Idaho vs Puerto Rico Earthquake Risk

Puerto Rico has a higher earthquake risk with a score of 7/10 (High) compared to Idaho at 6/10 (Moderate-High). This means Puerto Rico faces more frequent and potentially more destructive seismic events.

Idaho averages approximately 100 earthquakes per year, while Puerto Rico averages about 100 per year. Puerto Rico experiences roughly 0 more earthquakes annually.

Idaho is associated with Lost River, Lemhi, Beaverhead faults. Puerto Rico is associated with Puerto Rico Trench, Mona Passage. 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 95% in Puerto Rico. Puerto Rico has a larger percentage of residents exposed to seismic hazard.

Idaho's most notable earthquake: 1983 Borah Peak (M6.9). Puerto Rico's most notable earthquake: 2020 Guayanilla (M6.4). These historical events illustrate the seismic potential of each state.