Cascades Volcano Observatory


Filter Total Items: 122
Date published: October 15, 2018

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 gathered in a grassy open space to meet camp staff, women scientists and volunteers.

Date published: September 3, 2018

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 new findings published today in Nature Geoscience.

Date published: July 26, 2018

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 St. Helens, jointly organized by the U.S. Geological Survey and the Mount St. Helens Institute.

Date published: May 1, 2018

Cascades Volcano Observatory Open House: Come Meet Volcano Scientists


Have you ever wondered what scientists do at a volcano observatory when a volcano is not erupting? There is plenty to accomplish—probably more than you can imagine.

Date published: April 30, 2018

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 and learn about steps they can take to reduce potential impacts.

Date published: January 3, 2018

Tectonic earthquake detected near Mount St. Helens.

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

Date published: October 11, 2017

Earthquake Swarm Occurring at Mount Hood

Swarms common in the vicinity of Mount Hood.

Date published: September 28, 2017

Volcano Watch — Legacy of the Mount St. Helens 1980 eruption still defies perfect solution

Thirty-seven years after the May 18, 1980, eruption of Mount St. Helens, Washington, scientists, engineers, land managers, and Federal, State, and County officials are still grappling with a challenge created by the eruption—how to prevent potentially massive downstream flooding by the release of water from Spirit Lake, located at the base of the volcano.

Date published: September 21, 2017

Modest uptick in Rainier earthquakes linked to volcano's hydrothermal system.

Each swarm provides seismologists with more perspective on the personality of the volcano and aids in our ability to assess hazards in the future.

Date published: August 30, 2017

Seismologists deploy largest number of seismometers ever at Mount St. Helens—a dense array designed to detect tiny quakes.

Scientists learn more about conditions in the shallow subsurface at this active volcano.

Date published: August 8, 2017

International Volcano Science Meeting in Portland

Join volcano scientists from around the world during scientific meeting and associated public event in Portland.