Volcano Hazards Program Office

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Helicorder for Plate Boundary Observatory borehole seismometer B207...

Helicorder for Plate Boundary Observatory borehole seismometer B207...

Seismicity is shown for January 17, 2010 through the Feb 8, 2010. Borehole seismometer B207 is located about 7 miles (12 km) northeast of the 2010 swarm. Seismic data are provided by the National Science Foundation funded Plate Boundary Observatory operated by UNAVCO.

KWcam images comparing first 2 weeks of Halema‘uma‘u crater eruption

KWcam webcam images compare the changes within Halema‘uma‘u crater since the eruption at Kīlauea Volcano’s summit started two weeks ago. The left image, taken on December 21 at 7:02 a.m. HST, shows the west vent (lower center) and north vent (center left) both erupting lava that is cascading into the new lava lake. In the right image from this morning, January 4 at 9:30 a.

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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.

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Exposed rock ridges are thick Pleistocene lava flows that were conf...

Exposed rock ridges are thick Pleistocene lava flows that were conf...

Exposed rock ridges are thick Pleistocene lava flows that were confined between large glaciers. Glacier Peak, Washington, view north.

LaharZ model (left) of the possible lahar hazards from the Carbon a...

LaharZ model of the possible lahar hazards from the Carbon and Puya...

LaharZ model (left) of the possible lahar hazards from the Carbon and Puyallup River drainages from Mount Rainier. The town of Orting, Washington (photograph) sits in the lahar hazard zone.

Deposit of the largest lahar from Mount Baker, Washington, exposed ...

Deposit of the largest lahar from Mount Baker, WA, exposed near con...

Note the protruding logs and branches from living trees that were knocked down and carried by the lahar. Ice axe, 3 ft, shows scale. Lahars are the greatest hazard at Mount Baker.

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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Map of Kīlauea Volcano showing the south-southeast motion, as recor...

Map of Kīlauea showing the south-SE motion, as recorded by continuo...

Map of Kīlauea Volcano showing the south-southeast motion, as recorded by continuous GPS sites (arrows), and earthquake epicenter between February 1-3, 2010.

Before the eruption of May 18, 1980, Mount St. Helens' elevation wa...

Before the eruption of May 18, 1980, Mount St. Helens' elevation wa...

Mount Adams elevation is 3,745 m (12, 286 ft). Mount St. Helens was the smallest of five major volcanic peaks in Washington State.