MINERAL, Va. (AP) — Central Virginia has been shaken by another aftershock from last week’s earthquake.

The U.S. Geological Survey reports a 3.4 magnitude aftershock at 5:09 a.m. Thursday. The epicenter was 4 miles south-southeast of Mineral.

READ MORE: Fourth Of July Festivities Began In Baltimore County Sunday Evening

Mineral was the epicenter of last Tuesday’s 5.8-magnitude earthquake that rattled the East Coast. More than 20 aftershocks ranging from 4.5 to 1.8 have followed the earthquake.

READ MORE: Man Who Shot Wicomico Sheriff's Deputy Indicted On 18 Charges

Aftershocks are smaller tremors that take place in the weeks and possibly months following a major earthquake like the one centered in Virginia.

MORE NEWS: Baltimore County Police Ask For Help Finding Missing Woodlawn Teen

(Copyright 2011 by The Associated Press. All Rights Reserved.)