Oregon vs Utah Earthquake Risk

Oregon has a higher earthquake risk with a score of 8/10 (High) compared to Utah at 7/10 (High). This means Oregon faces more frequent and potentially more destructive seismic events.

Oregon averages approximately 500 earthquakes per year, while Utah averages about 200 per year. Oregon experiences roughly 300 more earthquakes annually.

Oregon is associated with Cascadia subduction zone, Klamath graben. Utah is associated with Wasatch Fault Zone. These fault systems determine the type and frequency of seismic activity each state experiences.

In Oregon, approximately 80% 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.

Oregon's most notable earthquake: 1993 Scotts Mills (M5.6). Utah's most notable earthquake: 2020 Magna (M5.7). These historical events illustrate the seismic potential of each state.