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Small earthquake swarm at Mount St. Helens March 11, 2019

Small earthquake swarm at Mount St. Helens March 11, 2019

Small earthquake swarm occurs at Mount St. Helens March 11, 2019

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Which U.S. volcanoes pose a threat?

Which U.S. volcanoes pose a threat?

USGS Volcanic Threat Assessment updates the 2005 rankings.

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USGS Unmanned Aircraft Systems (UAS) monitors gas emissions at Mount St. Helens

USGS Unmanned Aircraft Systems (UAS) monitors gas emissions at Mount St. Helens

USGS Unmanned Aircraft Systems (UAS) monitors gas emissions at Mount St. Helens in 2018

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Volcanic Threat Assessment help prioritize risk reduction efforts at U.S. volcanoes

Volcanic Threat Assessment help prioritize risk reduction efforts at U.S. volcanoes

Since 1980, there have been 120 eruptions and 52 episodes of notable volcanic unrest at 44 U.S. volcanoes.

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Volcanic Threat Assessment help prioritize risk reduction efforts at U.S. volcanoes.

Volcanic Threat Assessment help prioritize risk reduction efforts at U.S. volcanoes.

The USGS assesses active and potentially active volcanoes in the U.S., focusing on history, hazards and the exposure of people, property and...

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GeoGirls Rock! USGS women encourage and support the next generation of scientists

GeoGirls Rock! USGS women encourage and support the next generation of scientists

Mount St. Helens volcano loomed in the distance as 25 middle-school “GeoGirls” signed in, received a name tag, dropped their overnight gear and...

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Scientists Discover New Clues to Mount St. Helens Unusual Location

Scientists Discover New Clues to Mount St. Helens Unusual Location

The atypical location of Mount St. Helens may be due to geologic structures that control where deep magmas can rise through the crust, as suggested by...

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MEDIA ADVISORY: Join GeoGirls at Mount St. Helens August 1

MEDIA ADVISORY: Join GeoGirls at Mount St. Helens August 1

Twenty-five middle-school girls from Washington and Oregon are participating in the fourth annual “GeoGirls” outdoor volcano science program at Mount...

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Cascades Volcano Observatory Open House: Come Meet Volcano Scientists

Cascades Volcano Observatory Open House: Come Meet Volcano Scientists

MEDIA ADVISORY

Have you ever wondered what scientists do at a volcano observatory when a volcano is not erupting? There is plenty to accomplish...

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Washington State Volcano Preparedness Month

Washington State Volcano Preparedness Month

May is Volcano Preparedness Month in Washington, providing residents an opportunity to become more familiar with volcanic risk in their communities...

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Geologic maps lay the foundation for this virtual tour of western states volcanoes.

Geologic maps lay the foundation for this virtual tour of western states volcanoes.

Take a virtual geologic tour in the USGS Geonarrative, Volcanic Landscapes.

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Tectonic earthquake detected near Mount St. Helens.

Tectonic earthquake detected near Mount St. Helens.

There is no sign that this is connected to volcanic activity.

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