Earthquake Information for Petersburg Census Area, Alaska

Petersburg Census Area, AK has a moderate earthquake risk, with a total of 137 earthquakes since 1931. The USGS database shows that there is a 6.21% chance of a major earthquake within 50km of Petersburg Census Area, AK within the next 50 years. The largest earthquake within 30 miles of Petersburg Census Area, AK was a 3.0 Magnitude in 2010.

Risk Level:
Moderate

Total Number of Earthquakes in Petersburg Census Area since 1931

137

Probability of A 5.0 Earthquake within next 50 years

6.21%

Most Recent
Largest

3/27/2024 - 3.1 mag, 1.4mi depth 26 mi from Port Alexander, AK
1/17/2024 - 3.9 mag, 10.6mi depth 36 mi from Port Alexander, AK
1/12/2024 - 2.6 mag, 10.0mi depth 41 mi from Port Alexander, AK
10/25/2023 - 2.6 mag, 0.1mi depth 63 mi from Port Alexander, AK
4/4/2023 - 3.1 mag, 12.5mi depth 19 mi from Petersburg, AK
2/16/2021 - 2.3 mag, 5.2mi depth 20 mi from Port Alexander, AK
9/10/2020 - 2.1 mag, 0.3mi depth 18 mi from Petersburg, AK
4/26/2020 - 2.4 mag, 0.0mi depth 46 mi from Petersburg, AK
3/22/2020 - 3.1 mag, 3.8mi depth 68 mi from Petersburg, AK
10/26/2019 - 2.3 mag, 10.9mi depth 49 mi from Petersburg, AK
9/28/2019 - 2.1 mag, 4.2mi depth 46 mi from Petersburg, AK
9/16/2019 - 2.3 mag, 0.0mi depth 52 mi from Petersburg, AK
9/15/2019 - 3.0 mag, 16.0mi depth 41 mi from Petersburg, AK
9/14/2019 - 2.3 mag, 10.5mi depth 46 mi from Petersburg, AK
9/7/2019 - 1.9 mag, 34.9mi depth 46 mi from Petersburg, AK
9/7/2019 - 1.7 mag, 0.0mi depth 32 mi from Petersburg, AK
7/23/2019 - 2.5 mag, 0.0mi depth 45 mi from Petersburg, AK
5/19/2019 - 2.0 mag, 0.0mi depth 49 mi from Petersburg, AK
5/18/2019 - 1.9 mag, 14.3mi depth 42 mi from Petersburg, AK
10/13/2018 - 2.1 mag, 19.0mi depth 39 mi from Petersburg, AK
10/10/2018 - 2.5 mag, 11.4mi depth 38 mi from Petersburg, AK
9/11/2018 - 1.7 mag, 0.0mi depth 24 mi from Petersburg, AK
7/31/2018 - 2.2 mag, 23.6mi depth 36 mi from Petersburg, AK
7/26/2018 - 2.3 mag, 2.4mi depth 50 mi from Petersburg, AK
7/5/2018 - 2.2 mag, 25.4mi depth 37 mi from Petersburg, AK
7/2/2018 - 2.2 mag, 3.3mi depth 47 mi from Petersburg, AK
8/2/2017 - 1.9 mag, 26.1mi depth 42 mi from Petersburg, AK
7/31/2017 - 2.1 mag, 3.6mi depth 48 mi from Petersburg, AK
9/30/2016 - 2.4 mag, 0.0mi depth 46 mi from Petersburg, AK
9/27/2016 - 1.9 mag, 0.0mi depth 45 mi from Petersburg, AK
9/25/2016 - 2.0 mag, 0.0mi depth 48 mi from Petersburg, AK
4/30/2014 - 3.6 mag, 25.0mi depth 132 mi from Port Alexander, AK
4/13/2014 - 2.7 mag, 28.0mi depth 40 mi from Port Alexander, AK
4/2/2014 - 2.8 mag, 10.0mi depth 60 mi from Port Alexander, AK
3/2/2014 - 3.3 mag, 1.0mi depth 83 mi from Petersburg, AK
11/6/2013 - 3.3 mag, 10.5mi depth 38 mi from Port Alexander, AK
10/2/2013 - 3.2 mag, 12.2mi depth 35 mi from Port Alexander, AK
9/30/2013 - 3.1 mag, 10.0mi depth 61 mi from Port Alexander, AK
9/30/2013 - 3.3 mag, 5.0mi depth 56 mi from Port Alexander, AK
9/27/2013 - 3.3 mag, 23.5mi depth 42 mi from Port Alexander, AK
9/26/2013 - 4.4 mag, 2.7mi depth 44 mi from Port Alexander, AK
7/28/2013 - 2.3 mag, 22.3mi depth 31 mi from Port Alexander, AK
7/27/2013 - 2.1 mag, 20.0mi depth 61 mi from Port Alexander, AK
7/18/2013 - 2.2 mag, 18.3mi depth 54 mi from Port Alexander, AK
7/7/2013 - 2.5 mag, 27.8mi depth 55 mi from Port Alexander, AK
7/2/2013 - 2.5 mag, 24.3mi depth 62 mi from Port Alexander, AK
