Tucson, AZ has a moderate earthquake risk, with a total of 0 earthquakes since 1931. The USGS database shows that there is a 16.95% chance of a major earthquake within 50km of Tucson, AZ within the next 50 years.
View the probability of a major earthquake within the next 50 years in Tucson, AZ.
See Arizona Earthquake Report or Pima County, AZ Earthquake Report