While earthquakes are relatively uncommon in the Northeast, the events highlight the region's ongoing seismic activity.

HILLSDALE, N.J. (AP) — A second small earthquake rattled the New York metropolitan area on Tuesday within several days of another. The 2.7 magnitude earthquake struck a little after noon near suburban Hillsdale, New Jersey, about 10 miles (16 kilometers) northwest of the Bronx in New York City, according to the U.S. Geological Survey.

Multiple earthquakes shook Southern California hours after a tremor was felt on the East Coast on Aug. 5, according to data from the U.S. Geological Survey. One quake hit Rialto, California,