Earthquake Information for Ephrata, Washington

Ephrata, WA has a moderate earthquake risk, with a total of 38 earthquakes since 1931. The USGS database shows that there is a 13.71% chance of a major earthquake within 50km of Ephrata, WA within the next 50 years. The largest earthquake within 30 miles of Ephrata, WA was a 4.8 Magnitude in 1973.

Risk Level:
Moderate
Total Number of Earthquakes in Ephrata since 1931 within 30 miles
38
Probability of A 5.0 Earthquake within next 50 years
13.71%

Earthquake Probability for Ephrata, WA

View the probability of a major earthquake within the next 50 years in Ephrata, 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
13.71%
5.1
11.55%
5.2
11.55%
5.2
9.71%
5.3
8.15%
5.4
6.84%
5.5
5.73%
5.6
4.79%
5.7
4.01%
5.8
3.35%
5.9
2.81%
6.0
2.35%
6.1
1.92%
6.2
1.56%
6.3
1.25%
6.4
0.99%
6.5
0.76%
6.6
0.57%
6.7
0.40%
6.8
0.25%
6.9
0.11%
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%