Earthquake Information for Snohomish County, Washington

Snohomish County, WA has a high earthquake risk, with a total of 78 earthquakes since 1931. The USGS database shows that there is a 64.81% chance of a major earthquake within 50km of Snohomish County, WA within the next 50 years. The largest earthquake within 30 miles of Snohomish County, WA was a 3.8 Magnitude in 1980.

Risk Level:
High
Total Number of Earthquakes in Snohomish County since 1931
78
Probability of A 5.0 Earthquake within next 50 years
64.81%

Earthquake Probability for Snohomish County, WA

View the probability of a major earthquake within the next 50 years in Snohomish 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
64.81%
5.1
58.89%
5.2
58.89%
5.2
53.16%
5.3
47.74%
5.4
42.71%
5.5
38.11%
5.6
33.95%
5.7
30.24%
5.8
26.95%
5.9
24.05%
6.0
21.51%
6.1
18.97%
6.2
16.71%
6.3
14.66%
6.4
12.85%
6.5
11.19%
6.6
9.20%
6.7
7.44%
6.8
5.93%
6.9
4.86%
7.0
3.45%
7.1
2.30%
7.2
1.21%
7.3
0.71%
7.4
0.39%
7.5
0.18%
7.6
0.08%
7.7
0.02%
7.8
0.01%
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%

Washington Earthquakes by City

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