AFTERSHOCK
Initializing Seismic Monitor

AFTERSHOCK

U.S. Seismic Activity Monitor
— Events / 30d
— Largest
— States Active
— ☢ Hiroshima Equiv.
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Data: USGS Earthquake Hazards Program
Time Window
Min Magnitude  1.5
Magnitude
M 1.5 – 1.9
M 2.0 – 2.9
M 3.0 – 3.9
M 4.0 – 4.9
M 5.0 – 5.9
M 6.0+
National Overview — Past 30 Days
Recent Significant (M 3.0+)