Earthquake Information for Clatsop County, Oregon

Clatsop County, OR has a moderate earthquake risk, with a total of 5 earthquakes since 1931. The USGS database shows that there is a 18.43% chance of a major earthquake within 50km of Clatsop County, OR within the next 50 years. The largest earthquake within 30 miles of Clatsop County, OR was a 3.5 Magnitude in 2016.

Risk Level:
Moderate
Total Number of Earthquakes in Clatsop County since 1931
5
Probability of A 5.0 Earthquake within next 50 years
18.43%

Earthquake Probability for Clatsop County, OR

View the probability of a major earthquake within the next 50 years in Clatsop County, OR.

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
18.43%
5.1
17.47%
5.2
17.47%
5.2
16.66%
5.3
15.98%
5.4
15.40%
5.5
14.91%
5.6
14.50%
5.7
14.16%
5.8
13.87%
5.9
13.62%
6.0
13.41%
6.1
13.20%
6.2
13.01%
6.3
12.85%
6.4
12.70%
6.5
12.57%
6.6
11.88%
6.7
11.23%
6.8
10.62%
6.9
10.05%
7.0
9.50%
7.1
9.03%
7.2
8.57%
7.3
8.56%
7.4
8.56%
7.5
8.56%
7.6
8.56%
7.7
8.56%
7.8
8.56%
7.9
8.56%
8.0
8.56%
8.1
8.26%
8.2
7.97%
8.3
7.67%
8.4
7.08%
8.5
6.47%
8.6
5.83%
8.7
5.16%
8.8
4.51%
8.9
3.62%
9.0
3.62%
9.1
0.92%
9.2
0.92%