Quakes beneath crater of Mount St. Helens, 2008 to Mar. 2017
Detailed Description
Time-depth plot of earthquakes beneath the crater of Mount St. Helens from 2008 to March 18, 2016. Circle size indicates magnitude (the largest circle on the graph is a Magnitude 3.0). The largest earthquake of the most recent swarm (March 14-18, 2016) is a Magnitude 0.7.
Sources/Usage
Public Domain.
USGS-CVO