There are 61 earthquake incidents in Massachusetts on record since 1931. The state averages 1 earthquakes per year. The largest earthquake on record for Massachusetts occurred on 12/09/1987, with a depth of 10.0 miles and a magnitude of 5.2 on the Richter scale in Nantucket County, MA.
Yearly Average Number of Earthquakes in Massachusetts
Total Number of Earthquakes in Massachusetts since 1931