Earthquake Information for San Diego County, California

San Diego County, CA has a very high earthquake risk, with a total of 1,383 earthquakes since 1931. The USGS database shows that there is a 93.52% chance of a major earthquake within 50km of San Diego County, CA within the next 50 years. The largest earthquake within 30 miles of San Diego County, CA was a 4.5 Magnitude in 1973.

Risk Level:
Very High
Total Number of Earthquakes in San Diego County since 1931
1,383
Probability of A 5.0 Earthquake within next 50 years
93.52%

Earthquake Probability for San Diego County, CA

View the probability of a major earthquake within the next 50 years in San Diego County, CA.

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2
(within 31 km/51 miles above magnitude)
MAGNITUDE
PROBABILITY
5.0
93.52%
5.1
90.02%
5.2
90.02%
5.2
85.70%
5.3
80.72%
5.4
75.28%
5.5
69.60%
5.6
63.90%
5.7
58.35%
5.8
53.09%
5.9
48.21%
6.0
43.77%
6.1
39.33%
6.2
35.37%
6.3
31.55%
6.4
28.04%
6.5
24.13%
6.6
20.23%
6.7
16.69%
6.8
13.48%
6.9
10.84%
7.0
8.51%
7.1
7.24%
7.2
6.26%
7.3
5.48%
7.4
4.56%
7.5
3.32%
7.6
2.19%
7.7
1.24%
7.8
0.52%
7.9
0.15%
8.0
0.00%
8.1
0.00%
8.2
0.00%
8.3
0.00%
8.4
0.00%
8.5
0.00%
8.6
0.00%
8.7
0.00%
8.8
0.00%
8.9
0.00%
9.0
0.00%
9.1
0.00%
9.2
0.00%

California Earthquakes by City

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