Climate News Network: Sandy, the superstorm that all but submerged New York, was powerful enough to set U.S. earthquake detectors quivering long before it hit the American coastline.
It stirred up Atlantic Ocean waves that slammed into each other, started to shake the sea floor and then shook the Midwestern states so vigorously that the storm's progress could be tracked by seismometer.
The windstorm-induced tremors were very tiny, and not unusual -- and say as much about the sensitivity of modern seismometers as...