6/25/2013 - 2.9 mag, 19.1mi depth 51 mi from Port Alexander, AK
6/23/2013 - 2.5 mag, 22.8mi depth 48 mi from Port Alexander, AK
6/20/2013 - 2.7 mag, 11.6mi depth 57 mi from Port Alexander, AK
6/12/2013 - 3.0 mag, 19.2mi depth 53 mi from Port Alexander, AK
5/27/2013 - 4.4 mag, 16.1mi depth 51 mi from Port Alexander, AK
5/23/2013 - 2.3 mag, 20.0mi depth 47 mi from Port Alexander, AK
5/22/2013 - 2.2 mag, 28.4mi depth 47 mi from Port Alexander, AK
5/16/2013 - 2.3 mag, 20.0mi depth 45 mi from Port Alexander, AK
5/12/2013 - 3.0 mag, 20.0mi depth 49 mi from Port Alexander, AK
5/8/2013 - 1.7 mag, 21.4mi depth 27 mi from Port Alexander, AK
5/4/2013 - 2.4 mag, 23.1mi depth 28 mi from Port Alexander, AK
4/30/2013 - 2.3 mag, 21.1mi depth 36 mi from Port Alexander, AK
4/28/2013 - 2.1 mag, 20.0mi depth 50 mi from Port Alexander, AK
4/24/2013 - 2.2 mag, 20.0mi depth 46 mi from Port Alexander, AK
4/18/2013 - 2.5 mag, 20.0mi depth 55 mi from Port Alexander, AK
4/15/2013 - 3.2 mag, 10.0mi depth 57 mi from Port Alexander, AK
3/28/2013 - 3.5 mag, 20.0mi depth 60 mi from Port Alexander, AK
3/22/2013 - 3.0 mag, 24.9mi depth 54 mi from Port Alexander, AK
3/20/2013 - 2.1 mag, 20.6mi depth 42 mi from Port Alexander, AK
3/17/2013 - 1.8 mag, 20.0mi depth 32 mi from Port Alexander, AK
3/13/2013 - 3.5 mag, 14.8mi depth 56 mi from Port Alexander, AK
3/13/2013 - 2.2 mag, 16.5mi depth 43 mi from Port Alexander, AK
3/9/2013 - 2.1 mag, 20.0mi depth 52 mi from Port Alexander, AK
3/9/2013 - 2.2 mag, 20.0mi depth 55 mi from Port Alexander, AK
3/9/2013 - 2.4 mag, 20.0mi depth 54 mi from Port Alexander, AK
3/9/2013 - 3.1 mag, 20.0mi depth 51 mi from Port Alexander, AK
3/9/2013 - 2.2 mag, 20.0mi depth 44 mi from Port Alexander, AK
2/24/2013 - 3.5 mag, 15.8mi depth 53 mi from Port Alexander, AK
2/22/2013 - 2.6 mag, 20.8mi depth 53 mi from Port Alexander, AK
2/20/2013 - 3.0 mag, 20.0mi depth 55 mi from Port Alexander, AK
2/12/2013 - 2.5 mag, 20.0mi depth 47 mi from Port Alexander, AK
2/12/2013 - 2.2 mag, 20.0mi depth 46 mi from Port Alexander, AK
2/9/2013 - 2.4 mag, 10.0mi depth 44 mi from Port Alexander, AK
2/9/2013 - 2.2 mag, 10.0mi depth 42 mi from Port Alexander, AK
2/9/2013 - 2.1 mag, 10.0mi depth 39 mi from Port Alexander, AK
2/9/2013 - 3.5 mag, 24.5mi depth 30 mi from Port Alexander, AK
2/8/2013 - 2.6 mag, 20.0mi depth 46 mi from Port Alexander, AK
2/8/2013 - 2.0 mag, 35.5mi depth 44 mi from Port Alexander, AK
2/7/2013 - 2.2 mag, 18.5mi depth 53 mi from Port Alexander, AK
2/7/2013 - 3.4 mag, 20.2mi depth 31 mi from Port Alexander, AK
2/7/2013 - 2.3 mag, 10.0mi depth 60 mi from Port Alexander, AK
2/7/2013 - 2.5 mag, 10.0mi depth 52 mi from Port Alexander, AK
2/7/2013 - 3.1 mag, 10.0mi depth 58 mi from Port Alexander, AK
2/7/2013 - 2.3 mag, 10.0mi depth 57 mi from Port Alexander, AK
2/7/2013 - 2.5 mag, 13.9mi depth 56 mi from Port Alexander, AK
2/6/2013 - 2.6 mag, 10.0mi depth 52 mi from Port Alexander, AK
2/6/2013 - 1.8 mag, 12.7mi depth 49 mi from Port Alexander, AK
2/6/2013 - 1.8 mag, 15.5mi depth 50 mi from Port Alexander, AK
2/6/2013 - 3.1 mag, 10.0mi depth 52 mi from Port Alexander, AK
2/6/2013 - 2.6 mag, 10.0mi depth 56 mi from Port Alexander, AK
2/5/2013 - 2.9 mag, 20.0mi depth 55 mi from Port Alexander, AK
2/3/2013 - 2.4 mag, 10.0mi depth 54 mi from Port Alexander, AK
2/3/2013 - 2.3 mag, 10.0mi depth 57 mi from Port Alexander, AK
2/3/2013 - 2.3 mag, 10.0mi depth 57 mi from Port Alexander, AK

