Earthquake Information for Colusa County, California

Colusa County, CA has a high earthquake risk, with a total of 27 earthquakes since 1931. The USGS database shows that there is a 75.71% chance of a major earthquake within 50km of Colusa County, CA within the next 50 years. The largest earthquake within 30 miles of Colusa County, CA was a 4.1 Magnitude in 1994.

Risk Level:
High
Total Number of Earthquakes in Colusa County since 1931
27
Probability of A 5.0 Earthquake within next 50 years
75.71%

Earthquake Probability for Colusa County, CA

View the probability of a major earthquake within the next 50 years in Colusa 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
75.71%
5.1
70.56%
5.2
70.56%
5.2
65.45%
5.3
60.53%
5.4
55.90%
5.5
51.65%
5.6
47.80%
5.7
44.36%
5.8
41.33%
5.9
38.69%
6.0
36.40%
6.1
34.04%
6.2
32.00%
6.3
30.16%
6.4
28.41%
6.5
26.94%
6.6
25.05%
6.7
23.23%
6.8
20.89%
6.9
17.46%
7.0
12.23%
7.1
8.58%
7.2
5.29%
7.3
2.61%
7.4
0.93%
7.5
0.06%
7.6
0.00%
7.7
0.00%
7.8
0.00%
7.9
0.00%
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%