Earthquake Information for Hercules, California

Hercules, CA has a very high earthquake risk, with a total of 3,769 earthquakes since 1931. The USGS database shows that there is a 98.47% chance of a major earthquake within 50km of Hercules, CA within the next 50 years. The largest earthquake within 30 miles of Hercules, CA was a 6.0 Magnitude in 2015.

Risk Level:
Very High
Total Number of Earthquakes in Hercules since 1931 within 50 miles
3,769
Probability of A 5.0 Earthquake within next 50 years
98.47%

Earthquake Probability for Hercules, CA

View the probability of a major earthquake within the next 50 years in Hercules, 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
98.47%
5.1
97.71%
5.2
97.71%
5.2
96.80%
5.3
95.77%
5.4
94.67%
5.5
93.53%
5.6
92.40%
5.7
91.32%
5.8
90.30%
5.9
89.36%
6.0
88.51%
6.1
87.66%
6.2
86.76%
6.3
85.79%
6.4
84.06%
6.5
80.68%
6.6
75.70%
6.7
70.04%
6.8
63.09%
6.9
54.73%
7.0
45.00%
7.1
37.86%
7.2
32.99%
7.3
29.14%
7.4
25.58%
7.5
21.12%
7.6
17.61%
7.7
14.23%
7.8
10.75%
7.9
7.06%
8.0
3.86%
8.1
2.43%
8.2
0.66%
8.3
0.32%
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%