The federal agency that keeps track of earthquakes would like to hear from coastal residents about two rumbles that shook houses Monday from the Outer Banks to Virginia Beach. There are occasional booms heard and felt along the Outer Banks occasionally, but the rumbles heard on Monday lasted as long 20 seconds. The first occurred at 4:24 p.m., according to the U.S. Geological Survey, and the second at 6:24 p.m.

When the 5.8-magnitude earthquake in Virginia shook our region in August of 2011, it was reported within minutes by the USGS. The USGS website marks the incident in Nags Head and provides a link asking residents if they had felt it. Offshore training by the Navy and sonic booms from jets are usually the explanation for shakes and rumbles. A 2.8-magnitude earthquake was recorded in Louisa County Sunday near the center of the 2011 temblor, according to Inside Nova.