The snow and ice dumped by an unusually severe winter storm were melting, once-frigid temperatures were rising and residents of South Carolina and Georgia finally had begun to relax.

Then the earth shuddered.

A small earthquake shook both states late Friday, shaking homes and rattling residents in those states and in North Carolina.

The quake happened at 10:23 p.m. and had a preliminary magnitude of 4.1, according to the U.S. Geological Survey’s Web site. It was centered seven miles west of Edgefield, S.C., and was felt as far west as Atlanta and as far north as Hickory, N.C., each about 150 miles away.

“It’s a large quake for that area,” said USGS geophysicist Dale Grant. “It was felt all over the place.”

The U.S. Army Corps of Engineers reported two nearby dams on the Savannah River appeared to be undamaged but planned a thorough inspection Saturday morning, Edgefield County Emergency Preparedness Director Mike Casey said.

Casey said the quake was centered in a sparsely populated part of Edgefield County, home to a lot more rabbits and deer than people. He drove around and hadn’t found any damage, but he said he expects some reports of minor damages once the sun rises.

“To get an accurate assessment, we’re going to need daylight,” Casey said. “I could be looking at damage in the dark and not know it. Tomorrow morning, I go out to get my paper, and I see the bricks in my house are cracked.”

Authorities across South Carolina said 911 centers were inundated with calls of people reporting what they thought were explosions or plane crashes as the quake’s low rumble spread.

Reports surfaced on Twitter of a leaking water tower in Augusta, Ga. But the tower was damaged by ice from a winter storm earlier this week and not the temblor, said Richmond County Sheriff’s Lt. Tangela McCorkle.

No damages or injuries from the quake had been reported, said South Carolina Emergency Management Division spokesman Derrec Becker. The ice storm felled a lot of trees in the area, which could make it more difficult to determine what damage was caused by the quake.

South Carolina Gov. Nikki Haley (R) felt the earthquake at the governor’s mansion in Columbia. She asked the Department of Transportation to inspect bridges in the area Saturday morning as a precaution, said her spokesman Doug Mayer.

A 4.3-magnitude earthquake happened in Georgia in August 1974. Three others of similar magnitude have been felt in South Carolina in the past 40 years, according to the USGS.

— Associated Press