Earthquake Information for Lemhi County, Idaho

Lemhi County, ID has a high earthquake risk, with a total of 78 earthquakes since 1931. The USGS database shows that there is a 70.02% chance of a major earthquake within 50km of Lemhi County, ID within the next 50 years. The largest earthquake within 30 miles of Lemhi County, ID was a 4.8 Magnitude in 1988.

Risk Level:
High

Total Number of Earthquakes in Lemhi County since 1931

Probability of A 5.0 Earthquake within next 50 years

70.02%

Most Recent
Largest

12/21/2023 - 2.9 mag, 16.3mi depth 15 mi from Salmon, ID
10/27/2023 - 1.5 mag, 6.5mi depth 19 mi from Salmon, ID
2/27/2023 - 3.0 mag, 13.3mi depth 16 mi from Leadore, ID
1/2/2022 - 2.5 mag, 5.0mi depth 24 mi from Leadore, ID
1/2/2022 - 2.6 mag, 5.0mi depth 24 mi from Leadore, ID
11/17/2021 - 2.7 mag, 10.0mi depth 26 mi from Leadore, ID
2/23/2019 - 3.3 mag, 10.0mi depth 30 mi from Salmon, ID
4/28/2014 - 1.2 mag, 0.5mi depth 16 mi from Leadore, ID
1/29/2014 - 1.8 mag, 6.9mi depth 16 mi from Salmon, ID
1/16/2014 - 1.3 mag, 12.0mi depth 6 mi from Salmon, ID
10/18/2013 - 2.0 mag, 24.5mi depth 17 mi from Tendoy, ID
10/9/2013 - 1.1 mag, 12.2mi depth 18 mi from Leadore, ID
9/7/2013 - 1.0 mag, 7.0mi depth 10 mi from Leadore, ID
8/3/2013 - 2.5 mag, 11.8mi depth 8 mi from May, ID
7/29/2013 - 2.2 mag, 11.6mi depth 9 mi from Tendoy, ID
6/23/2013 - 1.2 mag, 12.9mi depth 18 mi from Leadore, ID
6/19/2013 - 1.4 mag, 12.7mi depth 19 mi from Leadore, ID
6/12/2013 - 1.0 mag, 7.9mi depth 15 mi from Tendoy, ID
5/27/2013 - 1.3 mag, 0.7mi depth 13 mi from Leadore, ID
5/22/2013 - 1.0 mag, 5.6mi depth 20 mi from Leadore, ID
5/8/2013 - 1.3 mag, 6.9mi depth 8 mi from May, ID
4/26/2013 - 1.1 mag, 9.5mi depth 17 mi from Leadore, ID
4/22/2013 - 1.3 mag, 0.3mi depth 23 mi from Leadore, ID
4/9/2013 - 2.1 mag, 10.8mi depth 6 mi from May, ID
3/21/2013 - 1.6 mag, 7.2mi depth 14 mi from May, ID
3/21/2013 - 1.4 mag, 7.2mi depth 14 mi from May, ID
2/6/2013 - 2.1 mag, 28.0mi depth 0 mi from Carmen, ID
2/6/2013 - 2.2 mag, 29.4mi depth 1 mi from Carmen, ID
7/24/2012 - 2.7 mag, 6.6mi depth 17 mi from Leadore, ID
12/12/2011 - 2.6 mag, 13.6mi depth 3 mi from Salmon, ID
3/13/2007 - 2.6 mag, 13.7mi depth 5 mi from Leadore, ID
6/14/2006 - 3.0 mag, 9.4mi depth 19 mi from Leadore, ID
3/28/2006 - 2.5 mag, 11.0mi depth 24 mi from Salmon, ID
11/25/2005 - 3.5 mag, 5.0mi depth 23 mi from Salmon, ID
10/31/2005 - 4.5 mag, 5.0mi depth 13 mi from Tendoy, ID
9/3/2005 - 2.9 mag, 11.1mi depth 24 mi from Salmon, ID
9/3/2005 - 3.0 mag, 12.6mi depth 24 mi from Salmon, ID
2/5/2003 - 3.5 mag, 5.0mi depth 25 mi from Leadore, ID
12/13/2001 - 3.2 mag, 5.0mi depth 38 mi from Salmon, ID
12/8/2000 - 3.3 mag, 4.4mi depth 21 mi from Leadore, ID
12/5/2000 - 3.5 mag, 5.0mi depth 13 mi from Tendoy, ID
5/30/1999 - 3.1 mag, 10.0mi depth 21 mi from May, ID
3/21/1998 - 3.2 mag, 5.0mi depth 7 mi from May, ID
3/1/1998 - 3.1 mag, 5.0mi depth 6 mi from May, ID
