Earthquake Information for Lassen County, California

Lassen County, CA has a high earthquake risk, with a total of 56 earthquakes since 1931. The USGS database shows that there is a 55.83% chance of a major earthquake within 50km of Lassen County, CA within the next 50 years. The largest earthquake within 30 miles of Lassen County, CA was a 5.0 Magnitude in 1976.

Risk Level:
High
Total Number of Earthquakes in Lassen County since 1931
56
Probability of A 5.0 Earthquake within next 50 years
55.83%

Earthquake Probability for Lassen County, CA

View the probability of a major earthquake within the next 50 years in Lassen 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
55.83%
5.1
50.37%
5.2
50.37%
5.2
45.32%
5.3
40.73%
5.4
36.62%
5.5
32.98%
5.6
29.80%
5.7
27.03%
5.8
24.65%
5.9
22.61%
6.0
20.88%
6.1
19.17%
6.2
17.72%
6.3
16.44%
6.4
15.36%
6.5
14.45%
6.6
12.95%
6.7
11.25%
6.8
9.12%
6.9
6.70%
7.0
3.97%
7.1
2.62%
7.2
1.77%
7.3
1.19%
7.4
0.72%
7.5
0.33%
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%