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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Satellite image shows Kīlauea's activity from summit to east rift z...
February 3, 2014

Satellite image shows Kīlauea's activity from summit to ERZ

This image was acquired by the Earth Observing 1 satellite's Advanced Land Imager sensor on February 2, and shows Kīlauea's summit and east rift zone. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Active lava is shown by the bright red pixels, present at the summit - in the lava lake at Halema‘uma‘u

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February 3, 2014

Time-lapse sequence of Halema‘uma‘u degassing plume

This Quicktime movie is a time-lapse sequence from a camera in the HVO observation tower, and shows one week of activity at Kīlauea's summit vent in Halema‘uma‘u Crater. The sequence starts on February 3 at 12:01 am and ends on February 9 at 11:59 pm. The continuously active lava lake produces a degassing plume that is normally carried by the tradewinds to the southwest (

February 1, 2014

Summit Lava Lake Activity

This Quicktime movie shows typical activity at the summit lava lake. Spattering at the summit lava lake has been common over the past several years, and today's winds provided a clear view of the primary spatter area on the lake margin. The lava lake today was about 50 m (160 ft) below the floor of Halema‘uma‘u Crater. The spattering is driven by bursting gas bubbles, with

Preview image for video: Winter storm deposits snow on Mauna Loa's ...
January 29, 2014

Preview image: Winter storm deposits snow on Mauna Loa's summit

Preview image for video: This Quicktime video shows a time-lapse sequence spanning from dawn to dusk on Tuesday, January 28, using images collected by our webcam near the summit of Mauna Loa Volcano (13,680 ft above sea level). The dawn is sunny with clear views across the summit caldera (Moku‘āweoweo), but this clear weather soon deteriorates into thick clouds and steady

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Preview image for video: Winter storm deposits snow on Mauna Loa's ...
January 29, 2014

Preview image: Winter storm deposits snow on Mauna Loa's summit

Preview image for video: This Quicktime video shows a time-lapse sequence spanning from dawn to dusk on Tuesday, January 28, using images collected by our webcam near the summit of Mauna Loa Volcano (13,680 ft above sea level). The dawn is sunny with clear views across the summit caldera (Moku‘āweoweo), but this clear weather soon deteriorates into thick clouds and steady

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January 28, 2014

Winter storm deposits snow on Mauna Loa's summit

This Quicktime video shows a time-lapse sequence spanning from dawn to dusk on Tuesday, January 28, using images collected by our webcam near the summit of Mauna Loa Volcano (13,680 ft above sea level). The dawn is sunny with clear views across the summit caldera (Moku‘āweoweo), but this clear weather soon deteriorates into thick clouds and steady snowfall as a winter

January 24, 2014

Pu`u 'Ō`ō Lava Pond

This Quicktime movie shows a lava pond, about 15 m (50 ft) in diameter, on the east rim of Pu‘u ‘Ō‘ō. Several small spatter sources are active on the pond margin, and release gas from within the pond. Lava pond activity like this is common in Pu‘u ‘Ō‘ō.

January 24, 2014

Gas Piston in Lava Pond

This Quicktime movie shows weak gas pistoning in the lava pond on the east rim of Pu‘u ‘Ō‘ō. Gas pistoning is the cyclic buildup and release of gas within the pond, and is common in Pu‘u ‘Ō‘ō.

January 24, 2014

Gas Pistoning and Spattering

This Quicktime movie shows some of the spattering associated with the gas pistoning, in which the spattering acts as an outlet for gas accumulating in the pond. Note how the crust in the center of the pond is fluctuating. Lava pond activity and gas pistoning are common in Pu‘u ‘Ō‘ō.

January 22, 2014

Lava lake spattering at Halema‘uma‘u Crater

The lava lake in the Overlook crater, within Halema‘uma‘u Crater at Kīlauea's summit, undergoes frequent periods of spattering. The spattering is normally at the lake margins, and the surface crust often flows towards, and is consumed at, the spattering source. Large bubbles bursting at the surface drive the spattering activity, as shown occasionally by large spherical

January 20, 2014

Lava Lake Spattering at Halema'uma'u Crater

21 January 2014 Lava Lake Spattering at Halema'uma'u Crater The lava lake in the Overlook crater, within Halema'uma'u Crater at Kilauea's summit, undergoes frequent periods of spattering. The spattering is normally at the lake margins, and the surface crust often flows towards, and is consumed at, the spattering source. Large bubbles bursting at the surface drive the

Mauna Loa: How well do you know the volcano in your backyard?...
January 8, 2014

Mauna Loa: How well do you know the volcano in your backyard?

Erupting vents on Mauna Loa's Northeast Rift Zone near Pu‘u‘Ula‘ula (Red Hill) on Mar. 25, 1984—just hours after the eruption began—sent massive ‘A‘ā lava flows moving toward Hilo at 4 miles per hour. By the time the eruption ended on April 15, lava flows had reached to within four miles of Hilo city limits. USGS photo.

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photo of lava
October 17, 2003

Pu`u `O`o crater and hissing hornitos

USGS
October 16, 2003

We're accustomed to seeing news stories about natural disasters around the world where either national or international aid agencies come to the rescue to aid victims. In Hawai'i, the County Civil Defense and Red Cross Agencies are activated in these situations.

USGS
October 9, 2003

A recent Hollywood disaster movie depicts a scenario in which the earth's magnetic core has stopped spinning, causing the planet's electromagnetic field to rapidly deteriorate. A series of magnetic anomalies disrupts life and threatens to destroy the earth.

Lava spattering from the vent
October 3, 2003

Lava spattering from the west vent in West Gap Pit of Pu‘u ‘Ō‘ō, Hawai‘i.

USGS
October 2, 2003

A recent Hollywood disaster movie depicts a scenario in which the earth's Geologists on the Big Island know that they are among the privileged few in their profession to work around active lava flows. Yet after a few years in Hawai`i, many are overcome by a secret longing for the more varied rocks of the mainland.

USGS
September 25, 2003

Good red wine improves with age. So, often, does research. With time, more information is gathered, more thought given, and more sophisticated analysis attempted. The end result may be not only greater accuracy but even elegance.

photo of lava
September 19, 2003

Breakouts continue on the flow field

USGS
September 18, 2003

On May 10, 2003, Anatahan Volcano in the Northern Marianas Islands awoke for the first time in reported history and sent eruption cloud to heights reaching 10 km (approximately 6 miles). The unrest heralded by this event -- described in Volcano Watch reports of May 15 and June 26 -- continues.

Lava drains back into the East Pond Vent, Pu‘u ‘Ō‘ō, Hawai‘i...
September 12, 2003

Lava drains back into the East Pond Vent, Pu‘u ‘Ō‘ō, Hawai‘i.