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Earthquake Hazards

The USGS monitors and reports on earthquakes, assesses earthquake impacts and hazards, and conducts targeted research on the causes and effects of earthquakes. Explore and search below.

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M5.8 August 23, 2011 Mineral, Virginia

On August 23, 2011 tens of millions of people along the East Coast suddenly felt the earth shaking from the largest earthquake in the eastern U.S. since the M5.8 earthquake in 1944 near Cornwall and Massena, New York.
M5.8 August 23, 2011 Mineral, Virginia

M5.8 August 23, 2011 Mineral, Virginia

On August 23, 2011 tens of millions of people along the East Coast suddenly felt the earth shaking from the largest earthquake in the eastern U.S. since the M5.8 earthquake in 1944 near Cornwall and Massena, New York.
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M5.3 2017 Soda Springs, Idaho Sequence

M5.3 2017 Soda Springs, Idaho Sequence

- last updated September 27, 2017 1:40 PST
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February 2018 Danville, California Sequence

Mon Mar 5, 7:30pm PT The earthquake swarm near Danville had continued to taper off over the past week. Since Feb 23 there have only been two earthquakes in the sequence larger than magnitude 2.0, a magnitude 2.0 on Feb 27 and a magnitude 2.5 on Mar 1. The most likely scenario looking forward is for this sequence to continue to taper off.
February 2018 Danville, California Sequence

February 2018 Danville, California Sequence

Mon Mar 5, 7:30pm PT The earthquake swarm near Danville had continued to taper off over the past week. Since Feb 23 there have only been two earthquakes in the sequence larger than magnitude 2.0, a magnitude 2.0 on Feb 27 and a magnitude 2.5 on Mar 1. The most likely scenario looking forward is for this sequence to continue to taper off.
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