Earthquake Information for Port Alsworth, Alaska

Port Alsworth, AK has a very high earthquake risk, with a total of 522 earthquakes since 1931. The USGS database shows that there is a 83.46% chance of a major earthquake within 50km of Port Alsworth, AK within the next 50 years. The largest earthquake within 30 miles of Port Alsworth, AK was a 5.6 Magnitude in 1964.

Risk Level:
Very High

Total Number of Earthquakes in Port Alsworth since 1931 within 30 miles

522

Probability of A 5.0 Earthquake within next 50 years

83.46%

Most Recent
Largest

4/22/2024 - 1.4 mag, 130.0mi depth 25.3345 mi from Port Alsworth, AK
4/5/2024 - 2.0 mag, 30.0mi depth 14.1781 mi from Port Alsworth, AK
3/21/2024 - 1.3 mag, 148.1mi depth 29.1244 mi from Port Alsworth, AK
3/18/2024 - 1.9 mag, 161.1mi depth 26.5727 mi from Port Alsworth, AK
3/7/2024 - 2.1 mag, 158.3mi depth 28.5608 mi from Port Alsworth, AK
2/28/2024 - 2.2 mag, 214.6mi depth 14.9317 mi from Pedro Bay, AK
2/26/2024 - 2.3 mag, 187.5mi depth 17.9874 mi from Port Alsworth, AK
2/25/2024 - 2.6 mag, 206.0mi depth 12.8606 mi from Port Alsworth, AK
2/16/2024 - 2.5 mag, 186.9mi depth 16.259 mi from Pedro Bay, AK
2/10/2024 - 1.9 mag, 165.2mi depth 26.4668 mi from Port Alsworth, AK
2/4/2024 - 2.3 mag, 164.2mi depth 22.4442 mi from Pedro Bay, AK
12/21/2023 - 2.5 mag, 186.8mi depth 24.6464 mi from Port Alsworth, AK
12/21/2023 - 2.2 mag, 179.0mi depth 27.2074 mi from Port Alsworth, AK
12/16/2023 - 4.3 mag, 196.4mi depth 27.8106 mi from Port Alsworth, AK
12/13/2023 - 1.5 mag, 141.7mi depth 27.8717 mi from Port Alsworth, AK
11/6/2023 - 1.1 mag, 42.5mi depth 22.2009 mi from Port Alsworth, AK
10/27/2023 - 1.8 mag, 132.9mi depth 23.2629 mi from Pedro Bay, AK
10/23/2023 - 1.3 mag, 5.1mi depth 14.9841 mi from Port Alsworth, AK
9/11/2023 - 1.5 mag, 182.5mi depth 29.8131 mi from Port Alsworth, AK
8/2/2023 - 1.8 mag, 166.3mi depth 26.8426 mi from Port Alsworth, AK
7/21/2023 - 1.7 mag, 186.3mi depth 6.16733 mi from Pedro Bay, AK
7/5/2023 - 2.3 mag, 186.8mi depth 11.8058 mi from Pedro Bay, AK
6/27/2023 - 2.5 mag, 188.7mi depth 29.5102 mi from Port Alsworth, AK
6/21/2023 - 2.0 mag, 181.0mi depth 7.89601 mi from Pedro Bay, AK
6/11/2023 - 2.0 mag, 167.8mi depth 26.157 mi from Pedro Bay, AK
6/7/2023 - 2.7 mag, 164.9mi depth 22.0104 mi from Pedro Bay, AK
5/25/2023 - 1.3 mag, 43.4mi depth 15.5372 mi from Pedro Bay, AK
5/19/2023 - 1.3 mag, 183.8mi depth 6.7122 mi from Pedro Bay, AK
5/13/2023 - 1.6 mag, 39.7mi depth 4.0133 mi from Port Alsworth, AK
5/11/2023 - 1.7 mag, 213.1mi depth 9.62043 mi from Port Alsworth, AK
4/7/2023 - 1.5 mag, 11.4mi depth 27.2178 mi from Port Alsworth, AK
3/29/2023 - 1.8 mag, 184.5mi depth 26.2901 mi from Port Alsworth, AK
3/20/2023 - 2.7 mag, 160.4mi depth 26.1323 mi from Port Alsworth, AK
3/20/2023 - 1.9 mag, 164.5mi depth 22.1234 mi from Pedro Bay, AK
2/11/2023 - 2.4 mag, 119.9mi depth 22.5419 mi from Pedro Bay, AK
2/9/2023 - 1.6 mag, 192.5mi depth 17.3786 mi from Pedro Bay, AK
2/8/2023 - 2.3 mag, 149.3mi depth 24.3009 mi from Port Alsworth, AK
2/6/2023 - 2.6 mag, 150.1mi depth 28.7928 mi from Port Alsworth, AK
2/6/2023 - 2.1 mag, 197.3mi depth 15.6307 mi from Pedro Bay, AK
2/5/2023 - 2.7 mag, 180.6mi depth 4.78209 mi from Pedro Bay, AK
2/3/2023 - 2.1 mag, 121.6mi depth 11.4327 mi from Port Alsworth, AK
1/11/2023 - 2.1 mag, 147.0mi depth 20.809 mi from Pedro Bay, AK
1/10/2023 - 2.5 mag, 177.7mi depth 29.6548 mi from Port Alsworth, AK
1/8/2023 - 2.1 mag, 138.9mi depth 23.1781 mi from Pedro Bay, AK
12/30/2022 - 2.0 mag, 168.5mi depth 24.8274 mi from Port Alsworth, AK
11/5/2022 - 2.8 mag, 167.4mi depth 25.6794 mi from Port Alsworth, AK
10/25/2022 - 2.3 mag, 22.6mi depth 16.4857 mi from Port Alsworth, AK
10/23/2022 - 1.7 mag, 4.4mi depth 23.9734 mi from Port Alsworth, AK
10/13/2022 - 2.0 mag, 0.0mi depth 9.89609 mi from Pedro Bay, AK
10/1/2022 - 1.1 mag, 18.5mi depth 24.6046 mi from Port Alsworth, AK

