Virginia Earthquake History on Prezi

  • The USGS reported more than 70 aftershocks with a magnitude over 1.6 since the main tremor.
  • Four aftershocks occurred only within 12 hours of the main quake.
  • The largest recorded aftershock was a magnitude 3.9 and occurred two days after the original quake.
  • More recently, a magnitude-3.1 aftershock struck near the epicenter in Louisa County on March 26, 2012.

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