1/31/2013 - 5.9 mag, 9.7mi depth 45 mi from Port Alexander, AK
8/4/1972 - 5.8 mag, 19.3mi depth 33 mi from Port Alexander, AK
5/14/2001 - 5.2 mag, 10.0mi depth 337 mi from Port Alexander, AK
7/11/1979 - 5.1 mag, 10.0mi depth 64 mi from Port Alexander, AK
5/2/1984 - 4.9 mag, 10.0mi depth 47 mi from Port Alexander, AK
1/5/2013 - 4.8 mag, 7.0mi depth 45 mi from Port Alexander, AK
1/8/2013 - 4.7 mag, 9.1mi depth 60 mi from Port Alexander, AK
1/5/2013 - 4.7 mag, 9.9mi depth 53 mi from Port Alexander, AK
12/16/1998 - 4.6 mag, 10.0mi depth 68 mi from Port Alexander, AK
1/6/2013 - 4.5 mag, 10.0mi depth 36 mi from Port Alexander, AK
7/9/2001 - 4.5 mag, 15.0mi depth 15 mi from Port Alexander, AK
2/8/2004 - 4.5 mag, 20.0mi depth 62 mi from Port Alexander, AK
9/26/2013 - 4.4 mag, 2.7mi depth 44 mi from Port Alexander, AK
5/27/2013 - 4.4 mag, 16.1mi depth 51 mi from Port Alexander, AK
11/12/1995 - 4.4 mag, 10.0mi depth 46 mi from Port Alexander, AK
1/9/2013 - 4.4 mag, 10.0mi depth 63 mi from Port Alexander, AK
11/4/1978 - 4.4 mag, 10.0mi depth 258 mi from Port Alexander, AK
10/10/1979 - 4.4 mag, 33.0mi depth 42 mi from Port Alexander, AK
1/8/2013 - 4.3 mag, 10.0mi depth 28 mi from Port Alexander, AK
1/5/2013 - 4.2 mag, 16.2mi depth 41 mi from Port Alexander, AK
1/6/2013 - 4.2 mag, 20.0mi depth 60 mi from Port Alexander, AK
1/9/2013 - 4.2 mag, 3.1mi depth 53 mi from Port Alexander, AK
1/5/2013 - 4.2 mag, 10.4mi depth 61 mi from Port Alexander, AK
10/23/1995 - 4.2 mag, 0.0mi depth 55 mi from Port Alexander, AK
10/24/1995 - 4.1 mag, 0.0mi depth 59 mi from Port Alexander, AK
3/28/1990 - 4.1 mag, 10.0mi depth 62 mi from Port Alexander, AK
10/23/1995 - 4.1 mag, 0.0mi depth 54 mi from Port Alexander, AK
1/5/2013 - 4.0 mag, 20.0mi depth 55 mi from Port Alexander, AK
1/5/2013 - 4.0 mag, 13.4mi depth 47 mi from Port Alexander, AK
1/5/2013 - 4.0 mag, 20.0mi depth 54 mi from Port Alexander, AK
9/20/1990 - 3.9 mag, 10.0mi depth 43 mi from Port Alexander, AK
1/5/2013 - 3.9 mag, 5.2mi depth 49 mi from Port Alexander, AK
7/9/1991 - 3.9 mag, 10.0mi depth 235 mi from Port Alexander, AK
5/4/1993 - 3.9 mag, 10.0mi depth 38 mi from Port Alexander, AK
10/23/1995 - 3.9 mag, 0.0mi depth 56 mi from Port Alexander, AK
1/12/1973 - 3.9 mag, 33.0mi depth 43 mi from Port Alexander, AK
10/23/1995 - 3.9 mag, 0.0mi depth 55 mi from Port Alexander, AK
1/17/2024 - 3.9 mag, 10.6mi depth 36 mi from Port Alexander, AK
9/20/2010 - 3.8 mag, 16.6mi depth 29 mi from Kake, AK
1/5/2013 - 3.8 mag, 4.4mi depth 20 mi from Port Alexander, AK
1/5/2013 - 3.8 mag, 20.6mi depth 36 mi from Port Alexander, AK
11/18/1995 - 3.8 mag, 10.0mi depth 60 mi from Port Alexander, AK
1/5/2013 - 3.7 mag, 18.8mi depth 50 mi from Port Alexander, AK
9/13/1998 - 3.7 mag, 10.0mi depth 56 mi from Port Alexander, AK
1/5/2013 - 3.7 mag, 10.0mi depth 60 mi from Port Alexander, AK
10/23/1995 - 3.7 mag, 5.0mi depth 58 mi from Port Alexander, AK
9/24/2009 - 3.6 mag, 24.2mi depth 46 mi from Port Alexander, AK
4/30/2014 - 3.6 mag, 25.0mi depth 132 mi from Port Alexander, AK
2/24/2013 - 3.5 mag, 15.8mi depth 53 mi from Port Alexander, AK
3/28/2013 - 3.5 mag, 20.0mi depth 60 mi from Port Alexander, AK
