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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Kīlauea East Rift Zone Eruption Map: October 25, 2011...
October 25, 2011

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.

Pu‘u ‘Ō‘ō: October 25, 2011...
October 25, 2011

Map showing Pu‘u ‘Ō‘ō and the extent of nearby lava flows.

Pu‘u ‘Ō‘ō...
September 22, 2011

Map showing the current configuration of Pu‘u ‘Ō‘ō.

Kīlauea East Rift Zone Eruption Map...
September 22, 2011

Map showing the extent of lava flows erupted during Kīlauea's ongoing east rift zone eruption.

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.

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Color photograph of steam vents
September 23, 2020

Wahinekapu (Steaming Bluff) and the Steam Vents area

The weather was overcast during an overflight of Kīlauea's summit on September 23, 2020. This view shows Wahinekapu (Steaming Bluff) and the Steam Vents area within Hawai‘i Volcanoes National Park. Extensive cracks in the area allow heated groundwater to escape from underground. Cracks reach up to 63 degrees Celsius (145 degrees Fahrenheit), preventing trees from growing.

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Photograph of scientists surveying caldera
September 23, 2020

Kīlauea summit gravity survey - September 23, 2020

On September 23, 2020, Hawaiian Volcano Observatory geophysicists and a geologist conducted a gravity survey of Kīlauea summit, as part of HVO's regular monitoring program. In this photo, scientists are carrying survey equipment westward along the remnants of the Halema‘uma‘u Trail on the down-dropped block of Kīlauea caldera. The fissure from the 1954 eruption can be seen

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Photograph of scientists surveying caldera
September 23, 2020

Kīlauea summit gravity survey - September 23, 2020

During a gravity survey, HVO scientists measure the relative strength of gravity (gravimeter, bottom left corner of photo) between benchmarks. High-precision vertical positions from kinematic Global Positioning System (GPS, tripod and antenna middle of photo) help correct the gravity measurement for the effects of elevation changes. The south sulfur banks, exposed during

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Photograph of gravimeter in caldera
September 23, 2020

Kīlauea summit gravity survey - September 23, 2020

A gravimeter makes a measurement at a benchmark situated among lava flows erupted in 1919. The strength of gravity varies with both elevation and the amount of mass beneath the instrument. Changes in mass can indicate changes in the amount of magma entering Kīlauea's magma reservoirs. USGS photo by A. Flinders.

Photograph of scientist surveying gravity in caldera
September 23, 2020

Kīlauea summit gravity survey - September 23, 2020

An HVO geophysicist takes a gravity measurement at a benchmark near a continuous gravimeter (inside hutch). The continuous gravimeter takes gravity measurements once per second and relays the data via radio back to HVO. During the gravity survey on September 23, 2020, HVO scientists took measurements at multiple locations on the floor of Kīlauea caldera. By comparing the

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September 23, 2020

Views of Kīlauea's growing summit water lake

A helicopter overflight on September 23, 2020, provided airborne views of the water lake at the summit of Kīlauea Volcano. Visual and thermal images collected during the overflight are used for mapping the slowly enlarging lake. A segment of the video shows the remains of Crater Rim Drive, a portion of which collapsed during the 2018 summit activity. USGS video by M.

September 18, 2020

Kīlauea Volcano summit water lake color zones on September 18, 2020

The color zones on the lake surface shift from minute to minute. This video shows how the color zones were creating a large swirl in the lake center. USGS video by M. Patrick.

Color photograph of volcanic lake
September 18, 2020

Color variations at Kīlauea's summit water lake - 09/18/2020

Color variations are common at Kīlauea's summit water lake, and are usually dominated by tan and brown hues. Today, the interaction between different color zones produced a large swirl in the center of the lake.

Color map of camera network coverage
September 17, 2020

Map of the USGS Hawaiian Volcano Observatory’s current camera network

Map of the USGS Hawaiian Volcano Observatory’s current camera network coverage.   Lava-flow hazard zone 1 is outlined in yellow.   Color-shaded areas are visible to at least one camera in the current network.  We would like to expand the network so that it covers the grey-shaded areas in zone 1 as well.  If your property has a good view of unshaded areas in zone 1, and you

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Last 24 Hours - Live Panorama of Kīlauea Caldera - [KEcam]
September 9, 2020

Last 24 Hours - Live Panorama of Kīlauea Caldera - [KEcam]

Last 24 Hours - Live Panorama of Kīlauea Caldera - East Wide Angle from HVO Observation Tower [KEcam].

Disclaimer: The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of incandescence or other lights. Thermal webcams record heat rather than light and get better views through volcanic gas. At times, clouds and rain obscure

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Live Panorama of Puʻu ʻŌʻō East Flank from East of Puʻu ʻŌʻō [PEcam]
September 9, 2020

Last 24 Hours - Live Panorama of Puʻu ʻŌʻō East Flank [PEcam]

Last 24 Hours - Live Panorama of Puʻu ʻŌʻō East Flank from East of Puʻu ʻŌʻō [PEcam].

This image is from a temporary research camera positioned northeast of Puʻu ʻŌʻō, on Puʻu Halulu, looking southwest toward the northeast flank of Puʻu ʻŌʻō.

Disclaimer: The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of

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Last 24 Hours - Live Panorama of Puʻu ʻŌʻō West Flank [PWcam]
September 9, 2020

Last 24 Hours - Live Panorama of Puʻu ʻŌʻō West Flank [PWcam]

Last 24 Hours - Live Panorama of Puʻu ʻŌʻō West Flank from Puʻu ʻŌʻō [PWcam].

This image is from a research camera positioned on the northwest flank of Puʻu ʻŌʻō, looking southwest. On the morning of May 24, 2016, this camera was rotated to be pointed northeast to follow a new breakout on the east flank of Puʻu ʻŌʻō.

Disclaimer: The webcams are operational 24

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Several sets of new, small ground cracks observed on roads around L...
May 2, 2018

Several sets of new, small ground cracks observed on roads around Leilani Estates subdivision

USGS
May 2, 2018

The USGS Volcano Notification Service (VNS) is a free service that sends automatic notices (emails or texts) about volcanic activity at U.S. monitored volcanoes, including Hawaiian volcanoes. You can sign up to receive these notifications at http://volcanoes.usgs.gov/vns/.

Kīlauea summit lava lake level drops with deflation...
April 30, 2018

Kīlauea summit lava lake level drops with deflation

Repeated overflows onto the Halema‘uma‘u crater floor...
April 27, 2018

Repeated overflows onto the Halema‘uma‘u crater floor

Night view of Kīlauea Volcano’s summit lava lake from April 24, 2018
April 26, 2018

The past few weeks have been exciting for volcano watchers on the Island of Hawai‘i, especially for visitors to Hawai‘i Volcanoes National Park’s Jaggar Museum overlook, where views of the active summit lava lake within Halema‘uma‘u have been spectacular.

Continued overflows from the summit lava lake throughout the day...
April 25, 2018

Continued overflows from the summit lava lake throughout Wednesday

On Kīlauea Volcano's East Rift Zone, the perched lava pond in Pu‘u ...
April 23, 2018

Kīlauea summit lava lake overflows onto Halema‘uma‘u crater floor

This video shows an overview of the lake from the Halema‘uma‘u Crat...
April 22, 2018

Small overflows from Kīlauea's summit lava lake overnight

Overflows from the perched lava pond within west pit
April 19, 2018

In recent years, scientists have made significant improvements in developing sophisticated models of how volcanoes work. The ultimate goal is to develop models that allow us to forecast new activity.