U.S. Geological Survey Earthquake Hazards Program
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USA (Magnitude 1+)
February 23, 2012 07:32:41 UTC
Regional Offices
Our scientists study earthquakes around the world. Learn about research conducted in our regional offices, regional seismic network monitoring, and local activities of interest.
News & Highlights
Significant Earthquakes
Additional Resources
Featured Items
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Frequently Asked Questions Concerning Earthquakes Induced by Fluid Injection
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ShakeOut "Drop, Cover, and Hold On" Drill
On February 7, 2012, at 10:15 a.m.* CST, more than one million people across nine states will participate in the 2012 Great Central U.S. ShakeOut!
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Introducing TED - USGS Twitter Earthquake Dispatch
The USGS is now offering earthquake tweets via twitter at @USGSted and @USGSBigQuakes.
Today’s Earthquake Fact
From 1975-1995 there were only four states that did not have any earthquakes. They were: Florida, Iowa, North Dakota, and Wisconsin.
