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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Kamoamoa Eruption...
March 9, 2011

Map showing the extent of the active flows of the Kamoamoa eruption, which started on March 5, 2011.

Image: July 2007 Eruption--Quarry flow near-view map: July 27, 2010
February 4, 2011

Map showing a close-up view of flow field expansion over the past few days.

July 2007 Eruption—Flow Field Map...
February 4, 2011

Map showing the extent of the "July 2007 eruption", or Episode 58, flow field relative to surrounding communities.

Halema‘uma‘u Vent Map...
February 1, 2010

Map showing the location of the Halemaʻumaʻu Overlook vent, and subsequent closures due to the eruption.

Aerial view of Pu‘u ‘Ō‘ō and vicinity...
November 1, 2009

Aerial view of Puʻu ʻŌʻō and surrounding features. 

Episode 56 Map (with Seismicity)...
June 20, 2007

Map shows activity from Episode 56.

Map of flows from Pu‘u ‘Ō‘ō: September 12, 2003...
September 12, 2003

Map shows lava flows erupted during 1983-present activity of Pu‘u ‘Ō‘ō and Kupaianaha. Red colors, both dark and light, denote Mother's Day flow, which began erupting on May 12, 2002 and continues to the present. The darkest color represents flows active since January 21, 2003.

Pu‘u ‘Ō‘ō cone and surroundings as of July 2000...
July 1, 2000

Pu‘u ‘Ō‘ō cone and surroundings as of July 2000, showing the area covered (mauve color) by lava since February 1997 during episode 55. Inside the crater of Pu‘u ‘Ō‘ō, the "trough" is the drained lava pond of September–October 1999. The central portion of the trough was briefly filled with lava in February 2000.

Pu‘u ‘Ō‘ō cone and surroundings as of March 2000...
March 1, 2000

Pu‘u ‘Ō‘ō cone and surroundings as of March 2000 showing the area covered (dark gray) by lava since February 1997 during episode 55. Inside the crater of Pu‘u ‘Ō‘ō, the "trough" is the drained lava pond of September–October 1999.

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Crater in the distance
June 17, 2018

Kīlauea Volcano — Halema`uma`u Crater

Inward slumping of the rim and walls of Halema‘uma‘u continues in response to ongoing subsidence at the summit. Sulfur dioxide emissions from the volcano's summit have dropped to levels that are about half those measured prior to the onset of the current episode of eruptive activity. This gas and very minor amounts of 

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View of lava channels
June 17, 2018

Kīlauea Volcano — Lava Channels

Occasionally, minor amounts of lava briefly spill over the lava channel levees. The spill overs are the shiny gray lobes along the channel margins. The lava flow field has been relatively stable with little change to its size and shape over the past few days. View to the east, with the 

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Aerial of Fissure 8
June 17, 2018

Kīlauea Volcano — Fissure 8

Morning overflight of Kīlauea Volcano's lower East Rift Zone by the Civil Air Patrol provides context for the location of the 

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Fissure activity and active ocean entry in Kīlauea Volcano's lower ...
June 16, 2018

Fissure activity and active ocean entry in Kīlauea's LERZ

Fissure 8 produces a lava fountain that pulses to heights of 55 to 60 m (185 to 200 ft). Spattering has built a cinder cone that partially encircles fissure 8, now 51 m (170 ft) tall at its highest point. The steam in the foreground is the result of heavy morning rain falling on warm (not hot) tephra (lava fragments).

Aerial of ocean entry
June 16, 2018

Kīlauea Volcano — Vacationland Ocean Entry

View of the active ocean entry in the vicinity of Vacationland. The interaction of hot lava with the ocean creates "laze", a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs, but that dissipates quickly with distance.

June 16, 2018

Kīlauea Volcano — Halema`uma`u Slumping

At Kīlauea Volcano's summit, inward slumping of the rim and walls of Halema‘uma‘u continues in response to ongoing subsidence. In this view to the southwest taken after this morning's event, a section of dark-colored wall rock (center left) has detached and dropped downward into the crater.

Aerial of ocean entries
June 16, 2018

Kīlauea Volcano — Kapoho Bay and Vacationland

Lava from fissure 8 travels about 13 km (8 mi) down a well established channel (visible in the center of the image) to an ocean entry at Kapoho. Lava is building a seaward delta that is approximately 320 acres in size. The view is to the southwest with the Kapoho area in the lower right. The white 

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Fissure 8 lava fountain
June 15, 2018

Kīlauea Volcano — Fissure 8 Lava Fountain

Photograph taken during helicopter overflight captures fissure 8 lava fountain.

Laze plumes from ocean entry of lava
June 15, 2018

Kīlauea Volcano — Ocean Entry

The ocean entry remains fairly broad with a white steam/laze plume blowing onshore. USGS image taken June 15, 2018.

View of a spatter cone
June 15, 2018

Kīlauea Volcano — Spatter Cone Building

Lava fountains from Fissure 8 reach heights of 200 ft overnight. The cinder and spatter cone that is building around

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Photo of the upper portion of the "firehose" taken with a telephoto...
February 8, 2017

"Firehose flow" visible from public lava viewing area

Kīlauea is home to America's first volcano observatory...
February 2, 2017

A brief history of America's first volcano observatory—the Hawaiian Volcano Observatory (HVO).

The entire section of the sea cliff that was seaward of the hot cra...
February 1, 2017

Crack above Kīlauea's ocean entry has widened, increasing instability of sea cliff

At Kīlauea's ocean entry on Jan. 28 and 29, the interaction of molt...
January 30, 2017

Ground crack at Kīlauea ocean entry is cause for concern

This video shows a wider view of the open lava stream at the ocean ...
January 28, 2017

Open lava stream continues at ocean entry

Exploring USGS volcano observatories—Part 4: Yellowstone ...
January 26, 2017

Hawai‘i Island's 2017 Volcano Awareness Month is almost over, and our Volcano Watch series about U.S. Geological Survey (USGS) volcano observatories and their connections to Hawaii is also coming to an end. This week, we visit the observatory that monitors a volcano that produced some of the largest eruptions known on Earth—Yellowstone!

A close up of the lava stream pouring out of the tube and directly ...
January 25, 2017

Lava continues to stream out of tube at Kamokuna ocean entry

The ups and downs of Kīlauea Volcano's summit lava lake...
January 24, 2017

The ups and downs of Kīlauea Volcano's summit lava lake

Exploring USGS volcano observatories—Part 3: California...
January 19, 2017

This month, our Volcano Watch articles are exploring U.S. Geological Survey (USGS) volcano observatories and their connections to Hawai‘i. This week: California, here we come!

Rising summit lava lake level improves views of spattering...
January 19, 2017

Rising summit lava lake level improves views of spattering

In places, the dark-colored veneer of lava, or bathtub rings, have ...
January 15, 2017

Lower level of Kīlauea's summit lava lake exposes vent wall