Earthquake Information for Portia, Arkansas

Portia, AR has a moderate earthquake risk, with a total of 65 earthquakes since 1931. The USGS database shows that there is a 5.47% chance of a major earthquake within 50km of Portia, AR within the next 50 years. The largest earthquake within 30 miles of Portia, AR was a 3.9 Magnitude in 2000.

Risk Level:
Moderate

Total Number of Earthquakes in Portia since 1931 within 30 miles

Probability of A 5.0 Earthquake within next 50 years

5.47%

Most Recent
Largest

10/1/2023 - 1.7 mag, 10.9mi depth 2.36432 mi from Black Rock, AR
7/23/2023 - 2.5 mag, 15.7mi depth 1.29365 mi from Strawberry, AR
7/16/2023 - 1.6 mag, 18.6mi depth 2.16876 mi from Lynn, AR
7/15/2023 - 1.9 mag, 15.6mi depth 5.91641 mi from Ravenden, AR
9/27/2022 - 2.4 mag, 15.1mi depth 1.80515 mi from Maynard, AR
9/7/2022 - 2.1 mag, 15.1mi depth 1.58174 mi from Lynn, AR
8/21/2022 - 3.1 mag, 14.8mi depth 2.86036 mi from Imboden, AR
8/21/2022 - 1.7 mag, 9.8mi depth 2.38546 mi from Imboden, AR
6/26/2022 - 1.7 mag, 15.0mi depth 1.15021 mi from Imboden, AR
6/6/2022 - 2.0 mag, 17.1mi depth 5.58558 mi from Ravenden, AR
6/6/2022 - 2.4 mag, 16.0mi depth 5.12995 mi from Ravenden, AR
6/6/2022 - 2.2 mag, 14.0mi depth 5.5718 mi from Williford, AR
6/6/2022 - 1.7 mag, 10.5mi depth 3.52636 mi from Ravenden, AR
6/6/2022 - 2.0 mag, 10.4mi depth 4.90445 mi from Williford, AR
12/15/2021 - 2.2 mag, 0.0mi depth 3.83229 mi from Powhatan, AR
4/28/2021 - 1.6 mag, 5.8mi depth 3.65207 mi from Black Rock, AR
3/18/2021 - 2.4 mag, 3.4mi depth 3.05318 mi from Powhatan, AR
10/11/2020 - 2.0 mag, 12.2mi depth 4.57724 mi from Maynard, AR
10/7/2020 - 2.6 mag, 9.1mi depth 3.24053 mi from Maynard, AR
5/27/2020 - 2.7 mag, 11.2mi depth 11.9829 mi from Pocahontas, AR
4/6/2020 - 2.6 mag, 15.9mi depth 7.7759 mi from Pocahontas, AR
4/6/2020 - 2.3 mag, 14.9mi depth 8.41777 mi from Pocahontas, AR
12/28/2018 - 2.2 mag, 2.2mi depth 16.879 mi from Pocahontas, AR
5/5/2018 - 2.8 mag, 18.5mi depth 14.8564 mi from Cave City, AR
2/5/2017 - 2.0 mag, 9.2mi depth 14.9653 mi from Cave City, AR
7/20/2016 - 2.2 mag, 17.5mi depth 14.8058 mi from Hoxie, AR
4/3/2015 - 2.1 mag, 1.9mi depth 12.2032 mi from Tuckerman, AR
2/4/2015 - 2.2 mag, 0.6mi depth 5.32984 mi from Bono, AR
4/29/2014 - 2.1 mag, 8.3mi depth 2.27 mi from Minturn, AR
4/6/2014 - 2.1 mag, 14.2mi depth 2.3509 mi from North Big Rock Township, AR
3/24/2014 - 2.1 mag, 6.6mi depth 10.9396 mi from Pocahontas, AR
2/26/2014 - 2.2 mag, 12.0mi depth 12.7267 mi from Hoxie, AR
2/5/2014 - 1.9 mag, 13.0mi depth 14.068 mi from Cave City, AR
2/2/2014 - 2.1 mag, 10.5mi depth 4.91607 mi from Hoxie, AR
1/15/2014 - 2.5 mag, 3.9mi depth 8.66124 mi from Hoxie, AR
12/3/2013 - 2.2 mag, 4.9mi depth 6.43206 mi from Hoxie, AR
11/17/2013 - 1.9 mag, 8.3mi depth 5.37909 mi from Hoxie, AR
11/3/2013 - 2.1 mag, 10.9mi depth 1.1067 mi from Reeds Creek Township, AR
7/27/2013 - 2.2 mag, 16.6mi depth 1.5872 mi from Strawberry, AR
5/21/2013 - 2.9 mag, 15.5mi depth 0.8647 mi from Reeds Creek Township, AR
5/21/2013 - 2.4 mag, 15.8mi depth 1.5504 mi from Reeds Creek Township, AR
5/21/2013 - 2.1 mag, 15.5mi depth 1.4503 mi from Reeds Creek Township, AR
5/21/2013 - 2.0 mag, 14.4mi depth 1.844 mi from Reeds Creek Township, AR
5/21/2013 - 1.7 mag, 16.0mi depth 1.8018 mi from Reeds Creek Township, AR
5/21/2013 - 1.8 mag, 15.6mi depth 1.8068 mi from Reeds Creek Township, AR
5/21/2013 - 1.9 mag, 14.8mi depth 1.3261 mi from Strawberry, AR
3/13/2013 - 2.0 mag, 7.6mi depth 2.2686 mi from Janes Creek Township, AR
3/5/2013 - 2.0 mag, 13.7mi depth 1.1184 mi from Butler Township, AR
12/8/2012 - 2.4 mag, 14.1mi depth 3.1619 mi from Morgan Township, AR
8/12/2012 - 2.4 mag, 5.0mi depth 1.9297 mi from Water Valley Township, AR

