Pennsylvania vs Utah Earthquake Risk

Utah has a higher earthquake risk with a score of 7/10 (High) compared to Pennsylvania at 2/10 (Low). This means Utah faces more frequent and potentially more destructive seismic events.

Pennsylvania averages approximately 3 earthquakes per year, while Utah averages about 200 per year. Utah experiences roughly 197 more earthquakes annually.

Pennsylvania is associated with Minor intraplate zones. Utah is associated with Wasatch Fault 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 80% in Utah. Utah has a larger percentage of residents exposed to seismic hazard.

Pennsylvania's most notable earthquake: 1994 Reading (M4.6). Utah's most notable earthquake: 2020 Magna (M5.7). These historical events illustrate the seismic potential of each state.