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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Color photograph of volcanic crater
July 15, 2018

The growing Halema‘uma‘u

View of growing Halema‘uma‘u from the southeast side of Kīlauea Crater.

July 14, 2018

July 14, 2018, Kīlauea fissure 8 video captured by UAS

In this July 14, 2018, video captured by the UAS (Unmanned Aircraft Systems) team, lava was erupting from within the 120-foot-high fissure 8 cinder cone built of chilled lava fragments. Lava emerging from the cone was traveling about 13-16 miles per hour, flowing freely over a small set of cascades (rapids) and into a perched channel that was as much as 50 feet above the

July 13, 2018

Kīlauea Volcano's summit (DEM)

Since early May 2018, the floor of Halema‘uma‘u Crater has dropped 450 m (about 1480 ft). Extensive cracking and faulting around the crater, along with inward slumping of the crater rim, has more than doubled its diameter. Like a balloon slowly losing air, subsidence occurs because magma in Kīlauea's shallow summit reservoir is moving into the East Rift Zone more rapidly

This Hawai‘i County Fire Department aerial image shows Kapoho Crater
July 13, 2018

This Hawai‘i County Fire Department aerial image shows Kapoho Crater

This Hawai‘i County Fire Department aerial image shows Kapoho Crater with the most active branch of the fissure 8 lava channel now to the west (right) of the cone and feeding a robust ocean entry. The path of the fissure 8 channel prior to being diverted can be seen east (below and left) of the crater; despite no visible surface connection between this branch and the sea,

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Sink holes (dark spots to right of large tree) are beginning to form
July 13, 2018

Sink holes (dark spots to right of large tree) are beginning to form

Sink holes (dark spots to right of large tree) are beginning to form along fractures beneath the field of tephra that has formed downwind of fissure 8. Tephra (Pele's hair and other airborne volcanic glass fragments) from the fissure 8 lava fountains continues to fall downwind, covering the ground within a few hundred meters (yards) of the active vent. High winds can waft

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Color photograph of plume from lava entering ocean
July 12, 2018

Ocean entry plume rising from just offshore of Ahalanui Beach Park

In this aerial view looking to the north, a robust ocean entry plume can be seen rising from just offshore of Ahalanui Beach Park, which was inundated with lava yesterday. Beyond this entry

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July 12, 2018

Timelapse video of Halema'uma'u and Kīlauea Caldera

This time-lapse video shows Halema‘uma‘u and Kīlauea Caldera as seen from the USGS Hawaiian Volcano Observatory. It includes roughly one image for every day between April 14, 2018, and July 11, 2018. The lava lake is visible early in the video, with overflows onto the caldera floor on April 23, but the lake vanishes from sight in early May as pressure in the summit magma

July 12, 2018

Kīlauea Volcano's lower East Rift Zone compilation video

This compilation of video from HVO's early morning overflight of Kīlauea Volcano's lower East Rift Zone shows (1) lava from fissure 8 moving through a perched channel toward the northeast, (2) the diverted channelized ‘a‘ā flow west of Kapoho Crater, and (3) a vigorous ocean entry along the southern coastline in the vicinity of Ahalanui Beach Park (Warm Ponds).

July 12, 2018

Rockfalls and Sounds

Listen to the sounds of rockfalls at Kīlauea Volcano's summit in this short video taken from the northeast rim of the caldera. At 2:42 p.m. HST on July 12, 2018, a collapse/explosion event at Kīlauea's summit released energy equivalent to a magnitude-5.3 earthquake. Rockfalls that occurred in Halema‘uma‘u and along the steep summit caldera walls during the event can be

July 11, 2018

Four Examples of Nest Predation by Rats - Hawaii Volcanoes National

Black rats were unintentionally introduced to Hawai’i in the late 1800s, most likely as hitchhikers on trading vessels. Since their introduction, they have disrupted native ecosystems by destroying native plants, eating native arthropods, and depredating bird nests. Black rats have contributed to population declines and species extinctions of Hawaiian forest birds, and

July 11, 2018

Four Examples of Nest Predation by Rats (Short)

Black rats were unintentionally introduced to Hawai’i in the late 1800s, most likely as hitchhikers on trading vessels. Since their introduction, they have disrupted native ecosystems by destroying native plants, eating native arthropods, and depredating bird nests. Black rats have contributed to population declines and species extinctions of Hawaiian forest birds, and

During an overflight this morning, the Hawaii County Fire Department captured this image looking east toward Kapoho Crater. A br
July 11, 2018

Kīlauea lower East Rift Zone lava flow

During an overflight this morning, the Hawaii County Fire Department captured this image looking east toward Kapoho Crater. A breakout from the south margin of the main fissure 8 channel is sending a 

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This video clip shows typical pāhoehoe breakouts on the coastal pla...
October 8, 2017

Breakouts remain active on the coastal plain and pali

Modeling Kīlauea Volcano a Century Ago...
October 5, 2017

In today's age of aerial photography, satellites, and drones, bird's-eye views of geologic features are taken for granted. A century ago, such depictions posed enormous challenges. 

Legacy of the Mount St. Helens 1980 eruption still defies perfect s...
September 28, 2017

Thirty-seven years after the May 18, 1980, eruption of Mount St. Helens, Washington, scientists, engineers, land managers, and Federal, State, and County officials are still grappling with a challenge created by the eruption—how to prevent potentially massive downstream flooding by the release of water from Spirit Lake, located at the base of the volcano.

An example time-lapse image from the camera shown to the left. Thi...
September 21, 2017

Good views of Halema‘uma‘u's lava lake

Thermal map of flow field...
September 21, 2017

This mosaic of thermal images is basically a thermal map of the lava flow surface, and reveals the exact location of all the active surface breakouts.

Deformation of the lava delta continues...
September 20, 2017

Deformation of the lava delta continues

A telephoto of a stream of lava pouring from the delta to the beach...
September 19, 2017

Activity continues at the growing lava delta

Mauna Loa update: unrest continues, but the outcome is uncertain...
September 14, 2017

What's up with Mauna Loa, and is any change in sight?

Wispy fumes provided a clear view of the western wall of the Overlo...
September 13, 2017

Continued spattering in the summit lava lake

HVO K2cam image at the time of the 6:06 p.m. collapse on Sept. 8. ...
September 8, 2017

Collapses common during significant drops in summit lava lake