1/13/1998 - 3.6 mag, 5.0mi depth 14 mi from Tendoy, ID
8/29/1997 - 3.7 mag, 9.9mi depth 12 mi from Leadore, ID
4/6/1997 - 3.1 mag, 5.0mi depth 16 mi from May, ID
1/17/1997 - 3.4 mag, 5.0mi depth 5 mi from May, ID
4/24/1996 - 3.6 mag, 5.0mi depth 15 mi from May, ID
6/7/1994 - 4.1 mag, 5.0mi depth 5 mi from May, ID
6/7/1994 - 3.8 mag, 5.0mi depth 8 mi from May, ID
6/7/1994 - 4.8 mag, 5.0mi depth 9 mi from May, ID
2/22/1993 - 3.4 mag, 5.0mi depth 6 mi from May, ID
9/30/1992 - 3.2 mag, 5.0mi depth 15 mi from May, ID
8/28/1992 - 3.4 mag, 5.0mi depth 7 mi from Leadore, ID
7/4/1992 - 3.8 mag, 10.0mi depth 4 mi from May, ID
5/19/1992 - 3.8 mag, 5.0mi depth 4 mi from May, ID
5/18/1992 - 3.0 mag, 5.0mi depth 3 mi from May, ID
5/18/1992 - 3.5 mag, 5.0mi depth 10 mi from May, ID
5/6/1992 - 4.4 mag, 5.0mi depth 10 mi from May, ID
5/5/1992 - 3.5 mag, 5.0mi depth 13 mi from May, ID
5/5/1992 - 3.2 mag, 5.0mi depth 14 mi from May, ID
5/5/1992 - 3.2 mag, 5.0mi depth 13 mi from May, ID
5/4/1992 - 3.0 mag, 5.0mi depth 15 mi from May, ID
5/4/1992 - 3.4 mag, 5.0mi depth 14 mi from May, ID
5/4/1992 - 3.5 mag, 5.0mi depth 13 mi from May, ID
5/4/1992 - 3.4 mag, 5.0mi depth 13 mi from May, ID
5/4/1992 - 3.3 mag, 5.0mi depth 18 mi from May, ID
5/4/1992 - 4.6 mag, 10.0mi depth 7 mi from May, ID
4/30/1992 - 3.7 mag, 5.0mi depth 15 mi from May, ID
4/25/1992 - 3.3 mag, 5.0mi depth 11 mi from May, ID
2/19/1992 - 3.1 mag, 5.0mi depth 7 mi from May, ID
2/16/1992 - 2.8 mag, 5.0mi depth 6 mi from May, ID
2/15/1992 - 3.1 mag, 5.0mi depth 7 mi from May, ID
12/30/1991 - 3.0 mag, 5.0mi depth 8 mi from May, ID
12/28/1991 - 3.1 mag, 5.0mi depth 8 mi from May, ID
5/20/1991 - 3.3 mag, 5.0mi depth 15 mi from May, ID
10/7/1990 - 3.4 mag, 10.0mi depth 5 mi from May, ID
1/15/1990 - 3.0 mag, 5.0mi depth 18 mi from May, ID
1/24/1989 - 3.5 mag, 5.0mi depth 13 mi from May, ID
7/14/1988 - 3.5 mag, 5.0mi depth 12 mi from May, ID
4/26/1986 - 2.6 mag, 5.0mi depth 19 mi from Leadore, ID
12/12/1985 - 3.0 mag, 5.0mi depth 18 mi from Leadore, ID
7/17/1985 - 3.6 mag, 5.0mi depth 24 mi from Salmon, ID
7/17/1985 - 3.5 mag, 5.0mi depth 23 mi from Salmon, ID
7/8/1985 - 3.3 mag, 5.0mi depth 12 mi from May, ID
3/23/1985 - 3.4 mag, 5.0mi depth 22 mi from May, ID
3/23/1985 - 3.5 mag, 5.0mi depth 18 mi from May, ID
2/19/1985 - 3.0 mag, 5.0mi depth 15 mi from Leadore, ID
2/12/1985 - 3.2 mag, 5.0mi depth 12 mi from Leadore, ID
1/18/1985 - 3.7 mag, 10.0mi depth 14 mi from May, ID
9/14/1984 - 3.6 mag, 10.0mi depth 35 mi from Carmen, ID
8/22/1984 - 5.6 mag, 10.0mi depth 11 mi from May, ID
12/5/1983 - 3.5 mag, 10.0mi depth 21 mi from May, ID
10/29/1978 - 3.3 mag, 5.0mi depth 28 mi from Salmon, ID
10/29/1978 - 4.2 mag, 5.0mi depth 23 mi from Salmon, ID
7/19/1978 - 3.6 mag, 5.0mi depth 26 mi from Salmon, ID
2/25/1978 - 3.0 mag, 5.0mi depth 4 mi from May, ID
2/13/1978 - 3.3 mag, 5.0mi depth 31 mi from Salmon, ID
9/4/1976 - 3.1 mag, 5.0mi depth 19 mi from Leadore, ID

