Location of earthquake east-southeast of Ocean City on January 15. (American Geological Survey) At 6.30 pm. On Tuesday, an earthquake with a magnitude of 4.7 hit about 136 miles off the coast southeast of Ocean City, Maryland. U.S. Geological Survey reported the quake, which took place about six miles deep. The agency has registered a dozen reports of shaking. Most of them come from or close to the Atlantic coast between southeast New York and the Outer Banks in North Carolina. However, a handful of witnesses felt trembling in the Washington region. The intensity of shaking varied between & # 39; weak & # 39; and & # 39; light & # 39 ;. How could an earthquake so far be felt offshore over land? Jana Pursley, a geophysicist for USGS, told the Delmarva Times that the earth's crust in this region is rigid compared to the west coast, allowing earthquakes to be felt over longer distances from the epicenter. But she added that the shaking would probably not do any damage. No tsunami threat has been reported as a result of the earthquake. The last notable earthquake that affected the affected region on November 30, 2017, six miles northeast of Dover, Del., At magnitude 4.1.