8/22/2000 - 3.9 mag, 8.3mi depth 2.5855 mi from Baker Township, AR
8/20/1994 - 3.5 mag, 5.0mi depth 3.1356 mi from Richwoods Township, AR
2/27/1979 - 3.4 mag, 9.0mi depth 2.7596 mi from Morgan Township, AR
1/20/2010 - 3.3 mag, 0.1mi depth 0.9902 mi from Jesup Township, AR
10/21/1999 - 3.3 mag, 19.3mi depth 2.537 mi from Warm Springs Township, AR
11/5/1979 - 3.2 mag, 8.0mi depth 1.5651 mi from Ingram Township, AR
10/21/1999 - 3.1 mag, 11.7mi depth 3.1703 mi from Warm Springs Township, AR
5/4/1985 - 3.1 mag, 6.0mi depth 3.472 mi from Clark Township, AR
8/21/2022 - 3.1 mag, 14.8mi depth 2.86036 mi from Imboden, AR
5/21/2013 - 2.9 mag, 15.5mi depth 0.8647 mi from Reeds Creek Township, AR
2/9/2004 - 2.9 mag, 12.8mi depth 0.9057 mi from Reyno, AR
1/26/2009 - 2.9 mag, 0.1mi depth 2.3808 mi from Walnut Ridge, AR
5/5/2018 - 2.8 mag, 18.5mi depth 14.8564 mi from Cave City, AR
9/23/1978 - 2.8 mag, 10.0mi depth 0.9322 mi from Water Valley Township, AR
5/27/2020 - 2.7 mag, 11.2mi depth 11.9829 mi from Pocahontas, AR
10/26/2009 - 2.7 mag, 16.2mi depth 1.5344 mi from Maynard, AR
10/25/2008 - 2.7 mag, 1.3mi depth 2.0958 mi from Lower North Township, AR
10/7/2020 - 2.6 mag, 9.1mi depth 3.24053 mi from Maynard, AR
4/6/2020 - 2.6 mag, 15.9mi depth 7.7759 mi from Pocahontas, AR
9/13/2004 - 2.5 mag, 1.3mi depth 0.983 mi from Maynard, AR
5/19/2005 - 2.5 mag, 11.2mi depth 2.2234 mi from Black River Township, AR
7/23/2023 - 2.5 mag, 15.7mi depth 1.29365 mi from Strawberry, AR
1/15/2014 - 2.5 mag, 3.9mi depth 8.66124 mi from Hoxie, AR
12/8/2012 - 2.4 mag, 14.1mi depth 3.1619 mi from Morgan Township, AR
6/6/2022 - 2.4 mag, 16.0mi depth 5.12995 mi from Ravenden, AR
3/18/2021 - 2.4 mag, 3.4mi depth 3.05318 mi from Powhatan, AR
8/12/2012 - 2.4 mag, 5.0mi depth 1.9297 mi from Water Valley Township, AR
9/27/2022 - 2.4 mag, 15.1mi depth 1.80515 mi from Maynard, AR
5/21/2013 - 2.4 mag, 15.8mi depth 1.5504 mi from Reeds Creek Township, AR
4/6/2020 - 2.3 mag, 14.9mi depth 8.41777 mi from Pocahontas, AR
6/6/2022 - 2.2 mag, 14.0mi depth 5.5718 mi from Williford, AR
12/15/2021 - 2.2 mag, 0.0mi depth 3.83229 mi from Powhatan, AR
7/20/2016 - 2.2 mag, 17.5mi depth 14.8058 mi from Hoxie, AR
12/3/2013 - 2.2 mag, 4.9mi depth 6.43206 mi from Hoxie, AR