8/22/1984 - 5.6 mag, 10.0mi depth 11 mi from May, ID
6/7/1994 - 4.8 mag, 5.0mi depth 9 mi from May, ID
5/4/1992 - 4.6 mag, 10.0mi depth 7 mi from May, ID
10/31/2005 - 4.5 mag, 5.0mi depth 13 mi from Tendoy, ID
5/6/1992 - 4.4 mag, 5.0mi depth 10 mi from May, ID
7/26/1976 - 4.3 mag, 10.0mi depth 17 mi from Salmon, ID
10/29/1978 - 4.2 mag, 5.0mi depth 23 mi from Salmon, ID
6/7/1994 - 4.1 mag, 5.0mi depth 5 mi from May, ID
5/19/1992 - 3.8 mag, 5.0mi depth 4 mi from May, ID
7/4/1992 - 3.8 mag, 10.0mi depth 4 mi from May, ID
6/7/1994 - 3.8 mag, 5.0mi depth 8 mi from May, ID
4/4/1975 - 3.8 mag, 5.0mi depth 20 mi from Leadore, ID
8/29/1997 - 3.7 mag, 9.9mi depth 12 mi from Leadore, ID
4/30/1992 - 3.7 mag, 5.0mi depth 15 mi from May, ID
1/18/1985 - 3.7 mag, 10.0mi depth 14 mi from May, ID
1/13/1998 - 3.6 mag, 5.0mi depth 14 mi from Tendoy, ID
7/19/1978 - 3.6 mag, 5.0mi depth 26 mi from Salmon, ID
7/17/1985 - 3.6 mag, 5.0mi depth 24 mi from Salmon, ID
9/14/1984 - 3.6 mag, 10.0mi depth 35 mi from Carmen, ID
4/24/1996 - 3.6 mag, 5.0mi depth 15 mi from May, ID
5/4/1992 - 3.5 mag, 5.0mi depth 13 mi from May, ID
11/25/2005 - 3.5 mag, 5.0mi depth 23 mi from Salmon, ID
3/23/1985 - 3.5 mag, 5.0mi depth 18 mi from May, ID
7/17/1985 - 3.5 mag, 5.0mi depth 23 mi from Salmon, ID
12/5/2000 - 3.5 mag, 5.0mi depth 13 mi from Tendoy, ID
12/5/1983 - 3.5 mag, 10.0mi depth 21 mi from May, ID
5/5/1992 - 3.5 mag, 5.0mi depth 13 mi from May, ID
7/14/1988 - 3.5 mag, 5.0mi depth 12 mi from May, ID
2/5/2003 - 3.5 mag, 5.0mi depth 25 mi from Leadore, ID
1/24/1989 - 3.5 mag, 5.0mi depth 13 mi from May, ID
5/18/1992 - 3.5 mag, 5.0mi depth 10 mi from May, ID
5/4/1992 - 3.4 mag, 5.0mi depth 14 mi from May, ID
10/7/1990 - 3.4 mag, 10.0mi depth 5 mi from May, ID
3/23/1985 - 3.4 mag, 5.0mi depth 22 mi from May, ID
5/4/1992 - 3.4 mag, 5.0mi depth 13 mi from May, ID
8/28/1992 - 3.4 mag, 5.0mi depth 7 mi from Leadore, ID
2/22/1993 - 3.4 mag, 5.0mi depth 6 mi from May, ID
1/17/1997 - 3.4 mag, 5.0mi depth 5 mi from May, ID
2/13/1978 - 3.3 mag, 5.0mi depth 31 mi from Salmon, ID
5/20/1991 - 3.3 mag, 5.0mi depth 15 mi from May, ID
5/4/1992 - 3.3 mag, 5.0mi depth 18 mi from May, ID
7/8/1985 - 3.3 mag, 5.0mi depth 12 mi from May, ID
10/29/1978 - 3.3 mag, 5.0mi depth 28 mi from Salmon, ID
12/8/2000 - 3.3 mag, 4.4mi depth 21 mi from Leadore, ID
4/25/1992 - 3.3 mag, 5.0mi depth 11 mi from May, ID
2/23/2019 - 3.3 mag, 10.0mi depth 30 mi from Salmon, ID
9/30/1992 - 3.2 mag, 5.0mi depth 15 mi from May, ID
3/21/1998 - 3.2 mag, 5.0mi depth 7 mi from May, ID
5/5/1992 - 3.2 mag, 5.0mi depth 14 mi from May, ID
5/5/1992 - 3.2 mag, 5.0mi depth 13 mi from May, ID
12/13/2001 - 3.2 mag, 5.0mi depth 38 mi from Salmon, ID
