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Brown landscape with volcano in the background
December 31, 2018

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, California, photo taken in Jun...
June 1, 2016

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).

Plot of earthquakes in Mount Shasta region greater than M1.0 from A...
April 3, 2015

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.

Mount Shasta, California simplified hazards map showing potential i...
December 31, 2014

Mount Shasta, CA simplified hazards map

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, Californ...

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.