http://www.marketwatch.com/news/newsfinder/pulseone.asp?dateid=38453.5184868981-834050495&siteID=mktw&scid=0&doctype=806&property=symb&value=&categories=&SAN FRANCISCO (MarketWatch) -- Northern Peru was hit with a magnitude 6.1 earthquake on Monday, according to the U.S. Geological Survey. The temblor struck at 10:54 am ET.
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here's what I found on earthquakes in Peru:
http://www2.ess.ucla.edu/~giovanni/peru.htmlexcerpt:
Previous earthquakes in 1868, 1784, and 1604 ruptured the same segment of the plate boundary as the 2001 earthquake. Based on intensity and tsunami reports the 1868 and 1604 events were larger than the 2001 earthquake while the 1784 event may have been smaller. Assuming the last earthquake to rupture the southern Peru segment was 1896 then the time between events (133 years) and a convergent rate of 9 cm/yr suggests 12 meters of accumulated tectonic slip prior to the 2001 earthquake. Preliminary estimates of the slip during the rupture of the largest asperity during the 2001 earthquake are 9 to 15 meters, suggesting that a portion of the plate boundary was locked between events. The occurrence of the 2001 earthquake provides further evidence that the mode and size of earthquake rupture along the Peru coast has changed between successive earthquake cycles.

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