Grafton Earthquake Information

Grafton Earthquake Risk Grade

The USGS database shows that there is a 1.095% chance of a major earthquake within 50 miles of Grafton, Ohio within the next 50 years. The largest earthquake within 50 miles of Grafton, Ohio was a 3.7 Magnitude in 2007.

Probability of earthquakes within the next 50 years

Within 31 Miles / 50km above magnitude

Magnitude
Probability
5.0
1.095%
5.1
0.881%
5.2
0.881%
5.3
0.708%
5.4
0.569%
5.5
0.457%
5.6
0.422%
5.7
0.339%
5.8
0.295%
5.9
0.237%
6.0
0.218%
6.1
0.167%
6.2
0.140%
6.3
0.102%
6.4
0.090%
6.5
0.061%
6.6
0.045%
6.7
0.037%
6.8
0.018%
6.9
0.010%
7.0
0.005%
7.1
0.002%
7.2
0.000%
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.