Altadena, CA has a very high earthquake risk, with a total of 6,967 earthquakes since 1931. The USGS database shows that there is a 97.50% chance of a major earthquake within 50km of Altadena, CA within the next 50 years. The largest earthquake within 30 miles of Altadena, CA was a 6.7 Magnitude in 1994.
View the probability of a major earthquake within the next 50 years in Altadena, CA.
View the number of earthquake incidents in Altadena, CA by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Altadena, CA within 30 miles. All distances and depths in the table are measured in miles.