4/10/1964 - 5.6 mag, 74.3mi depth 28.3188 mi from Pedro Bay, AK
7/25/1987 - 5.6 mag, 166.6mi depth 19.5871 mi from Port Alsworth, AK
3/20/1989 - 5.4 mag, 126.5mi depth 16.0355 mi from Pedro Bay, AK
12/27/1977 - 5.1 mag, 175.0mi depth 27.2261 mi from Port Alsworth, AK
11/6/1976 - 4.9 mag, 119.0mi depth 27.594 mi from Pedro Bay, AK
2/13/1978 - 4.9 mag, 131.0mi depth 13.4081 mi from Pedro Bay, AK
3/20/1978 - 4.9 mag, 153.0mi depth 25.2357 mi from Port Alsworth, AK
6/16/1977 - 4.7 mag, 176.0mi depth 24.2934 mi from Pedro Bay, AK
5/29/1988 - 4.6 mag, 194.2mi depth 27.2776 mi from Port Alsworth, AK
4/19/1978 - 4.6 mag, 158.0mi depth 27.5826 mi from Port Alsworth, AK
9/25/1985 - 4.6 mag, 189.3mi depth 9.6057 mi from Iliamna, AK
4/23/1983 - 4.6 mag, 183.0mi depth 26.9834 mi from Port Alsworth, AK
6/25/2006 - 4.6 mag, 165.0mi depth 21.127 mi from Pedro Bay, AK
12/10/1994 - 4.6 mag, 218.9mi depth 14.6909 mi from Port Alsworth, AK
5/8/1989 - 4.6 mag, 158.0mi depth 29.7995 mi from Port Alsworth, AK
4/4/1979 - 4.5 mag, 174.0mi depth 27.9201 mi from Port Alsworth, AK
12/18/2021 - 4.5 mag, 165.7mi depth 11.7773 mi from Pedro Bay, AK
6/17/2002 - 4.5 mag, 172.7mi depth 20.7438 mi from Pedro Bay, AK
5/26/1973 - 4.4 mag, 171.0mi depth 13.2598 mi from Port Alsworth, AK
11/3/1996 - 4.4 mag, 150.8mi depth 24.9585 mi from Pedro Bay, AK
11/6/1974 - 4.4 mag, 194.0mi depth 16.8977 mi from Port Alsworth, AK
3/12/2009 - 4.4 mag, 191.7mi depth 28.5177 mi from Port Alsworth, AK
12/16/2023 - 4.3 mag, 196.4mi depth 27.8106 mi from Port Alsworth, AK
11/17/2013 - 4.3 mag, 203.7mi depth 17.0691 mi from Port Alsworth, AK
1/17/2004 - 4.3 mag, 187.5mi depth 27.2682 mi from Port Alsworth, AK
10/9/2003 - 4.3 mag, 195.9mi depth 24.1754 mi from Port Alsworth, AK
11/22/2013 - 4.3 mag, 167.5mi depth 22.2476 mi from Pedro Bay, AK
10/25/1976 - 4.2 mag, 163.0mi depth 2.7933 mi from Pedro Bay, AK
1/26/1991 - 4.1 mag, 161.9mi depth 27.1797 mi from Port Alsworth, AK
7/18/1996 - 4.1 mag, 149.6mi depth 25.1647 mi from Port Alsworth, AK
4/12/2007 - 4.1 mag, 202.8mi depth 23.7292 mi from Port Alsworth, AK
5/15/2017 - 4.0 mag, 188.3mi depth 30.3933 mi from Iliamna, AK
7/30/1988 - 4.0 mag, 160.2mi depth 24.9976 mi from Pedro Bay, AK
