U.S. Geological Survey Earthquake Hazards Program
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Our scientists study locations around the world. Learn about research conducted in our regional offices, regional seismic network monitoring, and local activities of interest.
Today’s Earthquake Fact
The origin of the name of the San Andreas Fault is often cited as the San Andreas Lake. However, based on some 1895 and 1908 reports by geologist A.C. Lawson, who named the fault, the name was actually taken from the San Andreas Valley. Lawson likely did not realize at the time that the fault ran almost the entire length of California.
News & Highlights
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Significant Earthquakes
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Recent Earthquakes (M 2.5+)
- M 2.8, Kodiak Island Region, Alaska February 8, 2010 22:06:49 UTC
- M 2.5, Baja California, Mexico February 8, 2010 20:48:32 UTC
- M 3.5, Central California February 8, 2010 19:56:23 UTC
- M 4.9, South Of The Fiji Islands February 8, 2010 16:40:54 UTC
- M 3.7, Kodiak Island Region, Alaska February 8, 2010 16:02:56 UTC
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Earthquake News
Featured Items
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Slab Models for Subduction Zones
Three-dimensional compilation of global subduction geometries separated into regional models for each major subduction zone.




