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Map of Yellowstone Lake seismic swarms in 2008-2009 and 2020

By Yellowstone Volcano Observatory
Map of Yellowstone Lake seismic swarms in 2008-2009 and 2020
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Detailed Description

Map of earthquakes that occurred beneath Yellowstone Lake as parts of seismic swarms in 2008-2009 (green) and 2020 (red).  Orange line is the boundary of Yellowstone Caldera, which formed 631,000 years ago.

Sources/Usage

Public Domain.