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Monitoring stations detect small magnitude earthquakes at Mount Hood (December 8-13, 2023)

Monitoring stations detect small magnitude earthquakes at Mount Hood (December 8-13, 2023)

These small magnitude earthquakes are consistent with movement along a fault and do not signify a change in volcano hazard at Mount Hood.

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Uptick in earthquake activity at Mount St. Helens remains within background levels (July 15, 2023-Present)

Uptick in earthquake activity at Mount St. Helens remains within background levels (July 15, 2023-Present)

Over the past three months, seismicity at Mount St. Helens has been elevated but remains within the normal range of background seismicity. Most of the...

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Tonga’s Hunga eruption produced the most intense lightning ever recorded

Tonga’s Hunga eruption produced the most intense lightning ever recorded

The eruption produced 2,600 flashes per minute at peak intensity. Scientists used the lightning to peer into the ash cloud, teasing out new details of...

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Mount Rainier reminds us that September is National Preparedness Month

Mount Rainier reminds us that September is National Preparedness Month

Interesting cloud formation at Mount Rainier's summit sparks interest in its geologic past and preparedness for future eruptions.

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USGS Offers Emergency Managers a New Tool to Assess Lahar Hazards at Mount Rainier

USGS Offers Emergency Managers a New Tool to Assess Lahar Hazards at Mount Rainier

U.S. Geological Survey scientists studying Mount Rainier and its hazards for the past 70 years have long recognized that the greatest danger may not...

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USGS Releases Five-year Nationwide Strategic Plan for Volcano Hazards

USGS Releases Five-year Nationwide Strategic Plan for Volcano Hazards

The U.S. Geological Survey recently released a new Volcano Hazards Program Strategic Science Plan for 2022-2026.

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Volcanoes and USGS Volcano Science: Just the Facts

Volcanoes and USGS Volcano Science: Just the Facts

Volcanoes are an incredible feature of Earth’s geologic environment – at once awe-inspiring and terrifying. They remind us that the planet we call...

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Slight uptick in earthquakes at Newberry Volcano (March 24-April 3, 2022)

Slight uptick in earthquakes at Newberry Volcano (March 24-April 3, 2022)

During March 24 to April 3, 2022, seismologists observed a slight uptick in seismic activity at Newberry Volcano. The earthquakes occurred in an area...

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Scientists detect rejuvenated uplift near South Sister volcano.

Scientists detect rejuvenated uplift near South Sister volcano.

Using satellite imagery and sophisticated GPS instruments, Cascades Volcano Observatory geophysicists have detected a subtle increase in the rate of...

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Media Advisory: Busting Myths About One of the Largest Volcanic Systems in the World - Live Online Public Lecture

Media Advisory: Busting Myths About One of the Largest Volcanic Systems in the World - Live Online Public Lecture

You are invited to a public lecture on busting the top 10 misconceptions about Yellowstone volcanism.

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New Scanning DOAS Installed at Mount St. Helens

New Scanning DOAS Installed at Mount St. Helens

The combination of a continuous MultiGAS station within Mount St. Helens' crater and the new scanning DOAS represents state-of-the-art in geochemical...

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Media Advisory: Mount St. Helens Revisited - Live Online Public Lecture

Media Advisory: Mount St. Helens Revisited - Live Online Public Lecture

You are invited to a public lecture about the 1980 Mount St. Helens eruptions.

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