' Preshock '

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Untitled Note

Preshock

Sunday, January 05, 2014

6:00 PM

preshock: an earthquake that occurs before the mainshock, but is not an unambiguous foreshock, either because it originated months or years before the mainshock or because it originated far from the epicenter of the mainshock.

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Created: 2014-01-05
Updated: 2014-01-05