Seismologists working along California's San Andreas Fault near Cholame and Parkfield now have a better idea of how and where friction changes along the fault to produce both shallow earthquakes and the deeper earth tremors ...
Earth Sciences
Jan 25, 2016
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163
The deep injection of wastewater underground is responsible for the dramatic rise in the number of earthquakes in Colorado and New Mexico since 2001, according to a study to be published in the Bulletin of the Seismological ...
Earth Sciences
Sep 15, 2014
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0
New information about the extent of the 1872 Owens Valley earthquake rupture, which occurs in an area with many small and discontinuous faults, may support a hypothesis proposed by other workers that these types of quakes ...
Earth Sciences
Mar 20, 2013
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The Osaka Basin, Japan is home to many high-rise buildings that sit atop its thick soft sediments, vulnerable to long-period strong ground motions that last minutes. A new map created by Japanese researchers is intended to ...
Earth Sciences
Feb 4, 2013
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The Pacific and North America plate boundary off the coast of British Columbia and southeastern Alaska is a complex system of faults capable of producing very large earthquakes. The recent 2012 Mw 7.8 Haida Gwaii and 2013 ...
Earth Sciences
Apr 6, 2015
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37
If a volcano explodes in the remote reaches of Alaska, will anyone hear it? Seismologists working in the state say yes—after using a refined set of methods that allows them to detect and locate the airwaves generated by ...
Earth Sciences
Apr 4, 2016
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26
In the absence of long-term instrumental data, fragile rock formations, called hoodoos, may be key to understanding seismic hazard risk. In this study, researchers consider two hoodoos in Red Rock Canyon region to put limits ...
Earth Sciences
Feb 4, 2013
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0
(Phys.org)—Hidden beneath ocean waves and masked by sand and mud on the seafloor, underwater faults are notoriously difficult to see and even more difficult to study. As a result, geologists struggle to evaluate the risks ...
Earth Sciences
Jan 31, 2013
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0
A rupture along the full length of the fast-slipping Alpine Fault on New Zealand's South Island poses the largest potential seismic threat to the southern and central parts of the country. But new evidence of a 19th century ...
Earth Sciences
Dec 1, 2020
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7
New mechanical modeling of a network of active strike-slip faults in California's Imperial Valley suggests the faults are continuously linked, from the southern San Andreas Fault through the Imperial Fault to the Cerro Prieto ...
Earth Sciences
Jun 12, 2019
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