Aptos Earthquake Information

Aptos Earthquake Risk Grade

The USGS database shows that there is a 4.304% chance of a major earthquake within 50 miles of Aptos, California within the next 50 years. The largest earthquake within 50 miles of Aptos, California was a 6.9 Magnitude in 1989.

Probability of earthquakes within the next 50 years

Within 31 Miles / 50km above magnitude

Magnitude
Probability
5.0
4.304%
5.1
3.608%
5.2
3.028%
5.3
2.544%
5.4
2.141%
5.5
1.806%
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5.6
1.528%
5.7
1.297%
5.8
1.104%
5.9
0.945%
6.0
0.813%
6.1
0.688%
6.2
0.584%
6.3
0.487%
6.4
0.407%
6.5
0.337%
6.6
0.277%
6.7
0.224%
6.8
0.174%
6.9
0.132%
7.0
0.093%
7.1
0.059%
7.2
0.029%
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.