2/6/2011 - 3.5 mag, 10.0mi depth 42 mi from Port Alexander, AK
2/9/2013 - 3.5 mag, 24.5mi depth 30 mi from Port Alexander, AK
3/13/2013 - 3.5 mag, 14.8mi depth 56 mi from Port Alexander, AK
1/6/2012 - 3.5 mag, 1.0mi depth 46 mi from Petersburg, AK
1/5/2013 - 3.5 mag, 20.0mi depth 50 mi from Port Alexander, AK
1/5/2013 - 3.5 mag, 20.0mi depth 50 mi from Port Alexander, AK
1/19/2013 - 3.5 mag, 20.0mi depth 58 mi from Port Alexander, AK
10/23/1995 - 3.5 mag, 5.0mi depth 49 mi from Port Alexander, AK
6/27/2004 - 3.5 mag, 12.0mi depth 233 mi from Port Alexander, AK
1/5/2013 - 3.4 mag, 22.8mi depth 58 mi from Port Alexander, AK
11/30/2008 - 3.4 mag, 10.0mi depth 53 mi from Port Alexander, AK
1/15/2009 - 3.4 mag, 19.9mi depth 38 mi from Port Alexander, AK
11/14/2009 - 3.4 mag, 10.0mi depth 60 mi from Port Alexander, AK
1/5/2013 - 3.4 mag, 10.0mi depth 52 mi from Port Alexander, AK
1/5/2013 - 3.4 mag, 3.1mi depth 64 mi from Port Alexander, AK
2/7/2013 - 3.4 mag, 20.2mi depth 31 mi from Port Alexander, AK
9/27/2013 - 3.3 mag, 23.5mi depth 42 mi from Port Alexander, AK
9/30/2013 - 3.3 mag, 5.0mi depth 56 mi from Port Alexander, AK
11/6/2013 - 3.3 mag, 10.5mi depth 38 mi from Port Alexander, AK
3/2/2014 - 3.3 mag, 1.0mi depth 83 mi from Petersburg, AK
4/15/2013 - 3.2 mag, 10.0mi depth 57 mi from Port Alexander, AK
10/2/2013 - 3.2 mag, 12.2mi depth 35 mi from Port Alexander, AK
1/5/2013 - 3.2 mag, 10.0mi depth 39 mi from Port Alexander, AK
1/14/2013 - 3.2 mag, 20.0mi depth 46 mi from Port Alexander, AK
3/22/2020 - 3.1 mag, 3.8mi depth 68 mi from Petersburg, AK
11/1/1995 - 3.1 mag, 10.0mi depth 51 mi from Port Alexander, AK
1/17/2008 - 3.1 mag, 25.0mi depth 76 mi from Port Alexander, AK
3/9/2013 - 3.1 mag, 20.0mi depth 51 mi from Port Alexander, AK
1/8/2009 - 3.1 mag, 18.7mi depth 21 mi from Port Alexander, AK
9/30/2013 - 3.1 mag, 10.0mi depth 61 mi from Port Alexander, AK
1/6/2013 - 3.1 mag, 19.0mi depth 48 mi from Port Alexander, AK
4/4/2023 - 3.1 mag, 12.5mi depth 19 mi from Petersburg, AK
2/7/2013 - 3.1 mag, 10.0mi depth 58 mi from Port Alexander, AK
1/5/2013 - 3.1 mag, 12.8mi depth 54 mi from Port Alexander, AK
3/27/2024 - 3.1 mag, 1.4mi depth 26 mi from Port Alexander, AK
8/24/2010 - 3.1 mag, 0.5mi depth 48 mi from Port Alexander, AK
1/19/2013 - 3.1 mag, 20.0mi depth 33 mi from Port Alexander, AK
2/6/2013 - 3.1 mag, 10.0mi depth 52 mi from Port Alexander, AK
1/5/2013 - 3.0 mag, 3.3mi depth 54 mi from Port Alexander, AK
6/12/2013 - 3.0 mag, 19.2mi depth 53 mi from Port Alexander, AK
1/8/2013 - 3.0 mag, 20.0mi depth 39 mi from Port Alexander, AK
1/31/2013 - 3.0 mag, 20.0mi depth 59 mi from Port Alexander, AK
3/25/2011 - 3.0 mag, 14.6mi depth 68 mi from Port Alexander, AK
5/13/2011 - 3.0 mag, 10.0mi depth 67 mi from Port Alexander, AK
9/15/2019 - 3.0 mag, 16.0mi depth 41 mi from Petersburg, AK
5/12/2013 - 3.0 mag, 20.0mi depth 49 mi from Port Alexander, AK
2/20/2013 - 3.0 mag, 20.0mi depth 55 mi from Port Alexander, AK
3/22/2013 - 3.0 mag, 24.9mi depth 54 mi from Port Alexander, AK
1/5/2013 - 2.9 mag, 20.0mi depth 36 mi from Port Alexander, AK
1/5/2013 - 2.9 mag, 10.0mi depth 32 mi from Port Alexander, AK

