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How often do large earthquakes occur in the central U.S.?

April 26, 2017earthquakes large occur

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How often do large earthquakes occur in the central U.S.?

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Paleoseismic (geologic) studies conducted over the last few years have shown that sequences of earthquakes that were in the 7.5-8 magnitude range have occurred at least twice before, in approximately 900 and 1450 AD. This implies a recurrence interval of about 500 years.