Large quakes can weaken fault zones worldwide
US seismologists have found evidence that the massive 2004 earthquake that triggered killer tsunamis throughout the Indian Ocean weakened at least a portion of California's famed San Andreas Fault, which suggests that large quakes can weaken fault zones worldwide.
Geologists find East Coast quakes travel farther earthquake centered in Virginia shows East Coast tremors can travel much farther and cause damage over larger areas than previously thought, the US Geological Survey said Tuesday.