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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Black and white photographs of lava lakes in crater
December 11, 1919

Halemaʻumaʻu lava lake on December 11, 1919

Panorama photos taken of Halemaʻumaʻu lava lake on December 11, 1919, showing the outer ring-shaped lake, the ring-shaped island of tilted crusts along the inner edge, and the central lava lake at Kīlauea's summit. USGS photos by T.A. Jaggar. 

Temporary webcam located just southwest of Kīlauea summit caldera

[KOcam] South of Kīlauea caldera towards 1982 flow

This temporary webcam, which is located just southwest of Kīlauea summit caldera, looks south over the area of the August 2021 intrusion. The dark lava flow on the left of image (mid-ground) is where the 1982 lava flow spilled out of the south caldera.

 

Disclaimer

The webcams are operational 24/7 and faithfully record the dark of

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Profile of Mauna Kea showing inferred contact (dot-dashed line) bet...

Profile of Mauna Kea showing inferred contact (dot-dashed line) bet...

Profile of Mauna Kea showing inferred contact (dot-dashed line) between postshield-stage Hamakua Volcanics and underlying shield-stage lavas. Approximate contact with Laupahoehoe Volcanics dashed.

Eruption continues in Halema‘uma‘u at Kīlauea's summit

The KW webcam has documented the activity in Halema‘uma‘u crater wall at Kīlauea's summit. This photo comparison shows that activity has not changed significantly over the past several days. The first image (left) was taken on December 27, 2020, just after 6:30 a.m. HST, and the second image (right) was taken on January 1, 2021, just after 6:30 a.m. HST. The photos show

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[KWcam] - Halemaʻumaʻu and down-dropped caldera floor

[KWcam] - Halemaʻumaʻu and down-dropped caldera floor

Live Panorama of Halemaʻumaʻu and down-dropped caldera floor from the west rim of the new summit collapse features [KWcam]. 

Disclaimer

The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of incandescence or other lights. Thermal webcams record heat rather than light and get better views through

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[M1cam] Mauna Loa's Northeast Rift Zone from HVO Observation Tower

This image is from a research camera positioned in the observation tower at the Hawaiian Volcano Observatory. The camera looks northwest toward the summit and Northeast Rift Zone of Mauna Loa.

Disclaimer

The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of incandescence or other lights. Thermal

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Geologic map of Mauna Kea with generalized surface distribution of ...

Geologic map of Mauna Kea with generalized surface distribution of ...

Geologic map of Mauna Kea with generalized surface distribution of Hamakua Volcanics. Laupahoehoe Volcanics are inferred to overlie a vast area of Hamakua Volcanics on the upper flanks and summit.

Wide Angle from HVO Observation Tower

[KW2cam] - Halemaʻumaʻu - Wide Angle

Live Panorama of Halemaʻumaʻu - Wide Angle from HVO Observation Tower [KW2cam].

View from m2 cam

[M2cam] The Middle Part of Mauna Loa's Southwest Rift Zone

This image is from a research camera positioned on a cone in Mauna Loa's Southwest Rift Zone in Hawaiʻi Volcanoes National Park. The camera looks northeast (upslope), focusing on the middle part of the Southwest Rift Zone. The volcano's summit is at upper right.

Disclaimer

The webcams are operational 24/7 and faithfully record the dark of

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Gas Plume during the 1984 eruption of Mauna Loa, Hawaii blocks out ...

Gas Plume during the 1984 eruption of Mauna Loa, Hawaii

Gas Plume during the 1984 eruption of Mauna Loa, Hawaii blocks out the sun.

Views of Mauna Loa Volcano during clear weather day (left) and on d...

Views of Mauna Loa Volcano during clear weather day and on day when...

These views of Mauna Loa are from near the Hawaiian Volcano Observatory looking toward the west. The view on left is typical during strong trade winds that blow the plume from Halema‘uma‘u Crater southwest of the summit area. The view on right is common during slack winds that allow vog conditions to develop in the summit area of Kīlauea. During such conditions, people

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USGS
March 18, 1994

Following the spectacular display of steam explosions and lava fountaining at the ocean entries last week, this week began with another pause in the eruption. By last Sunday morning, lava had stopped entering the ocean, and the lava tube upslope was drained and empty, although still brightly glowing.
 

Volcano erupts in big show
March 11, 1994

Lava activity at the coast where the flows enter the ocean has been spectacular this past week. The activity has included high lava spattering and formation of three new cones along the ocean entries. On Friday, March 4, explosions began at the coast and intensified during the day. 

USGS
March 4, 1994

The 11-year-long eruption on Kīlauea's East Rift Zone took a brief pause on Thursday, but activity resumed within a matter of hours. 
 

The hazards of post and pier foundations...
February 25, 1994

The column last week summarized the types of damage to structures resulting from shaking during large earthquakes beneath Hawai‘i.

USGS
February 18, 1994

Over the last several weeks, we have run suggestions of specific things that you can do to reduce your exposure to damage caused by earthquakes. 

Dangerous ledge collapses becoming more common...
February 11, 1994

Lava from the 11-year long eruption along Kīlauea's East Rift Zone continues to pour into the ocean near Kamoamoa inside Hawai‘i Volcanoes National Park. 

USGS
February 4, 1994

The magnitude-5.2 earthquake that occurred at 12:02 a.m. Tuesday morning served as a not-so-gentle reminder of the seismic hazard on the Island of Hawai‘i. The quake was felt throughout the State, with reports from as far away as Kapa'a, Kaua‘i. 
 

USGS
January 28, 1994

Large, damaging earthquakes have occurred frequently in Hawai`i in the past and will occur again in the future, as we discussed last week. However, there is a great deal you can do to reduce your personal risk.
 

USGS
January 21, 1994

A magnitude-6.6 earthquake devastated the Northridge area of Los Angeles on Monday, January 17, at 4:31 a.m. The extent and type of damage in the Los Angeles region caused by an earthquake of this magnitude has been shocking. 

Eleven years of activity at Kīlauea volcano - part II...
January 14, 1994

Editor's note: The following is part two of an 11-year retrospective look at Kīlauea Volcano - October 1992 through the end of 1993.
 

USGS
January 7, 1994

Editor's note: Today's "Volcano Watch" includes the first half of a 11-year retrospective of the Kīlauea eruption up to October 1992. Next week, the second half will cover the most recent volcanic action at Kīlauea.
 

USGS
December 24, 1993

The snow that fell this past week at the summits of Mauna Kea and Mauna Loa volcanoes reminds us that it can get cold enough to snow, even here in the tropics.