Earthquake Information for California

Yearly Average Number of Earthquakes in California
2,126
Total Number of Earthquakes in California since 1931
176,481
Counties With The Highest Risk Of Earthquakes
Select a year:
  • Calaveras County, CA Probability: 19.407%
  • Shasta County, CA Probability: 23.804%
  • Amador County, CA Probability: 24.651%
  • Siskiyou County, CA Probability: 25.221%
  • Modoc County, CA Probability: 30.487%
  • Sacramento County, CA Probability: 38.722%
  • Tehama County, CA Probability: 39.629%
  • Del Norte County, CA Probability: 40.547%
  • Mariposa County, CA Probability: 42.145%
  • Sutter County, CA Probability: 42.458%
  • Yuba County, CA Probability: 46.817%
  • Fresno County, CA Probability: 47.575%
  • Tuolumne County, CA Probability: 47.729%
  • Trinity County, CA Probability: 49.454%
  • Madera County, CA Probability: 49.742%
  • Butte County, CA Probability: 50.666%
  • Tulare County, CA Probability: 51.420%
  • Lassen County, CA Probability: 55.832%
  • Glenn County, CA Probability: 60.910%
  • El Dorado County, CA Probability: 60.939%
  • San Francisco County, CA Probability: 64.885%
  • Placer County, CA Probability: 68.257%
  • Inyo County, CA Probability: 74.970%
  • Colusa County, CA Probability: 75.714%
  • Merced County, CA Probability: 79.334%
  • Mendocino County, CA Probability: 79.409%
  • San Joaquin County, CA Probability: 79.668%
  • Nevada County, CA Probability: 79.893%
  • San Bernardino County, CA Probability: 80.130%
  • Yolo County, CA Probability: 80.203%
  • Stanislaus County, CA Probability: 80.615%
  • Santa Barbara County, CA Probability: 80.723%
  • Kings County, CA Probability: 80.725%
  • Plumas County, CA Probability: 86.639%
  • San Luis Obispo County, CA Probability: 87.559%
  • Kern County, CA Probability: 89.667%
  • Alpine County, CA Probability: 90.113%
  • Lake County, CA Probability: 90.262%
  • Sonoma County, CA Probability: 90.283%
  • Marin County, CA Probability: 91.006%
  • Sierra County, CA Probability: 93.174%
  • San Diego County, CA Probability: 93.518%
  • Ventura County, CA Probability: 93.549%
  • Humboldt County, CA Probability: 94.840%
  • Solano County, CA Probability: 95.171%
  • Orange County, CA Probability: 95.313%
  • Napa County, CA Probability: 96.201%
  • Los Angeles County, CA Probability: 97.521%
  • Imperial County, CA Probability: 97.630%
  • Contra Costa County, CA Probability: 98.419%
  • San Mateo County, CA Probability: 98.537%
  • Riverside County, CA Probability: 98.808%
  • Mono County, CA Probability: 99.292%
  • Monterey County, CA Probability: 99.424%
  • Alameda County, CA Probability: 99.514%
  • Santa Cruz County, CA Probability: 99.684%
  • Santa Clara County, CA Probability: 99.942%
  • San Benito County, CA Probability: 99.966%
  • California Earthquake by county
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