8/27/2019 - 3.9 mag, 130.8mi depth 37.9116 mi from Iliamna, AK
1/6/1991 - 3.8 mag, 147.5mi depth 11.4568 mi from Pedro Bay, AK
8/12/1995 - 3.8 mag, 148.9mi depth 29.5919 mi from Port Alsworth, AK
5/21/1979 - 3.8 mag, 170.0mi depth 15.1876 mi from Port Alsworth, AK
8/5/2021 - 3.8 mag, 186.7mi depth 26.7883 mi from Port Alsworth, AK
2/7/1995 - 3.7 mag, 189.9mi depth 19.5057 mi from Port Alsworth, AK
7/1/2011 - 3.6 mag, 184.9mi depth 25.7029 mi from Port Alsworth, AK
4/30/1992 - 3.6 mag, 179.5mi depth 25.1902 mi from Port Alsworth, AK
7/7/1996 - 3.6 mag, 138.0mi depth 25.1971 mi from Pedro Bay, AK
10/9/1998 - 3.6 mag, 140.2mi depth 20.7965 mi from Pedro Bay, AK
7/7/2018 - 3.6 mag, 118.9mi depth 38.9544 mi from Iliamna, AK
7/22/1990 - 3.6 mag, 162.4mi depth 13.1878 mi from Pedro Bay, AK
6/9/2000 - 3.5 mag, 192.0mi depth 11.6233 mi from Pedro Bay, AK
3/27/2007 - 3.5 mag, 169.6mi depth 25.7751 mi from Pedro Bay, AK
11/9/2019 - 3.4 mag, 199.3mi depth 41.9153 mi from Iliamna, AK
2/10/1975 - 3.4 mag, 147.0mi depth 29.7188 mi from Port Alsworth, AK
8/10/1978 - 3.4 mag, 33.0mi depth 24.415 mi from Port Alsworth, AK

View All

Earthquake Probability for Port Alsworth, AK

View the probability of a major earthquake within the next 50 years in Port Alsworth, 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

83.46%

5.1

76.48%

5.2

76.48%

5.2

68.88%

5.3

61.11%

5.4

53.55%

5.5

46.49%

5.6

40.10%

5.7

34.47%

5.8

29.61%

5.9

25.48%

6.0

22.01%

6.1

18.38%

6.2

15.36%

6.3

12.69%

6.4

10.49%

6.5

8.63%

6.6

7.09%

6.7

5.75%

6.8

4.57%

6.9

3.58%

7.0

2.72%

7.1

1.98%

7.2

1.31%

7.3

0.76%

7.4

0.35%

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 Alsworth, AK

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

List of Earthquake Incidents for Port Alsworth, AK

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

04/22/2024

1.4

130.0

25.33

Earthquake Information for Port Alsworth, Alaska

Earthquake Probability for Port Alsworth, AK

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

Earthquake Count for Port Alsworth, AK

List of Earthquake Incidents for Port Alsworth, AK

Risk Of Natural Disasters In Port Alsworth, AK

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