Roy Earthquake Information

Roy Earthquake Risk Grade

The USGS database shows that there is a 87.180% chance of a major earthquake within 50 miles of Roy, Washington within the next 50 years. The largest earthquake within 50 miles of Roy, Washington was a 6.8 Magnitude in 2001.

Probability of earthquakes within the next 50 years

Within 31 Miles / 50km above magnitude

Magnitude
Probability
5.0
87.180%
5.1
83.297%
5.2
79.019%
5.3
74.453%
5.4
69.708%
5.5
64.886%
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5.6
60.075%
5.7
55.355%
5.8
50.780%
5.9
46.397%
6.0
42.237%
6.1
37.887%
6.2
33.766%
6.3
29.784%
6.4
26.055%
6.5
22.517%
6.6
18.863%
6.7
15.292%
6.8
11.856%
6.9
8.560%
7.0
5.402%
7.1
2.734%
7.2
0.269%
7.3
0.000%
7.4
0.000%
7.5
0.000%
7.6
0.000%
7.7
0.000%
7.8
0.000%
7.9
0.000%
8.0
0.000%
8.1
0.000%
8.2
0.000%
8.3
0.000%
8.4
0.000%
8.5
0.000%
8.6
0.000%
8.7
0.000%
8.8
0.000%
8.9
0.000%
9.0
0.000%
9.1
0.000%
9.2
0.000%

Historical Earthquake Data (Within 50 Miles)

All distances and depths in the table below are measured in miles.