Earthquake Information for Port Alexander, Alaska

Port Alexander, AK has a high earthquake risk, with a total of 20 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

Probability of A 5.0 Earthquake within next 50 years

39.91%

Most Recent
Largest

3/27/2024 - 3.1 mag, 1.4mi depth 25.6668 mi from Port Alexander, AK
2/16/2021 - 2.3 mag, 5.2mi depth 20.2145 mi from Port Alexander, AK
9/4/2019 - 2.7 mag, 1.1mi depth 68.676 mi from Sitka, AK
4/28/2019 - 2.8 mag, 0.0mi depth 61.8034 mi from Craig, AK
9/3/2018 - 3.3 mag, 4.1mi depth 78.4708 mi from Sitka, AK
5/8/2017 - 3.3 mag, 25.7mi depth 56.0488 mi from Craig, AK
5/8/2013 - 1.7 mag, 21.4mi depth 27.1142 mi from Port Alexander, AK
5/4/2013 - 2.4 mag, 23.1mi depth 28.3039 mi from Port Alexander, AK
2/9/2013 - 3.5 mag, 24.5mi depth 29.847 mi from Port Alexander, AK
1/8/2013 - 4.3 mag, 10.0mi depth 28.0335 mi from Port Alexander, AK
1/5/2013 - 2.9 mag, 10.0mi depth 29.7458 mi from Port Alexander, AK
1/5/2013 - 2.5 mag, 10.0mi depth 23.7994 mi from Port Alexander, AK
1/5/2013 - 3.8 mag, 4.4mi depth 20.1576 mi from Port Alexander, AK
1/5/2013 - 2.6 mag, 13.9mi depth 29.0895 mi from Port Alexander, AK
1/5/2013 - 2.6 mag, 13.9mi depth 29.0895 mi from Port Alexander, AK
1/5/2013 - 2.5 mag, 2.6mi depth 27.533 mi from Port Alexander, AK
4/27/2011 - 2.9 mag, 1.0mi depth 23.0231 mi from Port Alexander, AK
1/8/2009 - 3.1 mag, 18.7mi depth 21.0001 mi from Port Alexander, AK
5/27/2007 - 2.7 mag, 64.6mi depth 16.7897 mi from Port Alexander, AK
7/9/2001 - 4.5 mag, 15.0mi depth 14.9497 mi from Port Alexander, AK

7/9/2001 - 4.5 mag, 15.0mi depth 14.9497 mi from Port Alexander, AK
1/8/2013 - 4.3 mag, 10.0mi depth 28.0335 mi from Port Alexander, AK
1/5/2013 - 3.8 mag, 4.4mi depth 20.1576 mi from Port Alexander, AK
2/9/2013 - 3.5 mag, 24.5mi depth 29.847 mi from Port Alexander, AK
9/3/2018 - 3.3 mag, 4.1mi depth 78.4708 mi from Sitka, AK
5/8/2017 - 3.3 mag, 25.7mi depth 56.0488 mi from Craig, AK
1/8/2009 - 3.1 mag, 18.7mi depth 21.0001 mi from Port Alexander, AK
3/27/2024 - 3.1 mag, 1.4mi depth 25.6668 mi from Port Alexander, AK
4/27/2011 - 2.9 mag, 1.0mi depth 23.0231 mi from Port Alexander, AK
1/5/2013 - 2.9 mag, 10.0mi depth 29.7458 mi from Port Alexander, AK
4/28/2019 - 2.8 mag, 0.0mi depth 61.8034 mi from Craig, AK
5/27/2007 - 2.7 mag, 64.6mi depth 16.7897 mi from Port Alexander, AK
9/4/2019 - 2.7 mag, 1.1mi depth 68.676 mi from Sitka, AK
1/5/2013 - 2.6 mag, 13.9mi depth 29.0895 mi from Port Alexander, AK
1/5/2013 - 2.6 mag, 13.9mi depth 29.0895 mi from Port Alexander, AK
1/5/2013 - 2.5 mag, 10.0mi depth 23.7994 mi from Port Alexander, AK
1/5/2013 - 2.5 mag, 2.6mi depth 27.533 mi from Port Alexander, AK
5/4/2013 - 2.4 mag, 23.1mi depth 28.3039 mi from Port Alexander, AK
2/16/2021 - 2.3 mag, 5.2mi depth 20.2145 mi from Port Alexander, AK
5/8/2013 - 1.7 mag, 21.4mi depth 27.1142 mi from Port Alexander, AK

View All

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)

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%

Earthquake Count for Port Alexander, AK

View the number of earthquake incidents in Port Alexander, AK by year that are more than 2.5 Magnitude.

List of Earthquake Incidents for Port Alexander, AK

Total Number of Earthquakes in Port Alexander, AK within 30 miles. All distances and depths in the table are measured in miles.

03/27/2024

3.1

1.4

25.67

Earthquake Information for Port Alexander, Alaska

Earthquake Probability for Port Alexander, AK

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2

Earthquake Count for Port Alexander, AK

List of Earthquake Incidents for Port Alexander, AK

Risk Of Natural Disasters In Port Alexander, AK

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