Ramona Earthquake Information

Ramona Earthquake Risk Grade

The USGS database shows that there is a 0.613% chance of a major earthquake within 50 miles of Ramona, South Dakota within the next 50 years. The largest earthquake within 50 miles of Ramona, South Dakota was a 3.6 Magnitude in 1982.

Probability of earthquakes within the next 50 years

Within 31 Miles / 50km above magnitude

Magnitude
Probability
5.0
0.613%
5.1
0.492%
5.2
0.492%
5.3
0.394%
5.4
0.316%
5.5
0.253%
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5.6
0.233%
5.7
0.187%
5.8
0.162%
5.9
0.129%
6.0
0.119%
6.1
0.091%
6.2
0.077%
6.3
0.056%
6.4
0.050%
6.5
0.034%
6.6
0.025%
6.7
0.021%
6.8
0.010%
6.9
0.005%
7.0
0.003%
7.1
0.001%
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.