12/28/2018 - 2.2 mag, 2.2mi depth 16.879 mi from Pocahontas, AR
2/26/2014 - 2.2 mag, 12.0mi depth 12.7267 mi from Hoxie, AR
7/27/2013 - 2.2 mag, 16.6mi depth 1.5872 mi from Strawberry, AR
2/4/2015 - 2.2 mag, 0.6mi depth 5.32984 mi from Bono, AR
5/21/2013 - 2.1 mag, 15.5mi depth 1.4503 mi from Reeds Creek Township, AR
4/29/2014 - 2.1 mag, 8.3mi depth 2.27 mi from Minturn, AR
2/2/2014 - 2.1 mag, 10.5mi depth 4.91607 mi from Hoxie, AR
4/3/2015 - 2.1 mag, 1.9mi depth 12.2032 mi from Tuckerman, AR
4/6/2014 - 2.1 mag, 14.2mi depth 2.3509 mi from North Big Rock Township, AR
3/24/2014 - 2.1 mag, 6.6mi depth 10.9396 mi from Pocahontas, AR
11/3/2013 - 2.1 mag, 10.9mi depth 1.1067 mi from Reeds Creek Township, AR
9/7/2022 - 2.1 mag, 15.1mi depth 1.58174 mi from Lynn, AR
6/6/2022 - 2.0 mag, 17.1mi depth 5.58558 mi from Ravenden, AR
5/21/2013 - 2.0 mag, 14.4mi depth 1.844 mi from Reeds Creek Township, AR
6/6/2022 - 2.0 mag, 10.4mi depth 4.90445 mi from Williford, AR
3/5/2013 - 2.0 mag, 13.7mi depth 1.1184 mi from Butler Township, AR

View All

Earthquake Probability for Portia, AR

View the probability of a major earthquake within the next 50 years in Portia, AR.

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

5.47%

5.1

4.43%

5.2

4.43%

5.2

4.43%

5.3

3.58%

5.4

2.90%

5.5

2.35%

5.6

2.17%

5.7

1.76%

5.8

1.54%

5.9

1.25%

6.0

1.16%

6.1

0.90%

6.2

0.77%

6.3

0.59%

6.4

0.53%

6.5

0.39%

6.6

0.32%

6.7

0.28%

6.8

0.18%

6.9

0.13%

7.0

0.11%

7.1

0.06%

7.2

0.04%

7.3

0.03%

7.4

0.01%

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 Portia, AR

View the number of earthquake incidents in Portia, AR by year that are more than 2.5 Magnitude.

List of Earthquake Incidents for Portia, AR

Total Number of Earthquakes in Portia, AR within 30 miles. All distances and depths in the table are measured in miles.

10/01/2023

1.7

10.9

2.36

Earthquake Information for Portia, Arkansas

Earthquake Probability for Portia, AR

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

Earthquake Count for Portia, AR

List of Earthquake Incidents for Portia, AR

Risk Of Natural Disasters In Portia, AR

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