South Carolina vs Virginia Earthquake Risk

South Carolina has a higher earthquake risk with a score of 5/10 (Moderate) compared to Virginia at 3/10 (Low-Moderate). This means South Carolina faces more frequent and potentially more destructive seismic events.

South Carolina averages approximately 15 earthquakes per year, while Virginia averages about 5 per year. South Carolina experiences roughly 10 more earthquakes annually.

South Carolina is associated with Middleton Place-Summerville Seismic Zone. Virginia is associated with Central Virginia seismic zone. These fault systems determine the type and frequency of seismic activity each state experiences.

In South Carolina, approximately 20% of the population lives in areas at risk from earthquakes, compared to 10% in Virginia. South Carolina has a larger percentage of residents exposed to seismic hazard.

South Carolina's most notable earthquake: 1886 Charleston (M7.3). Virginia's most notable earthquake: 2011 Mineral (M5.8). These historical events illustrate the seismic potential of each state.