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Parkfield |
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Parkfield, uninc. town (2000 pop. 37), Monterey co., Calif., among rolling hills in the Coast Ranges. A mining center for mercury and coal in the early 1900s, when the town had 900 inhabitants, Parkfield is today best known as the "earthquake capital of the world." From 1857 to 1966 six magnitude 6 earthquakes occurred along the San Andreas fault San Andreas fault, great fracture (see fault ) of the earth's crust in California. It is the principal fault of an intricate network of faults extending more than 600 mi (965 km) from NW California to the Gulf of California. ..... Click the link for more information. near Parkfield. Because the earthquakes occurred at average intervals of 22 years, in the mid-1980s seismologists began setting up a number of different types of monitoring equipment in the local area in hopes of learning more about earthquakes and how to predict them. Since then, Parkfield has become the most intensively monitored seismological site in the world. The much anticipated seventh quake occurred later than expected on Sept. 28, 2004. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| In that scenario, shock waves barrel 180 miles from Parkfield in the Central Valley and shake a hypothetical high-rise built to 1982 code standards on Canoga Avenue in Woodland Hills or in any of 636 other locations from eastern Ventura County to Orange County. Instead of drilling into an area of the fault where violent--but infrequent--quakes occur, researchers set up a drilling site on a remote ranch in Parkfield, California. The segment of the San Andreas running through Parkfield has become one of the best-studied faults in the world because it appears to snap regularly every few decades, producing strong earthquakes. |
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