View All

Earthquake Probability for Petersburg Census Area, AK

View the probability of a major earthquake within the next 50 years in Petersburg Census Area, 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

6.21%

5.1

5.22%

5.2

5.22%

5.2

4.39%

5.3

3.69%

5.4

3.11%

5.5

2.63%

5.6

2.23%

5.7

1.90%

5.8

1.62%

5.9

1.39%

6.0

1.20%

6.1

1.00%

6.2

0.84%

6.3

0.70%

6.4

0.58%

6.5

0.48%

6.6

0.39%

6.7

0.31%

6.8

0.25%

6.9

0.18%

7.0

0.13%

7.1

0.08%

7.2

0.04%

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 Petersburg Census Area, AK

View the number of earthquake incidents in Petersburg Census Area, AK by year that are more than 2.5 Magnitude.

List of Earthquake Incidents for Petersburg Census Area, AK

Total Number of Earthquakes in Petersburg Census Area, AK within 30 miles. All distances and depths in the table are measured in miles.

Date

Magnitude

Depth

03/27/2024

3.1

1.4

Earthquake Information for Petersburg Census Area, Alaska

Earthquake Probability for Petersburg Census Area, AK

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

Earthquake Count for Petersburg Census Area, AK

List of Earthquake Incidents for Petersburg Census Area, AK

Risk Of Natural Disasters In Petersburg Census Area, AK

Related Pages

Alaska Earthquakes by City