11 Earthquakes Recorded in Coronaca and Lake Greenwood Area Over 65 Hours

CORONACA, S.C. — A cluster of earthquakes rattled parts of South Carolina over the weekend, with 11 quakes recorded in the Coronaca and Lake Greenwood area within a span of just 65 hours.

Series of Quakes Over Three Days

According to the United States Geological Survey (USGS), the earthquakes began early on Saturday, August 23, with the first striking around 12:15 a.m. The sequence continued until the evening of Monday, August 25, when the final quake was recorded at 7 p.m.

The strongest tremors measured 2.9 and 3.0 on the Richter Scale, both occurring in the early morning hours of August 23. The 3.0-magnitude quake was widely felt and reported across multiple states, including Texas, New York, and Rhode Island.

List of Recorded Earthquakes

• 2.9 magnitude at 12:17 a.m. on Aug. 23
• 3.0 magnitude at 12:23 a.m. on Aug. 23
• 2.5 magnitude at 12:41 a.m. on Aug. 23
• 1.9 magnitude at 12:49 a.m. on Aug. 23
• 2.0 magnitude at 1:21 a.m. on Aug. 23
• 2.4 magnitude at 2:53 a.m. on Aug. 23
• 1.8 magnitude at 3:39 a.m. on Aug. 23
• 2.1 magnitude at 3:19 p.m. on Aug. 23
• 1.8 magnitude at 10:20 p.m. on Aug. 24
• 2.0 magnitude at 2:51 p.m. on Aug. 25
• 1.7 magnitude at 5:04 p.m. on Aug. 25

Hundreds of people submitted reports of feeling the shaking to USGS throughout the three-day span.

State Officials Urge Preparedness

Following the unusual earthquake swarm, state leaders reminded residents that seismic events in South Carolina often strike without warning.

“Earthquakes can happen anywhere in South Carolina, and they often occur without warning,” one state leader said. “There are many fault lines under our feet, and we want every household to be informed, prepared, and resilient before the next event.”

Community Concerns

Though no major damage was reported, the frequency of the quakes has heightened concerns in communities near Lake Greenwood and Coronaca. Many residents say the repeated shaking left them uneasy, particularly given the widespread reach of the 3.0-magnitude quake.

South Carolina has experienced earthquake clusters before, most notably in the Charleston area, which remains one of the most seismically active regions on the East Coast. Experts say smaller swarms like this one highlight the need for preparedness even in areas that may not expect frequent seismic activity.

Have you felt one of the recent earthquakes near Lake Greenwood or Coronaca? Share your experience and preparedness tips with us at SaludaStandard-Sentinel.com.