Earthquake Information for Coos County, Oregon

Coos County, OR has a moderate earthquake risk, with a total of 947 earthquakes since 1931. The USGS database shows that there is a 21.90% chance of a major earthquake within 50km of Coos County, OR within the next 50 years. The largest earthquake within 30 miles of Coos County, OR was a 3.2 Magnitude in 2016.

Risk Level:
Moderate
Total Number of Earthquakes in Coos County since 1931
947
Probability of A 5.0 Earthquake within next 50 years
21.90%

Earthquake Probability for Coos County, OR

View the probability of a major earthquake within the next 50 years in Coos 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
21.90%
5.1
21.76%
5.2
21.76%
5.2
21.64%
5.3
21.55%
5.4
21.47%
5.5
21.40%
5.6
21.35%
5.7
21.30%
5.8
21.26%
5.9
21.11%
6.0
20.70%
6.1
19.83%
6.2
18.59%
6.3
17.11%
6.4
15.77%
6.5
14.77%
6.6
13.56%
6.7
12.83%
6.8
12.06%
6.9
11.42%
7.0
10.82%
7.1
10.38%
7.2
10.11%
7.3
9.99%
7.4
9.96%
7.5
9.94%
7.6
9.94%
7.7
9.94%
7.8
9.94%
7.9
9.94%
8.0
9.94%
8.1
9.57%
8.2
9.20%
8.3
8.83%
8.4
8.11%
8.5
7.46%
8.6
6.85%
8.7
6.28%
8.8
5.72%
8.9
4.60%
9.0
4.60%
9.1
1.17%
9.2
1.17%