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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Map showing flow field changes...
May 21, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. 

Landsat satellite image shows June 27th lava flow...
May 6, 2015

This satellite image was captured on Wednesday, May 6, 2015 by the Landsat 8 satellite. 

Map showing flow field changes...
April 25, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. 

Landsat satellite image shows June 27th flow...
April 20, 2015

This satellite image was captured on Monday, April 20, 2015 by the Landsat 8 satellite. 

Map showing flow field changes...
April 9, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.

Map show flow field with thermal overlays...
April 3, 2015

This map overlays georegistered mosaics of thermal images collected during a helicopter overflight of the three areas of breakouts near Pu‘u ‘Ō‘ō on April 3.

Map showing flow field changes...
April 3, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.

Map showing flow field changes...
April 1, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. 

Map showing flow field changes...
March 24, 2015

This map shows the changes to Kīlauea’s active East Rift Zone lava flow field. 

Map of proximal flow field with thermal overlays...
March 17, 2015

This map overlays georegistered mosaics of thermal images collected during a helicopter overflight of the three areas of breakouts near Pu‘u ‘Ō‘ō on March 17 at about 8:00 AM.

Small-scale map of flow field...
March 10, 2015

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

Map of proximal flow field with thermal overlays...
March 10, 2015

This map overlays georegistered mosaics of thermal images collected during a helicopter overflight of Kīlauea’s active East Rift Zone lava flow near Pu‘u ‘Ō‘ō on March 10 at about 10:25 AM.

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

Scientists deploy instruments at Kīlauea summit - 1/1/2021

HVO field crews deployed a dense network of temporary seismic instruments at Kīlauea’s summit on January 1, 2021, and with permission from Hawai‘i Volcanoes National Park. The temporary instruments supplement data already being collected by HVO's permanent seismic network and will help to track the migration and storage of magma in the shallow volcanic plumbing system

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Color photograph of volcanic vent
January 1, 2021

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

Telephoto view of the west vent area in Halema‘uma‘u, Kīlauea Volcano. The west vents are in the northwestern wall of Halema‘uma‘u crater; intermittent spattering at the vents has constructed a perched pointed cone on the crater wall. USGS photo by M. Patrick. 

Color photograph of volcanic vent
January 1, 2021

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

Another telephoto view of the west vent area in Halema‘uma‘u, Kīlauea Volcano. The west vents are in the northwestern wall of Halema‘uma‘u crater; intermittent spattering at the vents has constructed a perched pointed cone on the crater wall. USGS photo by M. Patrick. 

Color and gray scale images of tephra
December 31, 2020

Images of tephra from Kīlauea’s newest eruption, collected 12/21/2020

Left: magnified view of erupted material, including Pele’s hair and tears, as seen under a microscope (USGS Photo by K. Lynn on 12/26/2020). Middle: Zoomed in electron image of the tephra, where greyscale indicates the relative abundance of iron (Fe). Very small (less than 0.1 mm [less than 0.004 inches]) clinopyroxene and plagioclase crystals are labeled next to vesicles

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Color photograph of volcanic vent
December 31, 2020

Kīlauea west vent on December 31, 2020, morning

The western fissure in Halemaʻumaʻu wall remains active. Glowing vents and a prominent spatter cone are visible in this photo, which shows some spattering at the vent. This view looks steeply down from Kīlauea's west caldera rim, and the lava lake surface is visible in the background. USGS photo by B. Carr on 12/31/2020. 

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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. 

Lava flow thickness 2018
March 7, 2019

Eruption rate (how much lava comes out of the ground per unit time) is probably the best measure of volcanic activity, and the first step in that calculation is to measure lava flow thickness and area. 

fissure 8 on Kīlauea
February 28, 2019

Since the end of the 2018 lower East Rift Zone (LERZ) eruption on Kīlauea Volcano, questions have surfaced concerning how long it will take for the new lava flows to solidify. This is a difficult question to answer, because the initial eruptive temperatures along with many different factors can influence the rate of cooling.

USGS
February 22, 2019

2018 Kīlauea lower East Rift Zone eruption and calderal collapse described in Science paper.

USGS
February 22, 2019

USGS Fact Sheet, written by HVO scientists, won the 2018 Shoemaker Award for Communications Product Excellence for the Small Print category.

USGS
February 22, 2019

Information about how to stay informed about Hawaiian volcanoes.

USGS
February 22, 2019

A temporary monitoring camera on the west rim of Kīlauea caldera now provides views looking east toward the bottom of the recently enlarged Halema‘uma‘u.

test flight of an unmanned aerial system
February 21, 2019

With the end of Kīlauea Volcano's 2018 lower East Rift Zone eruption, the Island of Hawai‘i was able, at long last, to say goodbye to strong vog—volcanic smog produced by voluminous sulfur dioxide (SO2) emissions.

USGS
February 19, 2019

January 2019 is Hawaiʻi Island's 10th annual Volcano Awareness Month.

Hawaii that extend offshore
February 14, 2019

Earthquakes in Hawaii are intimately related to the volcanoes. In addition to helping scientists track moving magma, sometimes they happen simply because the earth under the island chain gets bent out of shape.

Fissure 8 reactivated on the afternoon of May 28 and at times, was ...
February 7, 2019

The 2018 lower East Rift Zone (LERZ) eruption of Kīlauea brought an end to the 35+ year eruption at Pu‘u ‘Ō‘ō. With the draining of the summit and the collapse of Pu‘u ‘Ō‘ō, Puna residents were concerned that the eruption in the LERZ could be long-lived.