Earthquake Information for Gilliam County, Oregon

Gilliam County, OR has a moderate earthquake risk, with a total of 32 earthquakes since 1931. The USGS database shows that there is a 14.25% chance of a major earthquake within 50km of Gilliam County, OR within the next 50 years. The largest earthquake within 30 miles of Gilliam County, OR was a 4.5 Magnitude in 1976.

Risk Level:
Moderate
Total Number of Earthquakes in Gilliam County since 1931
32
Probability of A 5.0 Earthquake within next 50 years
14.25%

Earthquake Probability for Gilliam County, OR

View the probability of a major earthquake within the next 50 years in Gilliam 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
14.25%
5.1
12.01%
5.2
12.01%
5.2
10.11%
5.3
8.49%
5.4
7.12%
5.5
5.97%
5.6
5.00%
5.7
4.18%
5.8
3.50%
5.9
2.93%
6.0
2.45%
6.1
2.00%
6.2
1.61%
6.3
1.29%
6.4
1.02%
6.5
0.79%
6.6
0.58%
6.7
0.41%
6.8
0.25%
6.9
0.12%
7.0
0.00%
7.1
0.00%
7.2
0.00%
7.3
0.00%
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%