2/12/1985 - 3.2 mag, 5.0mi depth 12 mi from Leadore, ID
4/6/1997 - 3.1 mag, 5.0mi depth 16 mi from May, ID
9/4/1976 - 3.1 mag, 5.0mi depth 19 mi from Leadore, ID
12/28/1991 - 3.1 mag, 5.0mi depth 8 mi from May, ID
3/1/1998 - 3.1 mag, 5.0mi depth 6 mi from May, ID
2/15/1992 - 3.1 mag, 5.0mi depth 7 mi from May, ID
5/30/1999 - 3.1 mag, 10.0mi depth 21 mi from May, ID
2/19/1992 - 3.1 mag, 5.0mi depth 7 mi from May, ID
1/15/1990 - 3.0 mag, 5.0mi depth 18 mi from May, ID
9/3/2005 - 3.0 mag, 12.6mi depth 24 mi from Salmon, ID
2/19/1985 - 3.0 mag, 5.0mi depth 15 mi from Leadore, ID
2/27/2023 - 3.0 mag, 13.3mi depth 16 mi from Leadore, ID
2/25/1978 - 3.0 mag, 5.0mi depth 4 mi from May, ID
12/30/1991 - 3.0 mag, 5.0mi depth 8 mi from May, ID
6/14/2006 - 3.0 mag, 9.4mi depth 19 mi from Leadore, ID
12/12/1985 - 3.0 mag, 5.0mi depth 18 mi from Leadore, ID
5/18/1992 - 3.0 mag, 5.0mi depth 3 mi from May, ID
5/4/1992 - 3.0 mag, 5.0mi depth 15 mi from May, ID
12/21/2023 - 2.9 mag, 16.3mi depth 15 mi from Salmon, ID
9/3/2005 - 2.9 mag, 11.1mi depth 24 mi from Salmon, ID
2/16/1992 - 2.8 mag, 5.0mi depth 6 mi from May, ID
7/24/2012 - 2.7 mag, 6.6mi depth 17 mi from Leadore, ID
11/17/2021 - 2.7 mag, 10.0mi depth 26 mi from Leadore, ID
1/2/2022 - 2.6 mag, 5.0mi depth 24 mi from Leadore, ID
3/13/2007 - 2.6 mag, 13.7mi depth 5 mi from Leadore, ID
12/12/2011 - 2.6 mag, 13.6mi depth 3 mi from Salmon, ID
4/26/1986 - 2.6 mag, 5.0mi depth 19 mi from Leadore, ID
8/3/2013 - 2.5 mag, 11.8mi depth 8 mi from May, ID
3/28/2006 - 2.5 mag, 11.0mi depth 24 mi from Salmon, ID
1/2/2022 - 2.5 mag, 5.0mi depth 24 mi from Leadore, ID
7/29/2013 - 2.2 mag, 11.6mi depth 9 mi from Tendoy, ID
2/6/2013 - 2.2 mag, 29.4mi depth 1 mi from Carmen, ID
4/9/2013 - 2.1 mag, 10.8mi depth 6 mi from May, ID
2/6/2013 - 2.1 mag, 28.0mi depth 0 mi from Carmen, ID
10/18/2013 - 2.0 mag, 24.5mi depth 17 mi from Tendoy, ID
1/29/2014 - 1.8 mag, 6.9mi depth 16 mi from Salmon, ID
3/21/2013 - 1.6 mag, 7.2mi depth 14 mi from May, ID
10/27/2023 - 1.5 mag, 6.5mi depth 19 mi from Salmon, ID
3/21/2013 - 1.4 mag, 7.2mi depth 14 mi from May, ID
6/19/2013 - 1.4 mag, 12.7mi depth 19 mi from Leadore, ID
4/22/2013 - 1.3 mag, 0.3mi depth 23 mi from Leadore, ID
5/8/2013 - 1.3 mag, 6.9mi depth 8 mi from May, ID
1/16/2014 - 1.3 mag, 12.0mi depth 6 mi from Salmon, ID
5/27/2013 - 1.3 mag, 0.7mi depth 13 mi from Leadore, ID
4/28/2014 - 1.2 mag, 0.5mi depth 16 mi from Leadore, ID
6/23/2013 - 1.2 mag, 12.9mi depth 18 mi from Leadore, ID
10/9/2013 - 1.1 mag, 12.2mi depth 18 mi from Leadore, ID
4/26/2013 - 1.1 mag, 9.5mi depth 17 mi from Leadore, ID
9/7/2013 - 1.0 mag, 7.0mi depth 10 mi from Leadore, ID

