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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Small-scale map of Kīlauea's East Rift Zone lava flow...
January 30, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to lower Puna. 

Large-scale map of Kīlauea's East Rift Zone lava flow...
January 30, 2015

This large-scale map shows the distal part of Kīlauea’s active East Rift Zone lava flow in relation to nearby Puna communities.

Small-scale map of Kīlauea's East Rift Zone lava flow...
January 29, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to lower Puna. 

Large-scale map of Kīlauea's East Rift Zone lava flow...
January 29, 2015

This large-scale map shows the distal part of Kīlauea’s active East Rift Zone lava flow in relation to nearby Puna communities.

Satellite image of area around front of Kīlauea's East Rift Zone la...
January 29, 2015

This large-scale map uses a satellite image acquired in March 2014 (provided by Digital Globe) as a base to show the area around the front of Kīlauea’s active East Rift Zone lava flow. 

Satellite image of area around front of Kīlauea's East Rift Zone la...
January 26, 2015

This large-scale map uses a satellite image acquired in March 2014 (provided by Digital Globe) as a base to show the area around the front of Kīlauea’s active East Rift Zone lava flow.

Small-scale map of Kīlauea's East Rift Zone lava flow...
January 22, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to lower Puna. 

Large-scale map of Kīlauea's East Rift Zone lava flow...
January 22, 2015

This large-scale map shows the distal part of Kīlauea’s active East Rift Zone lava flow in relation to nearby Puna communities. 

Thermal overlay of distal part of flow field...
January 22, 2015

This map overlays a georegistered mosaic of thermal images collected during a helicopter overflight of the distal part of Kīlauea’s active East Rift Zone lava flow on January 22 at about 9:15 AM. 

Satellite image of area around front of Kīlauea's East Rift Zone la...
January 22, 2015

This large-scale map uses a satellite image acquired in March 2014 (provided by Digital Globe) as a base to show the area around the front of Kīlauea’s active East Rift Zone lava flow.

Map of area around front of Kīlauea's East Rift Zone lava flow...
January 19, 2015

This large-scale map uses a satellite image acquired in March 2014 (provided by Digital Globe) as a base to show the area around the front of Kīlauea’s active East Rift Zone lava flow. 

Large-scale map of Kīlauea's East Rift Zone lava flow...
January 13, 2015

This large-scale map shows the distal part of Kīlauea’s active East Rift Zone lava flow in relation to nearby Puna communities. 

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January 2, 2021

Lava Entering Lava Lake in Halem'uma'u (Dec 31, 2020 - Jan 2, 2021)

These videos show an increase in the surface activity where lava is entering the lake. 

  • Clip 1: Lava from Halema‘uma‘u west vents entering the lava lake on December 31, 2020, at approximately 10 a.m. HST.
  • Clip 2: Lava from Halema‘uma‘u west vents entering the lava lake on January 2, 2021, at approximately 11 p.m. HST.

Kīlauea Volcano, U.S

Color photograph of lava lake and volcanic vent
January 2, 2021

Kīlauea summit eruption - Jan. 2, 2021, at 7 a.m. HST

View of the west vent area and lava lake in Halema‘uma‘u, at Kīlauea Volcano's summit. USGS photo by K. Lynn.

Color photograph of lava lake and volcanic vent
January 2, 2021

Kīlauea summit eruption - Jan. 2, 2021, at 7:30 a.m. HST

Telephoto photograph of the west vent area and lava lake in Halema‘uma‘u, at Kīlauea Volcano's summit. USGS photo by K. Lynn.

January 1, 2021

Eruption and Lava Lake in Halema'uma'u (Jan 1, 2021)

Videos of the eruption and lava lake in Halema‘uma‘u on January 1, 2021.

  • Clip 1: Halema‘uma‘u west vents and lava entering the lava lake at approximately 5:30 p.m. HST.
  • Clip 2: Telephoto view of lava from Halema‘uma‘u west vents entering the lava lake at approximately 5 p.m. HST.
  • Clip 3: The lava lake overflows onto a lower edge along the
Color photograph of lava lake
January 1, 2021

Halema‘uma‘u lava lake beginning to perch

Over the past week, the lava lake in Halema‘uma‘u has developed a subtle levee around its perimeter that allows the lake to be slightly perched above its base, like a mesa. The levees grow from repeated small overflows, and the rafting and piling of pieces of surface crust that fuse together into a barrier that impounds the fluid lake. This is called a "perched" lava lake

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Color photograph of lava lake surface
January 1, 2021

Kīlauea eruption in Halema‘uma‘u on Jan. 1, 2021

Kīlauea eruption in Halema‘uma‘u on Jan. 1, 2021. The channel-like feature remains visible on the lava lake surface within Halemaʻumaʻu crater at Kīlauea Volcano's summit. This feature originates from the influx of lava from the western fissure. USGS photo by M. Patrick. 

