Pennsylvania vs Virginia Earthquake Risk

Virginia has a higher earthquake risk with a score of 3/10 (Low-Moderate) compared to Pennsylvania at 2/10 (Low). This means Virginia faces more frequent and potentially more destructive seismic events.

Pennsylvania averages approximately 3 earthquakes per year, while Virginia averages about 5 per year. Virginia experiences roughly 2 more earthquakes annually.

Pennsylvania is associated with Minor intraplate zones. Virginia is associated with Central Virginia seismic zone. These fault systems determine the type and frequency of seismic activity each state experiences.

In Pennsylvania, approximately 3% of the population lives in areas at risk from earthquakes, compared to 10% in Virginia. Virginia has a larger percentage of residents exposed to seismic hazard.

Pennsylvania's most notable earthquake: 1994 Reading (M4.6). Virginia's most notable earthquake: 2011 Mineral (M5.8). These historical events illustrate the seismic potential of each state.