Some may be curious of the U.S. fault lines with earthquakes in the news lately. The fact is most states are at risk of major earthquakes, with 39 of the 50 states in moderate to high risk areas for seismic activity
The Earth might have a more turbulent past—and hence a more turbulent future—than we thought. Dr. Susan Hough of the US Geological Survey argues that hidden throughout history are a glut of giant earthquakes that either went unrecorded or have been underestimated. The upshot being that the risk of future "big one" quakes is likely higher than we've been assuming.