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.

States L2 Landing Page Tabs

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Map of flow field...
September 1, 2017

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

Map of flow field...
August 20, 2017

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

Map of flow field...
August 9, 2017

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

Thermal map of flow field...
August 9, 2017

This map is similar to the map above but shows a thermal map over the Episode 61g lava flow. 

Satellite image shows location of breakouts on flow field...
July 30, 2017

This satellite image was captured on Sunday, July 30, by the NASA/USGS Landsat 8 satellite. 

Map of flow field...
July 10, 2017

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

Map of flow field...
June 21, 2017

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

Satellite image shows location of breakouts on flow field...
June 2, 2017

This satellite image was captured on Friday, June 2, by the Sentinel-2 satellite operated by the European Space Agency.

Map of flow field...
May 31, 2017

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

Small-scale map of flow field...
May 3, 2017

This small-scale map shows Kīlauea’s active East Rift Zone lava flow field in relation to the southeastern part of the Island of Hawai‘i.

Map of flow field...
May 3, 2017

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

Map of flow field...
April 10, 2017

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

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Aerial view over residential area
July 8, 2018

Kīlauea Volcano — Lava Near Cape Kumukahi

Lava still oozes from the northern edge of the ‘a‘ā flow near the lighthouse at Cape Kumukahi (upper right). Smoke from burning vegetation marks location of lava oozeouts. View is toward the northeast. 

Aerial of braided lava channel
July 8, 2018

Kīlauea Volcano — Braided Lava Channel

Braided section of the lava channel located "downstream" between about 3.5 to 6 km (2.2 to 3.7 mi) from fissure 8 (upper right). The width of the two channels in the middle center is about 325 m (1,065 ft). View is toward the southwest.

Aerial of lava flow
July 8, 2018

Kīlauea Volcano — Kapoho Crater

View of the partially filled Kapoho Crater (center) and the open lava channel where it makes a 90-degree turn around the crater. The open channel no longer directly enters the ocean. Lava flows freely through the channel only to the southern edge of Kapoho Crater (left side of image). Clearly, lava moves into and through the molten core of the thick ‘a‘ā flow across a

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Lava channel
July 8, 2018

Kīlauea Volcano — Open-Ended Lava Channel

Close view of the "end" of the open lava channel where lava moves beneath the crusted ‘a‘ā flow.

animated GIF showing subsidence at a crater
July 8, 2018

Kīlauea Volcano — Animated GIF of Crater Subsidence

This animated GIF shows a sequence of radar amplitude images that were acquired by the Agenzia Spaziale Italiana CosmoSkyMed satellite system. The images illustrate changes to the 

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July 7, 2018

Kīlauea Volcano — Timelapse Changes at Caldera (6/13 - 7/7)

This series of images from June 13 through July 7, 2018, show dramatic down-dropping of part of Kīlauea Volcano's summit caldera floor. For weeks,

Camera looking over a summit
July 7, 2018

Kīlauea Volcano — SO2 Camera

For several years, a special ultraviolet camera has been located near Keanakākoʻi Crater at Kīlauea's summit. The camera was capable of detecting SO2 gas coming from Halema‘uma‘u crater. This morning, the camera was removed because there is very little SO2 to measure these days at the summit. In addition, cracking near Keanakākoʻi Crater was making access difficult.

Fissure eruption
July 7, 2018

Kīlauea Volcano — Fissure 8

View of Fissure 8 and channel during the morning overflight on July 7.

Lava entering the ocean
July 6, 2018

Kīlauea Volcano — Kapoho Bay

Ocean entry in Kapoho as viewed from morning helicopter overflight.

Satellite image over crater
July 6, 2018

Kīlauea Volcano — Satellite View of Kīlauea Summit

The WorldView-3 satellite acquired this view of Kīlauea's summit on July 3. Despite a few clouds, the area of heaviest fractures in the caldera is clear. Views into the expanding Halema‘uma‘u crater reveal a pit floored by rubble. HVO, on the northwest caldera rim, is labeled.

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prototype radar on the rim of Halema‘uma‘u at the summit of Kīlauea
March 22, 2018

A recent issue of Volcano Watch [https://volcanoes.usgs.gov/hvo/hvo_volcano_watch.html?vwid=1232] looked at what the level of the lava lake within Halema‘uma‘u can tell us about how Kīlauea works and the hazards it poses.

Double rainbow ends in Moku‘āweoweo...
March 16, 2018

On March 14, HVO's webcam [MLcam] captured this image of a double rainbow.

Halema‘uma‘u at dusk...
March 15, 2018

A little more than ten years ago, conditions around Kīlauea Volcano's summit were much different than today. The caldera floor was open to the public, and the air above it was normally clear. Halema‘uma‘u was an impressive sight, but peacefully in repose.

cover of publication
March 13, 2018

This study implements the first continuous, real-time operational routine for tracking lava lake surface motion, applying the technique to the persistent lava lake at the summit of Kīlauea Volcano.

vigorous lava fountains erupted on the floor of Halema‘uma‘u
March 8, 2018

To set the stage for next week's Volcano Watch about the upcoming anniversary of Kīlauea Volcano's current summit eruption, this week we revisit the history of past Halema‘uma‘u eruptions. We do so by reprising parts of a Volcano Watch article written in December 2008, soon after the ongoing Halema‘uma‘u lava lake reached a milestone as Kīlauea's longest summit eruption since 1924.

field engineers upgrade a tiltmeter on Kīlauea
March 1, 2018

Most people likely know that the USGS Hawaiian Volcano Observatory (HVO) uses seismometers and Global Positioning System (GPS) receivers for monitoring volcanoes. However, fewer people may be aware of the full extent of our volcano-monitoring toolkit.

direction of motion measured by GPS stations
February 22, 2018

Today's Volcano Watch begins with a question: Can you guess when the next slow slip event will happen on Kīlauea Volcano's South Flank? As a hint, the last one was in October 2015, and before then, events occurred in May 2012, February 2010, and June 2007. If this seems like a pattern, you're right.

Why are HVO scientists talking so much about Mauna Loa?...
February 15, 2018

In recent weeks, the USGS Hawaiian Volcano Observatory (HVO) joined forces with several other agencies to talk about Mauna Loa at community events and other public meetings. Unfortunately, some information presented at these gatherings has been misinterpreted.

bursting bubble on the surface of a lava lake
February 8, 2018

If you visit Hawai‘i Volcanoes National Park's Jaggar Museum Overlook when the wind is calm, you might be able to hear the sounds of gas bubbles bursting and lava splashing in the Halema‘uma‘u lava lake at the summit of Kīlauea. What you hear is only part of a rich chorus of sounds emitted from many processes near the surface of an active lava lake.

Early evening view of the lava lake
February 1, 2018

In November 2017, "Volcano Watch" entered its 27th year of publication. The long history of this column is, in large part, thanks to the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) scientists and affiliates who write the weekly articles, Hawaii newspapers and online news outlets that print and post the column, and you, the dedicated readers who peruse it each week.

Volcanic Air Pollution Hazards in Hawaii Fact Sheet....
February 1, 2018

Volcanic Air Pollution Hazards in Hawaii is an updated fact sheet that provides information on the science of Kīlauea's volcanic air pollution, known as "vog."

Halemaʻumaʻu lava lake with Mauna Loa in background...
January 31, 2018

A 24-minute USGS video recounts the eruptive history of Halema'uma'u and tells the story of Kīlauea Volcano's current summit eruption, from its start in 2008 through today.