High-tech instruments and old-fashioned groundwork remain important in the aftermath of an earthquake.
Report's maps show geologists' predictions of where and how often future earthquakes may occur and how strongly they may shake the ground.
New evidence reveals that many tsunamis have flooded Alaska's islands and fjords in the past several thousand years
New simulations show up to 70 percent less ground shaking in a major Southern California earthquake than previously thought. Continue reading →
On Feb. 27, 2010, the 8.8 magnitude earthquake that struck Chile sent seismic waves circling Earth's surface several times and caused microquakes in California.
Intercontinental earthquakes, such as the ones that rattled New Madrid, may not strike the same place twice.
How much damage would quakes like the ones that struck Iran earlier this week inflict on California?
Hurricane Irene is the first hurricane to follow so closely after an east coast earthquake, but the combo punch is reminiscent to 1944.
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