Update : Virginia Earthquake Caused Liquefaction Discovered : September 16, 2011

ny earthquake whose effects were as widespread as the one that rattled the East Coast on Aug. 23 demands investigation of the impacted area, but in this case, researchers faced a rare challenge — Hurricane Irene, which made landfall Aug. 27 and meant scientists only had a matter of days before the storm's rains erased the evidence. But even with this unusual challenge, investigators succeeded in quickly discovering key details about the quake's effects before the storm washed them away. "We feel pretty good about what we were able to document in such a limited amount of time," said civil and environmental engineer James R. Martin II, director of the World Institute for Disaster Risk Management at Virginia Tech in Blacksburg. Widespread shaking The quake, centered near Mineral, Va., was a magnitude 5.8 East Coast event felt as far south as Georgia and as far north as Montreal. Damage from the earthquake was relatively light, but effects were nevertheless seen at two landmarks in Washington, the Washington Monument and the National Cathedral, with additional damage reports coming from as far away as New York City, about 320 miles (515 kilometers) north. The quake also triggered the shutdown of the nuclear reactors at the North Anna Power Plant located near the epicenter, in Louisa County, Va. Although the quake was not expected to wreak significant damage, it is nonetheless important to carefully investigate what effects it had, Martin said. "The quake perhaps was a preview ...

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