Arizona vs Hawaii Earthquake Risk

Hawaii has a higher earthquake risk with a score of 8/10 (High) compared to Arizona at 3/10 (Low-Moderate). This means Hawaii faces more frequent and potentially more destructive seismic events.

Arizona averages approximately 20 earthquakes per year, while Hawaii averages about 500 per year. Hawaii experiences roughly 480 more earthquakes annually.

Arizona is associated with Basin and Range faults. Hawaii is associated with Volcanic hotspot activity, Hilina slump. These fault systems determine the type and frequency of seismic activity each state experiences.

In Arizona, approximately 15% of the population lives in areas at risk from earthquakes, compared to 90% in Hawaii. Hawaii has a larger percentage of residents exposed to seismic hazard.

Arizona's most notable earthquake: 1887 Sonoran (M7.2, felt in AZ). Hawaii's most notable earthquake: 2018 Kilauea (M6.9). These historical events illustrate the seismic potential of each state.