Man-made earthquakes, a side effect of some high-tech energy drilling, cause less shaking and in general are about 16 times weaker than natural earthquakes with the same magnitude, a new U.S. study found.
Earth Sciences
Aug 19, 2014
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Induced earthquakes generate significantly lower shaking than tectonic earthquakes with comparable magnitudes, except within 10 km of the epicenter, according to a study to be published online August 19 in the Bulletin of ...
Earth Sciences
Aug 18, 2014
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A cluster of closely timed earthquakes over 100 years in the 17th and 18th centuries released as much accumulated stress on San Francisco Bay Area's major faults as the Great 1906 San Francisco earthquake, suggesting two ...
Earth Sciences
May 19, 2014
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In the global aftershock zone that followed the major April 2012 Indian Ocean earthquake, seismologists noticed an unusual pattern – a dynamic "stress shadow," or period of seismic silence when some faults near failure ...
Earth Sciences
Mar 11, 2014
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Research led by a University of Oregon doctoral student in California's Santa Cruz Mountains has uncovered geologic evidence that supports historical narratives for two earthquakes in the 68 years prior to San Francisco's ...
Earth Sciences
Feb 12, 2014
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Tall buildings, bridges and other long-period structures in Greater Vancouver may experience greater shaking from large (M 6.8 +) earthquakes than previously thought due to the amplification of surface waves passing through ...
Earth Sciences
Jan 20, 2014
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With its coastal bluffs, roller coaster hills and soggy weather, Seattle is primed for landslides even when the ground isn't shaking. Jolt the city with a major earthquake, and a new study from the University of Washington ...
Earth Sciences
Dec 19, 2013
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A new study suggests the next big quake on the Seattle fault may cause devastating damage from landslides, greater than previously thought and beyond the areas currently defined as prone to landslides. Published online Oct. ...
Earth Sciences
Oct 21, 2013
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A tiny chip used in smart phones to adjust the orientation of the screen could serve to create a real-time urban seismic network, easily increasing the amount of strong motion data collected during a large earthquake, according ...
Engineering
Sep 29, 2013
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New evidence suggests the 1906 earthquake ruptured the San Andreas Fault in a single trace through Portola Village, current day Town of Portola Valley, and indicates a revised location for the fault trace.
Earth Sciences
Aug 2, 2013
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