agriculture...
March 23, 2017

The ash deposits on the southeastern part of the Island of Hawai‘i have fortuitously presented an agricultural opportunity in an otherwise rocky and hilly landscape. An underappreciated fact is that the explosive nature of our volcanoes provided this opportunity. 

A 3D tour of Kīlauea's summit lava lake...
March 20, 2017

A 3D tour of Kīlauea's summit lava lake

Kīlauea Volcano's summit eruption in Halema‘uma‘u Crater reaches 9t...
March 16, 2017

Kīlauea Volcano’s summit eruption in Halema‘uma‘u Crater began in March 2008. 

This video clip shows the Kamokuna ocean entry, with the laze plume...
March 10, 2017

Episode 61g Kamokuna ocean entry remains active