Casco Earthquake Information

Casco Earthquake Risk Grade

The USGS database shows that there is a 2.880% chance of a major earthquake within 50 miles of Casco, Maine within the next 50 years. The largest earthquake within 50 miles of Casco, Maine was a 4.3 Magnitude in 1983.

Probability of earthquakes within the next 50 years

Within 31 Miles / 50km above magnitude

Magnitude
Probability
5.0
2.880%
5.1
2.341%
5.2
2.341%
5.3
1.905%
5.4
1.554%
5.5
1.271%
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5.6
1.182%
5.7
0.971%
5.8
0.859%
5.9
0.711%
6.0
0.665%
6.1
0.535%
6.2
0.467%
6.3
0.374%
6.4
0.344%
6.5
0.269%
6.6
0.229%
6.7
0.207%
6.8
0.153%
6.9
0.125%
7.0
0.109%
7.1
0.068%
7.2
0.047%
7.3
0.036%
7.4
0.015%
7.5
0.002%
7.6
0.002%
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.