Earthquake Information for Norco, California

Norco, CA has a very high earthquake risk, with a total of 18,761 earthquakes since 1931. The USGS database shows that there is a 99.26% chance of a major earthquake within 50km of Norco, CA within the next 50 years. The largest earthquake within 30 miles of Norco, CA was a 5.7 Magnitude in 1990.

Risk Level:
Very High
Total Number of Earthquakes in Norco since 1931 within 30 miles
18,761
Probability of A 5.0 Earthquake within next 50 years
99.26%

Earthquake Probability for Norco, CA

View the probability of a major earthquake within the next 50 years in Norco, 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
99.26%
5.1
98.74%
5.2
98.74%
5.2
98.04%
5.3
97.16%
5.4
96.13%
5.5
95.00%
5.6
93.82%
5.7
92.62%
5.8
91.45%
5.9
90.33%
6.0
89.29%
6.1
88.16%
6.2
87.12%
6.3
86.05%
6.4
84.03%
6.5
80.14%
6.6
76.38%
6.7
72.44%
6.8
68.68%
6.9
64.73%
7.0
60.58%
7.1
56.33%
7.2
52.04%
7.3
46.97%
7.4
41.90%
7.5
35.55%
7.6
28.41%
7.7
21.00%
7.8
14.43%
7.9
8.97%
8.0
4.51%
8.1
1.67%
8.2
0.30%
8.3
0.06%
8.4
0.01%
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%