Earthquake Information for Sitka, Alaska

Sitka, AK has a high earthquake risk, with a total of 13 earthquakes since 1931. The USGS database shows that there is a 46.90% chance of a major earthquake within 50km of Sitka, AK within the next 50 years. The largest earthquake within 30 miles of Sitka, AK was a 2.6 Magnitude in 2017.

Risk Level:
High
Total Number of Earthquakes in Sitka since 1931 within 30 miles
13
Probability of A 5.0 Earthquake within next 50 years
46.90%

Earthquake Probability for Sitka, AK

View the probability of a major earthquake within the next 50 years in Sitka, 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
46.90%
5.1
43.50%
5.2
43.50%
5.2
40.52%
5.3
37.93%
5.4
35.70%
5.5
33.79%
5.6
32.17%
5.7
30.79%
5.8
29.63%
5.9
28.65%
6.0
27.83%
6.1
27.01%
6.2
26.32%
6.3
25.72%
6.4
25.23%
6.5
24.80%
6.6
24.43%
6.7
24.12%
6.8
23.84%
6.9
23.60%
7.0
23.39%
7.1
23.20%
7.2
23.04%
7.3
22.89%
7.4
22.24%
7.5
18.42%
7.6
13.23%
7.7
7.77%
7.8
3.05%
7.9
0.95%
8.0
0.21%
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%