Geologist explains the ‘very scary’ earthquake felt by Maryland, DC residents

Hundreds in and around the D.C. Metro area have reported feeling the effects of a small earthquake between Gaithersburg and Rockville, Maryland, according to data from the U.S. Geological Survey. Here’s what you need to know. Preliminary information reviewed by the agency placed the earthquake at a magnitude of 2.3, with more than 200 individuals reporting feeling a rumbling or loud noise.