Earthquake Information for Port Alexander, Alaska

Port Alexander, AK has a high earthquake risk, with a total of 19 earthquakes since 1931. The USGS database shows that there is a 39.91% chance of a major earthquake within 50km of Port Alexander, AK within the next 50 years. The largest earthquake within 30 miles of Port Alexander, AK was a 4.5 Magnitude in 2001.

Risk Level:
High
Total Number of Earthquakes in Port Alexander since 1931 within 30 miles
19
Probability of A 5.0 Earthquake within next 50 years
39.91%

Earthquake Probability for Port Alexander, AK

View the probability of a major earthquake within the next 50 years in Port Alexander, AK.

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2
(within 31 km/51 miles above magnitude)
MAGNITUDE
PROBABILITY
5.0
39.91%
5.1
34.56%
5.2
34.56%
5.2
29.77%
5.3
25.54%
5.4
21.83%
5.5
18.63%
5.6
15.87%
5.7
13.52%
5.8
11.51%
5.9
9.82%
6.0
8.39%
6.1
6.99%
6.2
5.82%
6.3
4.81%
6.4
3.97%
6.5
3.24%
6.6
2.61%
6.7
2.09%
6.8
1.61%
6.9
1.20%
7.0
0.83%
7.1
0.52%
7.2
0.24%
7.3
0.00%
7.4
0.00%
7.5
0.00%
7.6
0.00%
7.7
0.00%
7.8
0.00%
7.9
0.00%
8.0
0.00%
8.1
0.00%
8.2
0.00%
8.3
0.00%
8.4
0.00%
8.5
0.00%
8.6
0.00%
8.7
0.00%
8.8
0.00%
8.9
0.00%
9.0
0.00%
9.1
0.00%
9.2
0.00%