Eastern earthquakes, such as the 5.8 magnitude quake that hit Virginia and surrounding states, are rare. There has not been a quake that strong there since 1897.
"I can't remember an event that large on the East Coast," said Paul Segall, a Stanford geophysicist who studies earthquake faults. He called Tuesday's event "a significant earthquake for that part of the world. It could do significant damage."
But even smaller quakes in the eastern U.S. can cause damage, because eastern cities...Full Story