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 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. 

Satellite image of area around front of Kīlauea's East Rift Zone la...
January 13, 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 9, 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 9, 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 6, 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 6, 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 6, 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.

Thermal overlay of distal part of flow field...
January 6, 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 6 at about 11:30 AM. 

Satellite image of area around front of Kīlauea's East Rift Zone la...
January 4, 2015

Image showing a close-up of the June 27th lava flow in the area of Kaohe Homesteads and Pāhoa. 

Episode 61 (Peace Day) flow field...
October 29, 2012

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.

Episode 61 (Peace Day) flow field...
October 10, 2012

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.

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March 18, 2019

Rockfalls continue to change the shape of Pu‘u ‘Ō‘ō crater

This video was taken during an overflight of the Pu‘u ‘Ō‘ō crater on Kīlauea Volcano's middle East Rift Zone. No major changes were observed, but the shape of the crater continues to be altered by continued rockfalls.

March 18, 2019

3D model of the Pu‘u ‘Ō‘ō crater - March 18, 2019

This 3D model of the Pu‘u ‘Ō‘ō crater was constructed from thermal images taken during a recent helicopter overflight. White areas show warm spots in the crater. Despite the absence of active lava in Pu‘u ‘Ō‘ō, changes at the crater have continued since magma drained from beneath it on April 30, 2018. The shape of the crater continues to change through occasional small

Color photograph of sulfur deposits and steam on crater wall
March 13, 2019

Sulfur deposits forming in the new Halema‘uma‘u crater

Telephoto zoom of the largest sulfur deposit forming on the NE talus wall in Halema‘uma‘u. The view is from the
USGS Hawaiian Volcano Observatory's K3cam. Images can be viewed on HVO's website at https://volcanoes.usgs.gov/observatories/hvo/webcam.html?webcam=K3cam.

test flight of an unmanned aerial system
February 20, 2019

test flight of an unmanned aerial system

A USGS pilot and Hawaiian Volcano Observatory gas geochemist prepare to conduct a test flight of an unmanned aerial system (UAS) on Kīlauea Volcano in November 2018. This UAS was outfitted with a prototype miniaturized multi-gas sensor for the detection of volcanic gases emitted by Kīlauea, including sulfur dioxide and carbon dioxide.

Explosive eruption columns of ash rising
December 31, 2018

Explosive eruption columns of ash rising

Explosive eruption columns of ash rising from Halema‘uma‘u at 11:15 a.m. on May 18, 1924 (top) and at 11:05 a.m. on May 15, 2018 (bottom) look similar. Researchers are re-evaluating early assumptions about the role groundwater played in triggering these explosive eruptions at the summit of Kīlauea Volcano and are now looking at the build-up of gases from retreating magma

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Map of selected earthquakes beneath a portion of southeast Hawaii
December 31, 2018

Map of selected earthquakes beneath a portion of southeast Hawaii

Map of selected earthquakes beneath a portion of southeast Hawai`i from May 4, 2018 to March 14, 2019, showing principally aftershocks following May 4, 2018 M6.9 earthquake. Black dots indicate epicenters of 13,083 earthquakes located during this time interval; yellow stars show locations of the M6.9 earthquake and the March 13, 2019 M5.5 earthquake.

Lava flow thickness 2018
December 31, 2018

Lava flow thickness 2018

This preliminary thickness map of Kīlauea Volcano's 2018 lower East Rift Zone lava flows was calculated by subtracting pre-eruption ground surface elevations from post-eruption ground surface elevations mapped with USGS Unmanned Aerial System (drone) flights. The drones acquired 2,800 aerial photos from which 1.5 billion common points were automatically selected by Surface

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Image of wind turbine towering over trees
December 31, 2018

Wind turbine towering over trees

A wind turbine rising above Oʻahu trees forms part of a wind energy installation where USGS bat research is taking place.

Equipment set up on the ground below a wind turbine.
December 31, 2018

Equipment set up at wind energy site

Bat detection and monitoring equipment set up below a turbine at an Oʻahu, Hawaiʻi wind energy site.

Wind turbines and trees against sky at sunset.
December 31, 2018

Windmills at sunset, Oʻahu

Turbines at a wind energy site on Oʻahu, Hawaiʻi.

 Department of Interior UAS pilots
December 31, 2018

UAS pilots at Kilauea

Department of Interior UAS pilots from left to right – Elizabeth Pendleton (USGS, Woods Hole, MA), Colin Milone (Office of Aviation Services, AK), John Vogel (USGS; Flagstaff, AZ), Sandy Brosnahan (USGS, Woods Hole, MA), Brandon Forbes (USGS; Tucson, AZ), Chris Holmquist-Johnson (USGS; Fort Collins, CO), Hannah Dietterich (USGS; Anchorage, AK), and Emily Sturdivant (USGS,

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View from the sky of a massive lava flow with glowing lava and smoke coming from a fissure in the earth.
December 31, 2018

Fissure 8 cone and 8-mile lava flow

An aerial view, collected from a USGS UAS, of Hawai‛i’s fissure 8 cone, and the start of the 8-mile lava flow to reach the ocean entry point.

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Tsunami Awareness Hawai‘i...
April 2, 2018

Throughout the month, Federal, State, and Local government agencies, the Pacific Tsunami Museum, and other organizations will offer outreach events to increase awareness of Hawaii's tsunami hazards.

Degraded coral reefs at Kahekili Beach Park, west Maui, Hawai‘i.
March 30, 2018

According to a study by USGS scientists, polluted, low-pH groundwater discharging onto a shallow coral reef off Kahekili Beach Park in west Maui, Hawai‘i, further increases seawater acidity and exposes corals to nitrate concentrations 50 times higher than normal.

Corallimorph infestation on coral reef 2
March 29, 2018

Honolulu, Hawaii – Control efforts such as the removal of shipwrecks and application of chlorine may help mitigate the damaging effects of corallimorph, which is a type of invasive anemone, on valuable coral reefs in the Central Pacific Ocean, according to a new U.S. Geological Survey study.

Destruction caused by the 1868 great Kau earthquake
March 29, 2018

This week marks 150 years since the largest earthquake to strike Hawaii in the last two centuries. Estimated to have been at least magnitude-7.9, this earthquake struck near Pāhala in the Ka‘ū District of the Island of Hawai‘i on April 2, 1868.

Matt Patrick on Kīlauea
March 27, 2018

For the 10th anniversary of Kīlauea Volcano's summit eruption, USGS–Hawaiian Volcano Observatory research geologist Matt Patrick talks about his work monitoring the lava lake in the Halema'uma'u Crater.

Volcano Art at Hawai`i Volcanoes National Park—A Science Perspectiv...
March 26, 2018

In this new USGS Open-File Report, artwork is matched with the approximate date and volcanological context of the scene, showing eruptions at Kīlauea and Mauna Loa in the late 19th century.

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.