Earthquake Information for Siskiyou County, California

Siskiyou County, CA has a moderate earthquake risk, with a total of 111 earthquakes since 1931. The USGS database shows that there is a 25.22% chance of a major earthquake within 50km of Siskiyou County, CA within the next 50 years. The largest earthquake within 30 miles of Siskiyou County, CA was a 3.9 Magnitude in 2019.

Risk Level:
Moderate
Total Number of Earthquakes in Siskiyou County since 1931
111
Probability of A 5.0 Earthquake within next 50 years
25.22%

Earthquake Probability for Siskiyou County, CA

View the probability of a major earthquake within the next 50 years in Siskiyou 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
25.22%
5.1
22.06%
5.2
22.06%
5.2
19.32%
5.3
16.98%
5.4
14.97%
5.5
13.27%
5.6
11.83%
5.7
10.61%
5.8
9.58%
5.9
8.72%
6.0
7.99%
6.1
7.29%
6.2
6.69%
6.3
6.17%
6.4
5.73%
6.5
5.36%
6.6
4.40%
6.7
3.58%
6.8
2.87%
6.9
2.26%
7.0
1.75%
7.1
1.32%
7.2
0.95%
7.3
0.65%
7.4
0.39%
7.5
0.18%
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%