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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August 22, 2014

Southern Front of Lava Flow from Pu`u `Ō`ō

This Quicktime movie shows the southern front of the June 27th lava flow from Pu‘u ‘Ō‘ō. Lava here has flowed into a deep crack on Kīlauea's East Rift Zone. The line of steam extending out from the visible flow margin at the surface is inferred to be caused by lava deep within the crack. This video also shows the lava stream beneath the flow surface, supplied by a lava

Kīlauea's east rift zone flow field...
August 12, 2014

Kīlauea's ERZ flow field

Map showing the June 27th flow at Pu‘u ‘Ō‘ō in Kīlauea's East Rift Zone in relation to the eastern part of the Island of Hawai‘i as of August 12, 2014. The area of the flow as mapped on August 6 is shown in pink, while widening and advancement of the flow as of August 12 is shown in red. The recently active (2013-2014) Kahauale‘a flows are shown in orange, and all older

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Kīlauea's east rift zone flow field...
August 6, 2014

Kīlauea's ERZ flow field

Map showing the June 27th flow at Pu‘u ‘Ō‘ō in Kīlauea's East Rift Zone in relation to the eastern part of the Island of Hawai‘i as of August 6, 2014. The area of the flow as mapped on July 29 is shown in pink, while widening and advancement of the flow as of August 6 is shown in red. The recently active (2013-2014) Kahauale‘a flows are shown in orange, and all older lava

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Kīlauea's east rift zone flow field...
July 29, 2014

Kīlauea's ERZ flow field

Map showing the June 27th flow at Pu‘u ‘Ō‘ō in Kīlauea's East Rift Zone. The area of the flow as mapped on July 18 is shown in pink, while widening of the flow as of July 29 is shown in red. Older lava flows are distinguished by color: episodes 1-48b flows (1983-1986) are shown in gray; episodes 48c-49 flows (1986-1992) are yellow; episodes 50-55 flows (1992-2007) are tan

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July 23, 2014

Lava Lake Explosive Event

Movie from a webcam positioned on the rim of Halema‘uma‘u, directly above the summit lava lake, showing the July 23 explosive event. The movie images were captured at 1 frame/second, and the playback speed is 12 frames/second.

July 23, 2014

Rockfall Causing Explosive Event

Movie from a webcam positioned in the observation tower at the Hawaiian Volcano Observatory, next to Jaggar Museum, near the summit of Kīlauea, showing the July 23 explosive event. The movie images were captured at 2 frame/second, and the playback speed is 12 frames/second.

Map of June 27 breakout in Kīlauea's ERZ...
June 30, 2014

Map of June 27 breakout in Kīlauea's ERZ

Map showing the June 27, 2014, breakout at Pu‘u ‘Ō‘ō in Kīlauea's East Rift Zone. The area of the new flow as mapped on June 27 is shown in pink, while widening of the flow as June 30 is shown in red. Older lava flows are distinguished by color: episodes 1-48b flows (1983-1986) are shown in gray; episodes 48c-49 flows (1986-1992) are yellow; episodes 50-55 flows (1992-2007

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Small-scale map of Kīlauea's ERZ flow field...
June 30, 2014

Small-scale map of Kīlauea's ERZ flow field

Map showing the June 27, 2014, breakout and the Kahauale‘a 2 flow in relation to the eastern part of the Island of Hawai‘i as of June 30, 2014. The Kahauale‘a 2 flow (pale orange) is no longer active — it was beheaded when the lava level at Pu‘u ‘Ō‘ō dropped with the onset of the June 27 breakout. The area of the new flow as mapped on June 27 is shown in pink, while

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June 30, 2014

Activity in the lava pond in the northeast portion of Pu‘u ‘Ō‘ō

This Quicktime movie shows activity in the lava pond in the northeast portion of Pu‘u ‘Ō‘ō crater. A lava pond has been here for months, but it enlarged considerably during the June 27 breakout as the lava level in the pond dropped.

Small-scale map of Kīlauea's ERZ flow field...
June 27, 2014

Small-scale map of Kīlauea's ERZ flow field

Map showing the Kahauale‘a 2 flow (pink) in relation to the eastern part of the Island of Hawai‘i as of June 17, 2014. The most distant active Kahauale‘a 2 lava flows were 7.1 km (4.4 miles) straight-line distance northeast of Pu‘u ‘Ō‘ō. A new breakout (shown in red) started today on the northeast flank of Pu‘u ‘Ō‘ō and is sending new lava flows toward the northeast. Time

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June 27, 2014

Swiftly moving lava in the channelized flow

This Quicktime movie shows the swiftly moving lava in the channelized flow.

June 27, 2014

Lava Chunk

This Quicktime movie shows a large chunk of lava being pushed by the current in the channel.

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USGS
January 15, 2004

Since the beginning of the New Year, much attention has been focused on Earth's celestial neighbor, the planet Mars. Though the main goal of the current missions is to find evidence for past Martian life, we volcanologists are also watching developments on Mars with great enthusiasm.

USGS
January 8, 2004

Lava flows stopped pouring into the sea on the south shoreline of Kīlauea 6 months ago. Few imagined that it would mark the beginning of a progressive collapse of the main lava tube system and the slow retreat of lava from the coast back to its source — the Pu`u `O`o cone.

photo of lava
December 31, 2003

A murky New Year's Eve on the upper flow field

USGS
December 31, 2003

Arnold Okamura retired on January 3 after more than 42 years with the U.S. Geological Survey, 39 at the Hawaiian Volcano Observatory. His tenure at HVO is the longest of any staff member since the observatory was founded in 1912. Arnold had been Deputy Scientist-in-Charge (DSIC) for the past 11.5 years.

photo of lava
December 27, 2003

View of Pu`u `O`o from Pu`u Huluhulu

photo of lava
December 24, 2003

Christmas Eve from Pu`u `O`o to Cookie Monster

USGS
December 24, 2003

The Volcano Watch of December 19, 2002 detailed an oceanographic cruise studying the 1877 submarine eruption of Mauna Loa in Kealakekua Bay. Only two weeks ago, another group of scientists returned to the bay's calm, azure water to continue the study of the eruption.

USGS
December 18, 2003

Despite its notoriety as Hawai`i's youngest volcano, Lo`ihi remains a submarine mystery for most of us. This is because fieldwork there is limited to manned or remotely operated vehicles. At its shallowest depth, Lo`ihi is still 980 m (3,200 ft) below sea level.

USGS
December 11, 2003

HVO is proud to report that Elliot T. Endo, long-time HVO associate and 1961 graduate of Hilo High School, has been named Scientist-in-Charge of the U.S. Geological Survey's Cascades Volcano Observatory (CVO) in Vancouver, Washington. Elliot is the son of Kazuo and Yayoi Endo of `Ainako.

USGS
December 4, 2003

Are you still trying to find that special holiday gift for the volcanologist in your life? If so, you've come to the right place. The mini-UV spectrometer is an exciting new tool that is revolutionizing the way we measure the release of gases trapped in magma as it rises up to the surface from deep underground.