N​early 75% of the country is at risk for a potentially damaging earthquake, according to a recently updated USGS map.
A minor, 3.8-magnitude earthquake struck in the Gulf of Maine on Monday, according to the United States Geological Survey.
A team of geologists coming from New Zealand, New Caledonia, Australia, the U.S., Denmark and Tasmania compiled a new geological map using a combination ... of a large fault zone along the south ...