Color photograph of road damaged by earthquakes
January 1, 2021

Scientists deploy temporary seismic instruments at Kīlauea on 1/1/2021

On January 1, 2021, with permission from Hawai‘i Volcanoes National Park, HVO researchers set up temporary seismic instruments around Halema‘uma‘u crater to collect data that will help them learn more about how magma travels in the shallow magmatic plumbing system beneath Kīlauea Volcano. In this photo, the field crew hikes along a portion of Crater Rim Drive road that was

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Color photograph of lava lake crust
January 1, 2021

Kīlauea eruption in Halema‘uma‘u on Jan. 1, 2021

Kīlauea's summit lava lake in Halemaʻumaʻu is continually re-surfacing. Like the 2008-2018 lava lake, the current lava lake is exhibiting crustal foundering, when fragments of solidified lava crust on the surface break and sink back into the liquid portion.  USGS photo by M. Patrick. 

Color photograph of scientist installing instrument in field
January 1, 2021

Scientists deploy temporary seismic instruments at Kīlauea on 1/1/2021

Within an hour of the Kīlauea summit eruption starting on December 20, 2020, HVO's permanent seismic network detected a signal called volcanic tremor. This tremor signal has been continuous since that time, creating an uninterrupted signal that travels through the subsurface as magma degasses and erupts from vents to fill a lava lake at the summit.  This photo shows a an

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Color photograph of lava lake crust
January 1, 2021

Kīlauea eruption in Halema‘uma‘u on Jan. 1, 2021

Kīlauea's summit lava lake in Halemaʻumaʻu continues to re-surface. This process is called crustal foundering, in which pieces of solidified lava crust on the surface of the lava lake break and sink back into the liquid portion. USGS photo by M. Patrick. 

Color photograph of scientist installing instrument in field
January 1, 2021

Scientists deploy temporary seismic instruments at Kīlauea on 1/1/2021

With the onset of the eruption at Kīlauea summit on December 20, 2020, the HVO monitoring network has been recording volcanic tremor, a signal that travels through the subsurface as magma degasses and erupts from vents to fill a lava lake at the summit. Since the signal is continuous, it can be used to track the migration and storage of magma in Kīlauea's shallow volcanic

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Color photograph of lava lake margin
January 1, 2021

Kīlauea eruption in Halema‘uma‘u on Jan. 1, 2021

The margins of the lava lake in Halema‘uma‘u are showing a subtle levee around the perimeter. The levees grow from repeated small overflows, and the rafting and piling of pieces of surface crust that fuse together into a barrier that impounds the lake. This results in a "perched" lava lake, and this geometry has been common for lava lakes at Kīlauea's summit and rift zones

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Filter Total Items: 2,297
USGS
April 10, 2019

Digital database of the geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawaiʻi: USGS Data Series 1111 

USGS
April 10, 2019

HVO Scientist-in-Charge Tina Neal talked about the status of Kīlauea and Mauna Loa volcanoes.

 small amounts of sulfur dioxide
April 4, 2019

The end of Kīlauea's 2018 eruption this past September was accompanied by an enormous decrease in the amount of sulfur dioxide gas (SO2) emitted from the volcano. This has led to beautifully clear skies gracing the Island of Hawai‘i, particularly noticeable on the west side, where the volcanic pollution known as vog chronically collected in past years.

New outcrops make good geology
March 28, 2019

A good field geologist is an opportunist. Never content with what outcrops are available, she jumps at the chance to see another one, hoping that it will provide a better understanding to some question about what happened in the past.

USGS
March 27, 2019

On March 26, 2019, in response to reduced activity on the volcano, HVO lowered the Volcano Alert Level for Kīlauea's ground-based hazards from ADVISORY to NORMAL.

USGS
March 26, 2019

Kīlauea's Southwest Rift Zone was more volcanically active in the late 18th- to early 19th-centurys than previously assumed.

UAS mission documents conditions at the Overlook vent...
March 26, 2019

The 2018 Kīlauea Volcano lower East Rift Zone eruption was the first time Unmanned Aircraft Systems (UAS) were used by the Federal Government to assist with an eruption response in the U.S. The UAS (drones) surveyed areas that were too hazardous for field crews or manned aircraft to access, collected multiple types of data, and provided 24/7 real-time situational awareness.

Explosive eruption columns of ash rising
March 22, 2019

In February 1924, the surface of the lava lake at Halema‘uma‘u dropped rapidly and disappeared from view. Throughout March and April, the crater floor subsided as magma moved out of the summit reservoir into the East Rift Zone. By May 6, 1924, the floor of Halema‘uma‘u had dropped more than 180 m (about 600 ft) below the crater rim. 

Map of selected earthquakes beneath a portion of southeast Hawaii
March 15, 2019

Early Wednesday morning, just before 1AM on March 13, houses in east Hawai`i began to shake. Without a doubt, it was an earthquake. To those who endured the near-daily shaking from last summer’s collapse events at Kīlauea’s summit, this week’s earthquake was clearly different.

USGS
March 13, 2019

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-5.5 earthquake located beneath Kīlauea Volcano's south flank on Wednesday, March 13, at 12:55 a.m., HST.