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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March 14, 2011

Vent Collapse at Rim of Halema`uma`u

This video, also compiled from the Webcam on the rim of Halema‘uma‘u, shows the north rim of the vent collapsing.

March 14, 2011

Rim Collapsing into Lava Lake

This clip, captured by a video camera on the rim of Halema‘uma‘u to the southwest of the vent, shows a small slice of the western rim of the vent collapsing into the 

March 14, 2011

Lava Pouring From Fissure

Video showing lava pouring from the 

March 14, 2011

Lava Spattering Near Pu`u `Ō`ō

Video showing spattering from the most persistent vent of the day just west of the base of Pu‘u ‘Ō‘ō near the northeastern end of the 

March 14, 2011

Fissure Propagating

Video clip shot in front of the propagating fissure

March 14, 2011

Lava Spatter

Video of spattering near the front of the propagating 

Geologist samples layers formed by explosive eruptions at Kīlauea V...
March 11, 2011

Geologist samples layers formed by explosive eruptions at Kīlauea, ...

These tephra deposits are from the Kulanaokuaiki Tephra erupted from Kīlauea Volcano about 200 to 1000 C.E. The base of a lava flow overlying the tephra is just above the person's hand. This site is located near the base of Kīlauea's summit crater wall, directly below the USGS Hawaiian Volcano Observatory and NPS Jaggar Museum.

Eruption of low lava fountains from a fissure at Kilauea Volcano, Hawaii.
March 11, 2011

Fissure eruption of lava fountains, Kīlauea Volcano’s East Rift Zone

Fissure eruption of low lava fountains from Kīlauea Volcano’s East Rift Zone in 2007, Island of Hawaiʻi.

March 7, 2011

Lava Fountaining Adjacent to Nāpau Crater

Video showing low fountaining from the dominant vent, near the southwest end of the fissure system adjacent to Nāpau Crater, active during the day on March 7.

March 5, 2011

2-Day Draining of Halema`uma`u

This Quicktime movie shows a sequence taken from a thermal camera looking into the Halema‘uma‘u vent cavity between March 5 and 7. Tremor and deflation began at about 1:42pm on March 5, and this was shortly followed by draining of the Halema‘uma‘u lava lake. Before the draining, the lava lake was about 75 meters below the rim of the vent cavity, and about a day later the

March 5, 2011

Collapse of Pu‘u ‘Ō‘ō Crater Floor on March 5

Video showing the collapse of the Pu‘u ‘Ō‘ō crater floor on March 5. The video starts at 4 am and ends at 11 pm. The floor of the crater dropped about 115 meters (377 ft) in just a few hours.

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USGS
August 15, 2002

On May 22, 1960, the largest earthquake ever recorded struck the coast of western Chile. The magnitude of this quake was so great that it literally went off the Richter scale; seismologists estimate the effective magnitude at about 9.5. The amount of fault slip during this quake and the area over which the slip occurred were both staggering.

USGS
August 8, 2002

On May 22, 1960, the largest earthquake ever recorded struck the coast of western Chile. The magnitude of this quake was so great that it literally went off the Richter scale; seismologists estimate the effective magnitude at about 9.5. The amount of fault slip during this quake and the area over which the slip occurred were both staggering.

lava bench, showing lava entries on east side of leading tip of bench.
August 1, 2002

The past two weeks have been exceptional for viewers of Kilauea's lava flows. Both colorful and convenient, the flows have drawn visitors to the island and attracted many residents as well. How did this happen?

USGS science for a changing world logo
July 30, 2002

Lava flows from the Pu`u `O`o vent on the east rift zone of Kilauea Volcano in Hawaii are entering the sea and are rapidly adding new land to the coast, according to the U.S. Geological Survey’s Hawaiian Volcano Observatory. The USGS Web site http://hvo.wr.usgs.gov/kilauea/update/ features near real time lava flow updates as well as photographs.

USGS
July 30, 2002

USGS Web Site Features Daily Lava Flow Updates and Photographs

Lava flows from the Pu`u `O`o vent on the east rift zone of Kilauea Volcano in Hawaii are entering the sea and are rapidly adding new land to the coast, according to the U.S. Geological Survey’s Hawaiian Volcano Observatory.

 Lava cascades down sea cliff and moves across bench
July 25, 2002

"The only constant is change" is an adage that certainly applies to Kīlauea Volcano. Over the past weeks volcano watchers have been treated to views of incandescent lava patches high above the coastal flats, spectacular streams of lava cascading down cliffs, lava-induced forest fires, and surface lava toes, lobes and rivulets edging toward the sea.

USGS
July 18, 2002

In early November 2000, the largest earthquake to strike the Big Island in more than a decade occurred, yet no one, not even seismologists, noticed it. This earthquake was not located a great distance offshore; indeed, part of the fault that slipped lies beneath the Chain of Craters Road where it approaches the currently active lava flow. So why was this quake not felt?

USGS
July 11, 2002

For years, scientists have tried to understand what causes earthquakes. They have recorded, catalogued, and analyzed them.

USGS
July 3, 2002

Hawaiian volcanoes are rich in excitement, beauty, and challenge, but they're not awash in mineral resources. How is it, then, that Kīlauea has a "golden pumice?"

USGS
June 27, 2002

Many of us look at a landscape and wonder how it got that way and others wonder how they can make money off it even if they don't use Arthur Anderson as an accountant. Unencumbered by modern profit margins and investors, Hawaiian stories reflect just their observations and thoughts about the origin of their island home.

USGS
June 20, 2002

Pele has been restless lately-she has changed her mood twice since late last year.

USGS
June 13, 2002

When lava flows from an erupting vent or from an active lava tube, scientists face the challenge of determining, or forecasting, which areas are likely to be covered by lava in the next few hours to days.