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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Aerial view of ocean entry
June 9, 2018

Kīlauea Volcano — Kapoho Ocean Entry

An aerial view of the Kapoho ocean entry, as of 6:30 a.m. HST today, shows the extent of the lava delta, now about 200 acres in size, that has formed over the past six days (lava first entered the ocean on the night of June 3). Across the front of the delta, plumes of laze—created by molten lava interacting with seawater—appeared diminished this morning, but was probably

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Aerial of summit showing cracking and slumping
June 9, 2018

Kīlauea Volcano — Halema`uma`u Cracking and Slumping

Cracking and slumping of the Halema‘uma‘u crater walls are clearly evident in this aerial view captured during HVO's overflight of Kīlauea's summit this morning. Steam plumes have been rising from within the crater, as well as from cracks adjacent to the crater.

June 9, 2018

Kīlauea Volcano — Ocean Entry and Laze

Video of the lava ocean entry during today's late afternoon overflight of the lower East Rift Zone. The

Kīlauea lower East Rift Zone lava flows and fissures, June 9, 10:00...
June 9, 2018

Kīlauea LERZ lava flows and fissures, June 9, 10:00 a.m.

Map as of 10:00 a.m. HST, June 9, 2018. The fissure 8 flow has created a lava delta approximately 200 acres in size, filling Kapoho Bay and shallow reefs along the nearby coastline.
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

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Plume coming from a crater
June 8, 2018

Kīlauea Volcano — Summit Pluming

Dramatic changes at Halema‘uma‘u could be seen through gases rising from the crater during HVO's overflight of the summit this morning at 10 a.m. HST. The view here looks to the southwest, with the former overlook parking lot barely visible to the left of the gas plume.

Plumes from ocean entry
June 8, 2018

Kīlauea Volcano — Kapoho Bay and Vacationland

HVO's early morning helicopter overflight of Kīlauea's lower East Rift Zone showed that lava continues to flow into the ocean in the vicinity of Kapoho Bay and Vacationland.

Outgassing rising from the summit
June 8, 2018

Kīlauea Volcano — Summit Outgassing

Outgassing from Halema‘uma‘u produced twin pillars that rose in the still morning air and merged into a towering cap above the summit of Kīlauea just after sunrise.

ocean entry pluming
June 8, 2018

Kīlauea Volcano — Kapoho Bay Laze

The Kapoho ocean entry (as of 6:30 a.m. HST), where the interaction of fissure 8 lavaand seawater

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Kīlauea lower East Rift Zone lava flows and fissures, June 8, 12:00...
June 8, 2018

Kīlauea LERZ lava flows and fissures, June 8, 12:00 p.m.

Map as of 12:00 p.m. (noon) HST, June 8, 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.

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Amber waves of … Pele's hair?...
October 20, 2016

The lava lake within Halema‘uma‘u Crater at the summit of Kīlauea Volcano is creating a scene remindful of a messy barbershop floor, except that it's acres and acres wide rather than a few square feet. The ground downwind of the crater is strewn with Pele's hair, and it is almost impossible to avoid stepping on it.

More reminders why the Halema‘uma‘u Crater area is closed...
October 20, 2016

More reminders why the Halema‘uma‘u Crater area is closed

A brief overflow of Kīlauea's summit lava lake on October 15...
October 17, 2016

A brief overflow of Kīlauea's summit lava lake on October 15

2006 Kīholo Bay earthquakes spur monitoring improvements...
October 13, 2016

Ten years ago shortly after 7:00 a.m., HST, on Sunday, October 15, 2006, two damaging earthquakes struck off the northwest coast of the Island of Hawai‘i—a magnitude-6.7 earthquake beneath Kīholo Bay and a magnitude-6.0 earthquake offshore of Māhukona.

How big is that earthquake? Why magnitudes sometimes change...
October 6, 2016

Characterizing earthquakes is one of the most important activities we do at the USGS Hawaiian Volcano Observatory (HVO). Seismicity helps us monitor the "pulse" of volcanoes and can be a first indication of an impending eruption.

Typical spattering at the summit lava lake within Halema‘uma‘u Crat...
October 5, 2016

Typical spattering at the summit lava lake within Halema‘uma‘u Crater

aerial photograph of steaming & smoking lava lake. Orange lava is visible through cracks & spatter in the lake's black crust.
October 4, 2016

Video release: New video footage of Kīlauea Volcano’s summit lava lake is now available as b-roll to news media outlets.

This video shows spattering in two locations of Kīlauea's summit la...
October 3, 2016

Continued spattering in Kīlauea's summit lava lake

KAMAKAIA Hills: what are they and why are they there?...
September 29, 2016

Visitors to the Jaggar Museum and Ka‘ū Desert in Hawai‘i Volcanoes National Park, struck by the appearance of three dark, symmetrical volcanic cones on the western slope of Kīlauea Volcano, often ask "what are they?" and "why are they there?"