A minor earthquake was reported by the U.S. Geological Survey today at 4:47 p.m. about six miles northeast of Dover, southeast of Smyrna.

UPDATE Thursday, Nov. 30, 5:45 p.m.

The U.S. Geological Survey has revised the magnitude of the earthquake between Smyrna and Dover to 4.1. A magnitude of 4.4 had been reported earlier.

The Delaware Emergency Management Agency reports that the coordinates of the quake (39.2N 75.4W) are in the Bombay Hook National Wildlife Refuge, at a depth of eight miles.

Dover Mayor Robin Christiansen said city utility crews were put on standby as a result of the trembler. No damage has been reported, Christiansen said.

"There are no reports of damage or injuries at this time," said Gary L. Laing, DEMA community relations officer.

Anyone sustaining serious damage of an emergency nature to a building or home should call 911 to report it.

However, don't call 911 simply to inquire if an earthquake occurred as it is important to keep the phone lines open for emergencies, Laing said.

"If you use propane gas and you suspect a leak, shut off the valve from outside and vacate the dwelling or building. If a gas leak is suspected, do not use electrical switches or appliances," Laing said. "Check any hanging objects or items on overhead shelves to make sure they have not been loosened by the earthquake.

"If there has been damage to electrical wiring, shut off the electricity and report it to your electric provider. Look for cracks or damage to chimneys and masonry walls. Report any downed power lines, but stay away from them. When opened cupboards or closets, watch for items that may fall out and cause injury."

ORIGINAL REPORT Thursday, Nov. 30, 5:05 p.m.

A magnitude 4.4 earthquake was reported by the U.S. Geological Survey today, Nov. 30, at 4:47 p.m. about six miles northeast of Dover, southeast of Smyrna.

According to the U.S. Geological Survey, earthquakes east of the Rocky Mountains, although less frequent than in the West, are typically felt over a much broader region than earthquakes of similar magnitude in the west.

East of the Rockies, an earthquake can be felt over an area more than 10 times larger than a similar magnitude earthquake on the west coast.

It would not be unusual for a magnitude 4.0 earthquake in eastern or central North America to be felt by a significant percentage of the population in many communities more than 100 kilometers (about 60 miles) from its source.