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.

States L2 Landing Page Tabs

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Glacial end moraine deposits on south flank of Mauna Kea, Hawai‘i...
July 11, 1988

Glacial end moraine deposits on south flank of Mauna Kea, Hawai‘i

Glacial end moraine deposits on south flank of Mauna Kea, Hawai‘i

Pu‘umaKAHAKOkanaka, northeast flank of Mauna Kea, Hawai‘i...
July 11, 1988

Pu‘umaKAHAKOkanaka, NE flank of Mauna Kea, Hawai‘i

12,398 ft elev according to USGS Geographic Names Information System

Upper south flank of Mauna Kea, Hawai‘i. Prominent cinder cone (low...
July 11, 1988

Upper south flank of Mauna Kea, Hawai‘i. Prominent cinder cone (low...

Pu‘u Keonehehe‘e and the two small cones immediately to the northwest (left) are among the youngest cones erupted on the volcano, as recent as about 4,000 years ago. The other cones in this view are part of the Laupahoehoe Volcanics, but much older, dating to 70,000 years ago. The light colored surface between the cones consists of glacial deposits with ages between 40,000

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Northeast flank Mauna Kea, Hawai‘i from about 5,200 ft to summit. P...
July 11, 1988

Northeast flank Mauna Kea, Hawai‘i from about 5,200 ft to summit. P...

The light colored lava flows in foreground are part of the older Laupahoehoe Volcanics, erupted between 70,000 to 13,000 years ago. one of the youngest cinder cones erupted by the volcano,

Tephra jet explosion, Kīlauea Volcano, Hawai‘i...
February 3, 1988

Tephra jet explosion, Kīlauea, Hawai‘i

Explosive interaction between lava and seawater blasts a tephra jet consisting of steam, hot water, black tephra, and molten fragments into the air. This explosion is directed primarily toward the sea, but many explosions also send a shower of lava more than 10 to 20 m inland. Tehpra jets are the most common type of lava-seawater explosion, and typically occur when an open

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Glowing lava flowing down a stream channel with tall rock banks.People watch from the bank tops.
March 31, 1987

Lava flow enters Queens Bath, Kilauea Volcano, 1987

Bystanders watch steam rising from Queens Bath as lava flow enters the water. Lava overran Highway 130 at 0748 Hawaii Standard Time on the same morning at the western margin of the Kapa'ahu flow. By the end of the day, Punalu'u heiau was overrun, and Queens Bath was filled with lava.

Photo taken from the air, looking down on red hot lava fountaining up from a vent, then running in red channels down a slope.
April 22, 1985

Aerial view of waning lava fountain, Kilauea Volcano, 1985

Aerial view, from the east, of waning lava fountain from Pu'u 'O'o on Hawai'i Island's Kilauea Volcano. Taken at the end of eruption episode 32. Pu'u 'O'o rose 209 meters above the pre-1983 surface (928 meters above sea level).

Image: Aerial View of Mauna Loa Volcano, Hawaii
January 9, 1985

Aerial View of Mauna Loa Volcano, Hawaii

USGS Hawaiian Volcano Observatory scientists monitor Mauna Loa, the largest active volcano on Earth. In this 1985 aerial photo, Mauna Loa looms above Kīlauea Volcano’s summit caldera (left center) and nearly obscures Hualālai in the far distance (upper right).

Attribution: Natural Hazards
Black and white maps of lava flow
December 31, 1984

Maps of Mauna Loa 1984 lava flows

Maps showing lava flow progression during the 1984 eruption of Mauna Loa. These maps were featured in the Hawai‘i Tribune-Herald newspaper on March 27, 1984 (top) and March 30, 1984 (bottom). 

Lava fountain 450 m (1,475 ft) high from Kīlauea Pu‘u ‘Ō‘ō eruption...
September 19, 1984

Lava fountain 450 m (1,475 ft) high from Kīlauea Pu‘u ‘Ō‘ō eruption...

Lava fragments ejected by lava fountains are called tephra, a general term for all fragments, regardless of size, that are blasted into the air by explosive activity. A variety of terms are also used to describe specific types of fragments, including Pele's hair, Pele's tears, scoria, spatter, bombs, and reticulite. Other terms are used to describe the size of fragments,

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Low lava fountains from 1984 Mauna Loa "2,900-m vents" signaled dec...
April 8, 1984

Low lava fountains from 1984 Mauna Loa "2,900-m vents" signaled dec...

Lava production from these "2,900-m vents" began to decrease in late March but declined most rapidly between April 7 and 9 from about 300,000 m3 per hour to less than 100,000 m3 per hour. Photo taken at 9:09 a.m.

Lava flows from the 1984 eruption of Mauna Loa loom above the town ...
April 4, 1984

Lava flows from the 1984 eruption of Mauna Loa loom above the town ...

Lava flows from the 1984 eruption of Mauna Loa loom above the town of Hilo. Photograph taken near the Hilo airport on April 4.

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USGS
September 1, 1995

The long-lived eruption on Kīlauea's East Rift Zone took a short break starting Tuesday, August 22. Before the pause in activity, we observed that the lava pond inside Pu'u 'O'o Crater was unusually deep (more than 310 feet below the rim).
 

USGS
August 25, 1995

A recent visitor to the Hawaiian Volcano Observatory was involved with the removal of abandoned vehicles from the area surrounding the Sand Hill cone in coastal Puna. He was puzzled by the location of an apparent volcanic vent so far away from the rift zone of Kīlauea.
 

USGS
August 18, 1995

The rapidly changing geology in the Hawaiian Islands has profound consequences for the plants and animals in Hawai'i on several time scales.

USGS
August 11, 1995

The eruption on Kīlauea's East Rift Zone continues with little change. Lava is erupting from two vents located on the south and west flanks of the Pu'u 'O'o cone. 

USGS
August 4, 1995

The mission of the U.S. Geological Survey's Hawaiian Volcano Observatory is to monitor the volcanoes of Hawaii, to study the geological processes associated with eruptive and seismic activities, and to inform the public of the results of our studies.

USGS
July 28, 1995

Soufriere Hills Volcano on the island of Montserrat in the Caribbean became active on July 18, 1995. This is the first eruption of the volcano in historic time.
 

USGS
July 21, 1995

For several weeks we have been fielding calls from anxious people in Kona asking about an imminent eruption of Hualālai Volcano.

Measuring how volcanoes move with satellites...
July 14, 1995

Last week we discussed the different land surveying techniques HVO scientists use to monitor the swelling and movement of active volcanoes.
 

USGS
July 7, 1995

The ground around an active volcano swells, deflates, or shifts as magma moves in and out of the volcano's underground plumbing system. The distribution and rate of ground deformation provides clues about processes occurring within the volcano.
 

USGS
June 30, 1995

Hawaii is a land of rugged beauty and untamed natural forces swathed in a beguiling gentleness that is unmatched anywhere else on Earth.
 

USGS
June 23, 1995

The formation of new islands invariably sparks the imagination. On June 6th a submarine eruption began at Metis Shoal in the Tonga Islands. A passing ship confirmed that an eruption was continuing on June 9th.
 

USGS
June 16, 1995

On Monday and Tuesday of this past week, large waves generated by a storm near New Zealand caused considerable damage on the west coast of Hawai'i, particularly in the town of Kailua