View All

Earthquake Probability for Lemhi County, ID

View the probability of a major earthquake within the next 50 years in Lemhi County, ID.

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

70.02%

5.1

63.50%

5.2

63.50%

5.2

57.02%

5.3

50.76%

5.4

44.86%

5.5

39.42%

5.6

34.48%

5.7

30.08%

5.8

26.19%

5.9

22.78%

6.0

19.84%

6.1

16.93%

6.2

14.43%

6.3

12.16%

6.4

10.23%

6.5

8.59%

6.6

6.71%

6.7

5.02%

6.8

3.76%

6.9

2.19%

7.0

0.50%

7.1

0.23%

7.2

0.08%

7.3

0.02%

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 Lemhi County, ID

View the number of earthquake incidents in Lemhi County, ID by year that are more than 2.5 Magnitude.

List of Earthquake Incidents for Lemhi County, ID

Total Number of Earthquakes in Lemhi County, ID within 30 miles. All distances and depths in the table are measured in miles.

Date

Magnitude

Depth

12/21/2023

2.9

16.3

Earthquake Information for Lemhi County, Idaho

Earthquake Probability for Lemhi County, ID

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

Earthquake Count for Lemhi County, ID

List of Earthquake Incidents for Lemhi County, ID

Risk Of Natural Disasters In Lemhi County, ID

Related Pages

Idaho Earthquakes by City