Map of Yellowstone earthquakes as located by the Univ. of Utah Seis...
Detailed Description
Red circles represent all seismicity and blue circles represent earthquakes as part of earthquake swarms. The size of the circles is scaled to the magnitude of the earthquake. The 630,000 year old Yellowstone caldera is shown as a bold black line within Yellowstone National Park. Mapped faults are shown as light gray lines.
Sources/Usage
Public Domain.