Boston has been rocked by an unlikely earthquake - with baffled Massachusetts residents shocked that their houses were shaking. According to the United States Geological Survey, a 4.1 magnitude ...

More than 23,000 reports from the public were received by USGS in the first hour after the earthquake, USGS spokeswoman ...

Time is indicated at the left end of the lines in Universal (or Greenwich) Time. When an earthquake occurs, the seismogram will show ground motion fluctuations that typically last from tens of seconds ...