Shake map showing where 4.1-magnitude quake near Dover, Del. (USGS)A rare magnitude 4.1 earthquake occurred in eastern Delaware, about six miles northeast of Dover, at 4:47 p.m. eastern Thursday. “We’re just getting the information in now.”The Dover area is positioned in a relatively low risk zone for earthquakes according to a USGS hazard map. Data from the USGS suggest only three earthquakes magnitude 4.0 or higher have occurred between Washington and New York since 1950. A very small 1.5-magnitude tremor occurred between Olney and Sykesville, Md.

Source: Washington Post November 30, 2017 22:11 UTC