Arkansas vs California Earthquake Risk

California has a higher earthquake risk with a score of 10/10 (Very High) compared to Arkansas at 5/10 (Moderate). This means California faces more frequent and potentially more destructive seismic events.

Arkansas averages approximately 40 earthquakes per year, while California averages about 10,000 per year. California experiences roughly 9,960 more earthquakes annually.

Arkansas is associated with New Madrid Seismic Zone (NE corner). California is associated with San Andreas, Hayward, San Jacinto, Cascadia. These fault systems determine the type and frequency of seismic activity each state experiences.

In Arkansas, approximately 20% of the population lives in areas at risk from earthquakes, compared to 98% in California. California has a larger percentage of residents exposed to seismic hazard.

Arkansas's most notable earthquake: 1811 New Madrid (epicenter nearby). California's most notable earthquake: 1906 San Francisco (M7.9). These historical events illustrate the seismic potential of each state.