Latest Earthquakes near Three Sisters

NEW! Annual Time-Depth Plot of events near Three Sisters

Epicenter map and time vs. depth plots for earthquakes near Three Sisters in the last decade.

Webicorder Records.

Map Guide:

• Red dots represent events occuring in the past month.
• Green dots represent events occuring less than a year ago, but more than a month ago.
• Circles represent older events.
• Black triangles represent PNSN seismic stations. Stations are labeled with their names.
• Black squares represent major cities.
• Black stars indicate volcanoes.
• Magnitude scale is at upper left; distance scale at lower left.

Graph showing relationship between time and depth of earthquakes in the Three Sisters/Newberry Caldera area. In this graph, sea level is equal to 0 km depth.

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