Indiana vs Pennsylvania Earthquake Risk

Indiana 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.

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

Indiana is associated with Wabash Valley Seismic Zone. Pennsylvania is associated with Minor intraplate zones. These fault systems determine the type and frequency of seismic activity each state experiences.

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

Indiana's most notable earthquake: 2008 Mt. Carmel (M5.2, nearby). Pennsylvania's most notable earthquake: 1994 Reading (M4.6). These historical events illustrate the seismic potential of each state.