Earthquake Information for Clark County, Washington

Clark County, WA has a high earthquake risk, with a total of 622 earthquakes since 1931. The USGS database shows that there is a 33.52% chance of a major earthquake within 50km of Clark County, WA within the next 50 years. The largest earthquake within 30 miles of Clark County, WA was a 4.5 Magnitude in 1980.

Risk Level:
High
Total Number of Earthquakes in Clark County since 1931
622
Probability of A 5.0 Earthquake within next 50 years
33.52%

Earthquake Probability for Clark County, WA

View the probability of a major earthquake within the next 50 years in Clark County, WA.

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
33.52%
5.1
29.75%
5.2
29.75%
5.2
26.44%
5.3
23.58%
5.4
21.11%
5.5
19.00%
5.6
17.19%
5.7
15.66%
5.8
14.37%
5.9
13.28%
6.0
12.36%
6.1
11.46%
6.2
10.54%
6.3
8.31%
6.4
7.69%
6.5
7.16%
6.6
5.82%
6.7
4.59%
6.8
3.48%
6.9
2.46%
7.0
1.49%
7.1
0.74%
7.2
0.05%
7.3
0.01%
7.4
0.00%
7.5
0.00%
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%