The tremor's epicenter was one mile north of Piedmont, about 13 miles (21 kilometers) east of San Francisco on the Hayward Fault.
There are some under-appreciated, San Andreas-like faults off Los Angeles that could unleash large quakes and tsunamis. But it's nothing like Hollywood's version.
Four giant craters were discovered on the floor of Switzerland's Lake Neuchâtel. Continue reading →
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.
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