Idaho vs Kentucky Earthquake Risk

Idaho has a higher earthquake risk with a score of 6/10 (Moderate-High) compared to Kentucky at 3/10 (Low-Moderate). This means Idaho faces more frequent and potentially more destructive seismic events.

Idaho averages approximately 100 earthquakes per year, while Kentucky averages about 10 per year. Idaho experiences roughly 90 more earthquakes annually.

Idaho is associated with Lost River, Lemhi, Beaverhead faults. Kentucky is associated with New Madrid (western KY). These fault systems determine the type and frequency of seismic activity each state experiences.

In Idaho, approximately 45% of the population lives in areas at risk from earthquakes, compared to 15% in Kentucky. Idaho has a larger percentage of residents exposed to seismic hazard.

Idaho's most notable earthquake: 1983 Borah Peak (M6.9). Kentucky's most notable earthquake: 1980 Sharpsburg (M5.2). These historical events illustrate the seismic potential of each state.