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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The gentle slope of Mauna Loa as seen from the flanks of Mauna Kea ...

The gentle slope of Mauna Loa as seen from the flanks of Mauna Kea ...

The gentle slope of Mauna Loa as seen from the flanks of Mauna Kea to the north. Younger lava flows appear dark on the volcano's flank, and clouds rest in the eastern saddle between the two volcanoes.

Cleary day view of MO cam

[MOcam] Mokuʻāweoweo Caldera from South Rim

This image is from a research camera positioned on the south rim of Mokuʻāweoweo, Mauna Loa's summit caldera, in Hawaiʻi Volcanoes National Park. The camera looks north-northwest, focusing on the southern part of the caldera. The 1940 cone is just right of center; the 1949 cone is on the caldera rim at left. The high point of Mauna Loa's summit is in the background.

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Earthquakes at Mauna Loa from June 2013 to June 2015. Green circles...

Earthquakes at Mauna Loa from June 2013 to June 2015. Green circles...

Earthquakes at Mauna Loa from June 2013 to June 2015. Green circles are 0-5 km (0-3 mi) deep and similar to ones prior to 1975 and 1984 eruptions, but cluster of 5-10 km (3-6 mi) deep quakes missing.

Recent Changes at Kīlauea Volcano - Dec. 21 to Dec. 24

Kīlauea's summit has changed dramatically over the past four days! The KW webcam has captured these recent changes. The first image, taken on December 21, 2020, just after 6:30 a.m. HST shows how much the lava lake had grown since 9:30 p.m. on December 20, when the eruption began. The second image, taken at just after 6:30 p.m. HST on December 25, 2020 shows how much the

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USGS
January 26, 2021

Island of Hawai‘i Volcano Awareness Month 2021 schedule

Island of Hawai‘i Volcano Awareness Month 2021 schedule of virtual programs.

View of SP cam

[SPcam] South Pit from South Rim

This image is from a research camera positioned on the south rim of Mokuʻāweoweo, Mauna Loa's summit caldera, in Hawaiʻi Volcanoes National Park. The camera looks west-southwest, across South Pit, focusing on the south part of Mauna Loa's summit region and upper Southwest Rift Zone.

Disclaimer

The webcams are operational 24/7 and faithfully

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New eruption at Kīlauea Volcano - September 29, 2021

The USGS Hawaiian Volcano Observatory KWcam at Kīlauea's summit has captured the onset of a new eruption within Halemaʻumaʻu crater on September 29, 2021. At approximately 3:21 pm, HST, new fissures opened at the base of Halemaʻumaʻu crater. These fissures opened east of the large island near the center of the lava lake that was active within Halemaʻumaʻu crater from

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View of caldera from a webcam on the roof of a building

[KEcam] -Kīlauea Caldera - East Wide Angle from HVO Observation Tower

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 volcanic gas. At times, clouds and rain obscure visibility. The cameras are subject to sporadic breakdown, and may not be repaired immediately. Some cameras are

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USGS
August 2, 2021

Recent Hawaiian Volcano Observatory publications

Overview of recent Hawaiian Volcano Observatory publications. 

Clear day view of ML cam

[MLcam] Mokuʻāweoweo Caldera from the Northwest Rim

This image is from a temporary research camera positioned on the north rim of Mokuʻāweoweo, the summit caldera of Mauna Loa volcano by the USGS Hawaiian Volcano Observatory. If you look carefully around early morning or late evening, you may see a few thermal areas emitting steam. See 'Current Activity' for the latest Mauna Loa information.

Disclaimer

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Image: Endangered Hawaiian Hoary Bat

Endangered Hawaiian Hoary Bat

An endangered Hawaiian hoary bat, a species that is sometimes killed by wind turbines. USGS scientists from Hawaii and Colorado are devising a way to directly observe bat occurrence and behavior at wind turbines using a video system composed of high-powered illuminators and near-infrared cameras.  This new approach images the full rotor-swept areas of wind turbines for

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Recent earthquake activity recalls Kapoho eruption...
February 5, 1993

Earthquake activity this past week was considerably reduced from the high levels recorded the previous week. Three earthquakes occurred that had magnitudes greater than 3.0. The first, a magnitude 3.4, occurred on February 2 at 1:24 p.m. beneath the south flank of Kīlauea Volcano.

Most active seismic zone in the nation here...
January 29, 1993

Nearly everyone on the island of Hawai`i should have felt an earthquake this past week. As the accompanying map shows, Hawai`i was rattled by 11 earthqukes large enough to be felt in less than four days. 
 

Episode 51 continuing...
January 22, 1993

The eruption from the episode 51 vents, located on the west flank of the Pu`u `O`o cone on the East Rift Zone of Kīlauea Volcano, continues with little change. Lava is being fed to the coastline near Kamoamoa through a well-established underground tube system with only a few skylights, through which the flowing lavacan be seen from the air.

USGS
January 15, 1993

On Thursday an explosion in the crater of Galeras Volcano in Colombia killed six volcanologists attending an international workshop attended by more than 90 scientists, and killed an additional three people not attending the workshop.
 

Kīlauea: a youngster among world's active volcanoes...
January 8, 1993

One of the main impediments to predicting the future behavior of Kīlauea and especially Mauna Loa Volcanoes is the short historical record of each volcano. 
 

USGS
January 1, 1993

The Pu`u `O`o-Kupaianaha eruption now ranks as the longest-lived historic eruption on the East Rift Zone and the most destructive in Kīlauea's recent history. 

Underwater East Rift exploration reveals a few surprises...
December 11, 1992

The East Rift Zone of Kīlauea Volcano is 130 kilometers long, but only 55 kilometers of the rift is above sea level. The lower 75 kilometers of the rift is submarine and extends east-northeast from Cape Kumukahi to a depth of roughly 5,400 meters (17,700 feet). 

USGS
December 4, 1992

For the past 10 years, most of the evident changes on Kīlauea Volcano have occurred down the east rift zone near and downslope from the Pu`u `O`o and Kupaianaha vents. Last Sunday, a sequence of rockfalls occurred within the summit caldera that modestly changed the size and shape of Halema`uma`u Crater. 

Lava explodes into the sea at Kamoamoa...
November 27, 1992

Lava erupted from the episode 51 vents has been entering the sea at Kamoamoa since November 8. On Tuesday, a new phenomenon was observed. 

Lava continues to flow near Kamoamoa...
November 20, 1992

The eruption from the episode 51 vents has continued without interruption since October 2. The flows crossed the Chain of Craters Road near Kamoamoa in Hawai`i Volcanoes National Park on November 7. Since that time, flows have covered all of the Kamoamoa ruins, campground, parking lot, and picnic area, and have formed perhaps 30 acres of new land.
 

Volcano watchers should beware...
November 6, 1992

The eruption from the episode 51 vents has continued without interruption since October 2. The flows have now advanced to within 300 feet of the Chain of Craters Road inside Hawai`i Volcanoes National Park. The flows advanced over the pali during the last week-and-a-half and came within a quarter of a mile of Chain of Craters Road by early this week. 

USGS
October 30, 1992

The 10-year long eruption of Kīlauea Volcano continues from the episode 51 vents located on the west flank of the Pu`u `O`o cone. The flows advanced slowly from October 3 until October 28, when they began to flow over the pali above Kamoamoa.