Ohio vs Pennsylvania Earthquake Risk

Ohio and Pennsylvania share the same risk score of 2/10 (Low). Both states face similar levels of seismic hazard, though the specific fault systems and earthquake characteristics differ.

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

Ohio is associated with Anna Seismic Zone, induced seismicity. Pennsylvania is associated with Minor intraplate zones. These fault systems determine the type and frequency of seismic activity each state experiences.

In Ohio, approximately 5% of the population lives in areas at risk from earthquakes, compared to 3% in Pennsylvania. Ohio has a larger percentage of residents exposed to seismic hazard.

Ohio's most notable earthquake: 1986 Perry (M5.0). Pennsylvania's most notable earthquake: 1994 Reading (M4.6). These historical events illustrate the seismic potential of each state.