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# Cascades Volcano Observatory

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The U.S. Geological Survey's Cascades Volcano Observatory strives to serve the national interest by helping people to live knowledgeably and safely with volcanoes in Washington, Oregon, and Idaho. 

### Young Volcanoes in WA, OR & ID

**Very High Threat Potential** 1Crater LakeGlacier PeakMount BakerMount HoodMount RainierMount St. HelensNewberryThree Sisters**High Threat Potential** 1Mount Adams**Moderate Threat Potential** 1Mount Bachelor**Low to Very Low Threat Potential** 1BelknapBlack Butte Crater Lava FieldBlue Lake CraterCinnamon ButteCraters of the Moon Volcanic FieldDavis Lake Volcanic FieldDevils Garden Lava FieldDiamond Craters Volcanic FieldHell's Half Acre Lava FieldIndian Heaven Volcanic FieldJordan Craters Volcanic FieldMount JeffersonSand Mountain Volcanic FieldWapi Lava FieldWest Crater Volcanic Field1. View the threat rankings of US Volcanoes.

### Cascades Volcano Monitoring

USGS Cascades Volcano scientists listen to and watch volcanoes using a variety of equipment. Seismometers detect earthquakes, GPS receivers detect ground motion, "sniffers" detect volcanic gas, and staff innovate new equipment to solve unique activity detection needs.

Learn More

### Cascades Volcano Hazards

Volcanic activity in the Cascade Range can produce many types of volcano hazards. Tall and snow-covered mountains can be hazardous even without a change in volcanic activity.

Learn About Hazards

### CVO Quick Links

                        - Subscribe to volcano updates
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                        - Actions to take when a volcano erupts
                        - Photos, videos, and webcams

## News

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

December 14, 2023

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

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

October 30, 2023

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

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

June 20, 2023

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

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## Publications

November 29, 2023

####                 Dynamics of magma mixing and magma mobilization beneath Mauna Loa – Insights from the 1950 AD Southwest Rift Zone eruption.              

Volcano Hazards Program, Volcano Science Center, Cascades Volcano Observatory

August 25, 2022

####                 Can lava flow like water? Assessing applications of critical flow theory to channelized basaltic lava flows              

Volcano Hazards Program, Volcano Science Center, Cascades Volcano Observatory

May 15, 2020

####                 Mount St. Helens at 40              

Volcano Hazards Program, Volcano Science Center, Cascades Volcano Observatory

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## Science

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December 7, 2023

####                 Columbia River Basalt Group Stretches from Oregon to Idaho              

Cascades Volcano Observatory

link

December 7, 2023

####   Columbia River Basalt Group Stretches from Oregon to Idaho

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link

December 7, 2023

####                 The Boring Volcanic Field — Hills of the Portland Basin              

Cascades Volcano Observatory

link

December 7, 2023

####   The Boring Volcanic Field — Hills of the Portland Basin

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link

December 7, 2023

####                 Monitoring Cascade Volcanoes              

Cascades Volcano Observatory

link

December 7, 2023

####   Monitoring Cascade Volcanoes

Learn More

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### Young Volcanoes in WA, OR & ID

**Very High Threat Potential** 1Crater LakeGlacier PeakMount BakerMount HoodMount RainierMount St. HelensNewberryThree Sisters**High Threat Potential** 1Mount Adams**Moderate Threat Potential** 1Mount Bachelor**Low to Very Low Threat Potential** 1BelknapBlack Butte Crater Lava FieldBlue Lake CraterCinnamon ButteCraters of the Moon Volcanic FieldDavis Lake Volcanic FieldDevils Garden Lava FieldDiamond Craters Volcanic FieldHell's Half Acre Lava FieldIndian Heaven Volcanic FieldJordan Craters Volcanic FieldMount JeffersonSand Mountain Volcanic FieldWapi Lava FieldWest Crater Volcanic Field1. View the threat rankings of US Volcanoes.

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