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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April 14, 2012

High lava stands at Halema‘uma‘u

The lava lake in Halema‘uma‘u has been at a relatively high level over the past week, and several rise-fall cycles (short term increases in lava level immediately followed by spattering and an abrupt drop) pushed the level even higher over the past day. This Quicktime movie is a timelapse sequence taken from the Halema‘uma‘u thermal camera, showing the rise-fall cycles and

April 13, 2012

Continued activity on coastal plain and lava pond in Pu‘u ‘Ō‘ō

A small lava pond, set within a collapse pit, has been active in the eastern portion of Pu‘u ‘Ō‘ō

"DI" tilt events measured at Kīlauea summit March 1-7, 2012. Deflat...
March 29, 2012

"DI" tilt events measured at Kīlauea summit Mar. 1-7, 2012. Deflati...

Tilt measured at the summit of Kīlauea during March 1-7, 2012, shows a series of U- and V-shaped DI events, with deflation indicated by downward tilt and inflation by upward tilt. Images from a thermal camera that overlooks the summit eruptive vent demonstrate how the lava level (noted by white dashed line), depicted by warmer colors, charges across tilt cycles. Tilt is

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Royal Gardens in Kīlauea's crosshairs again...
March 22, 2012

Royal Gardens in Kīlauea's crosshairs again

Lava flows creep through the Royal Gardens subdivision on February 24, 2012, slowly burying the few remaining forested kipuka.

Active pāhoehoe on the coastal plain of Kīlauea volcano, Hawai‘i....
March 8, 2012

Active pāhoehoe on the coastal plain of Kīlauea, Hawai‘i.

pāhoehoe flows were active on the coastal plain today, but extended only about 400 m (440 yards) out from the base of the pali. These flows have about 2.8 km (1.7 miles) more to travel to reach the ocean. Farther up the hill, on the steep lower portion of the pali, several active ‘A‘ā cascades are visible.

Mauna Loa looms behind HVO and Jaggar Museum...
March 6, 2012

Mauna Loa looms behind HVO and Jaggar Museum

The Hawaiian Volcano Observatory and Jaggar Museum, shown in this photo, sit atop the summit of Kīlauea Volcano. The snow-capped summit of Mauna Loa, nearly 10,000 feet higher than Kīlauea, looms in the background.

Mauna Loa looms behind HVO and Jaggar Museum...
March 6, 2012

Mauna Loa looms behind HVO and Jaggar Museum

The Hawaiian Volcano Observatory and Jaggar Museum, shown in this photo, sit atop the summit of Kīlauea Volcano. The snow-capped summit of Mauna Loa, nearly 10,000 feet higher than Kīlauea, looms in the background.

February 8, 2012

View of swiftly-moving lava entering the tube system, and active break

This Quicktime movie begins with a view of lava in Pu‘u ‘Ō‘ō made possible by a small collapse pit. The lava is swiftly moving towards the northeast, and this represents lava within Pu‘u ‘Ō‘ō crater that is entering the lava tube system which, in turn, feeds the active flow field. The movie continues with a flight along this active lava tube system, with the trace of the

Erupting vents on Mauna Loa's northeast rift zone near Pu‘u ‘Ula‘ul...
February 6, 2012

Erupting vents on Mauna Loa's northERZ near Pu‘u ‘Ula‘ula (Red Hill...

Erupting vents on Mauna Loa's northeast rift zone near Pu‘u ‘Ula‘ula (Red Hill) on March 25, 1984, sent massive ‘A‘ā lava flows down the rift toward Kulani.

Volcano scientist presents two talks about Kīlauea's ongoing erupti...
February 6, 2012

Volcano scientist presents two talks about Kīlauea's ongoing eruption

This image of a dusty plume produced by rocks collapsing from the wall of the eruptive vent within Kīlauea Volcano's Halema‘uma‘u Crater was captured by a USGS time-lapse camera on December 21, 2011. Vigorous spattering on the lava lake deep within the vent created the orange glow visible at the base of the plume.

January 26, 2012

Video of spattering in Halema‘uma‘u lava lake

This Quicktime movie shows vigorous spattering along the south margin of the Halema‘uma‘u lava lake. Lava, upwelling in the northern portion of the lake (out of view), slowly migrates to this southern margin where it sinks back into the conduit.

Kīlauea East Rift Zone Eruption Map: December 27, 2011...
December 28, 2011

Kīlauea ERZ Eruption Map: Dec. 27, 2012

Map showing the extent of lava flows erupted during Kīlauea's ongoing east rift zone eruption and labeled with the years in which they were active. Episodes 1-48b (1983-1986) is shown in dark gray; Episodes 48c-49 (1986-1992) is pale yellow; Episodes 50-53 and 55 (1992-2007) is tan; Episode 54 (1997) is yellow; Episode 58 (2007-2011) is pale orange; the episode 59 Kamoamoa

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USGS
February 6, 2003

Little more than a mile down the Chain of Craters Road from Crater Rim Drive, a large tract of bare ground suddenly appears on the right, and curious travelers wonder why it is so open. But there's no place to stop, so they move on, and the Puhimau thermal area is quickly forgotten.

USGS
January 30, 2003

For more than twenty years, Kīlauea has been erupting almost continuously. In the early years, the eruption alternated between dramatic fountains and periods of repose. For the last 16 years, however, Kīlauea has settled into a stable routine-lava quietly flows out of flank vents on Pu`u `O`o cone into lava tubes, which wind sinuously toward the ocean.

USGS
January 23, 2003

The inflation of Mauna Loa Volcano that started last year appears to be slowing down. From May 2002 until very recently, continuously recording instruments spanning Moku`aweoweo, Mauna Loa's caldera, showed that the summit area was extending and rising, indicating that magma was pressurizing a reservoir beneath the surface.

Drawing depicts Pu`u `O`o with a lava fountain, whose flow went underground through a lava tube, then poured into the ocean
January 16, 2003

On January 4, as lava flowed from the Pu`u `O`o cone 11 km (7 miles) to the south shoreline of Kilauea Volcano, the staff of the Hawaiian Volcano Observatory welcomed the public to our Open House in the Park, celebrating the twentieth anniversary of the eruption.