Mount Shasta, a steep-sided Cascade Range stratovolcano in Northern California, looms above Little Glass Mountain, a thick obsidian flow erupted from the Medicine Lake shield volcano about 1,000 years ago. These are just two of the young volcanic areas monitored by the USGS California Volcano Observatory. USGS photo.
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Mount Shasta, a steep-sided Cascade Range stratovolcano in Northern Ca
Mount Shasta, a steep-sided Cascade Range stratovolcano in Northern California, looms above Little Glass Mountain, a thick obsidian flow erupted from the Medicine Lake shield volcano about 1,000 years ago. These are just two of the young volcanic areas monitored by the USGS California Volcano Observatory. USGS photo.
View of a snow-covered Mount Shasta, CA, photo taken in June 2017
The photo was taken from a vantage looking up Avalanche Gulch at Red Banks (a line of cliffs along the ridge central to the photograph).
The photo was taken from a vantage looking up Avalanche Gulch at Red Banks (a line of cliffs along the ridge central to the photograph).
Plot of quakes in Mount Shasta region greater M1.0 from 2010 to 2016
Plot of earthquakes in Mount Shasta region greater than M1.0 from April 3, 2010 to April 3, 2015.
Plot of earthquakes in Mount Shasta region greater than M1.0 from April 3, 2010 to April 3, 2015.
Mount Shasta, CA simplified hazards map
Mount Shasta, California simplified hazards map showing potential impact area for ground-based hazards during a volcanic event.
Mount Shasta, California simplified hazards map showing potential impact area for ground-based hazards during a volcanic event.
Lidar images of Shastina cone, west flank of Mount Shasta, CA. Deta...
Lidar images of Shastina cone, west flank of Mount Shasta, California. Details of lava flows and other surficial features are best seen in the image to the right with vegetation removed.
Lidar images of Shastina cone, west flank of Mount Shasta, California. Details of lava flows and other surficial features are best seen in the image to the right with vegetation removed.
Map showing one-year probability of accumulation of 1 centimeter
Map showing one-year probability of accumulation of 1 centimeter (0.4 inch) or more of tephra from eruptions of volcanoes in the Cascade Range.
Map showing one-year probability of accumulation of 1 centimeter (0.4 inch) or more of tephra from eruptions of volcanoes in the Cascade Range.