Earthquake Information for Brea, California

Brea, CA has a very high earthquake risk, with a total of 75 earthquakes since 1931. The USGS database shows that there is a 97.68% chance of a major earthquake within 50km of Brea, CA within the next 50 years. The largest earthquake within 30 miles of Brea, CA was a 5.7 Magnitude in 1990.

Risk Level:
Very High
Total Number of Earthquakes in Brea, CA since 1931
75

Earthquake Probability for Brea, CA

View the probability of a major earthquake within the next 50 years in Brea, CA.

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2
(within 31 km/51 miles above magnitude)

Probability of Earthquakes Within the Next 50 Years

(within 31 km/51 miles above magnitude)
MAGNITUDE
PROBABILITY
5.0
97.68%
5.1
96.32%
5.2
96.32%
5.2
94.61%
5.3
92.59%
5.4
90.34%
5.5
87.97%
5.6
85.55%
5.7
83.17%
5.8
80.90%
5.9
78.78%
6.0
76.84%
6.1
74.82%
6.2
72.99%
6.3
71.07%
6.4
66.98%
6.5
58.02%
6.6
50.79%
6.7
43.21%
6.8
36.96%
6.9
31.16%
7.0
25.52%
7.1
20.73%
7.2
16.46%
7.3
12.97%
7.4
10.55%
7.5
8.02%
7.6
5.89%
7.7
4.00%
7.8
2.23%
7.9
0.97%
8.0
0.16%
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%