M1.8 earthquake 19 km SE of Challis, Idaho

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Montana Bureau of Mines and Geology

Local time

Tue, Feb 2, 2016, 12:17 PM MST

UTC

2016-02-02 19:17:27 UTC

Depth

2.5 km (1.5 mi), shallow

Epicenter

44.393° N, 114.045° W

Region

Idaho

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.8 km horizontally, 0.6 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

124°

Stations used

9

• Challis, IdahoPopulation 1,043. Forecast19 kmSE
• Jerome, IdahoPopulation 11,184. Forecast189 kmNNE
• Boise, IdahoPopulation 235,684. Forecast193 kmENE
• Calgary, CanadaPopulation 1,306,784. Forecast740 kmS

After

1. 1.622 km WNW of Challis, IdahoTue, Feb 2, 2:27 PM MST · 3897 days ago · 5 km deep · 41 km away
2. 1.822 km WNW of Challis, IdahoTue, Feb 2, 2:30 PM MST · 3897 days ago · 6 km deep · 41 km away
3. 2.315 km W of Clayton, IdahoMon, Feb 8, 4:23 AM MST · 3891 days ago · 8 km deep · 46 km away
4. 1.813 km SE of Challis, IdahoMon, Feb 8, 6:41 PM MST · 3891 days ago · 7 km deep · 6 km away
5. 2.212 km SE of Challis, IdahoTue, Feb 9, 11:46 AM MST · 3890 days ago · 8 km deep · 7 km away
6. 1.512 km SE of Challis, IdahoFri, Feb 12, 9:30 PM MST · 3887 days ago · 6 km deep · 7 km away
7. 1.920 km SE of Challis, IdahoSun, Feb 14, 3:31 AM MST · 3885 days ago · 3 km deep · 3 km away
8. 1.810 km NW of Challis, IdahoSun, Feb 14, 10:13 AM MST · 3885 days ago · -1 km deep · 30 km away
9. 1.512 km SE of Challis, IdahoSun, Feb 14, 11:08 PM MST · 3884 days ago · 6 km deep · 7 km away
10. 1.914 km SE of Challis, IdahoTue, Feb 16, 12:45 PM MST · 3883 days ago · 7 km deep · 5 km away
11. 1.622 km W of Challis, IdahoSun, Feb 21, 10:58 AM MST · 3878 days ago · 5 km deep · 41 km away
12. 2.223 km WNW of Challis, IDSun, Feb 21, 11:25 AM MST · 3878 days ago · 6 km deep · 41 km away
13. 1.722 km WNW of Challis, IdahoSun, Feb 21, 1:35 PM MST · 3878 days ago · 7 km deep · 41 km away
14. 1.823 km WNW of Challis, IdahoTue, Feb 23, 7:02 PM MST · 3876 days ago · 5 km deep · 41 km away
15. 3.223 km WNW of Challis, IdahoFri, Feb 26, 12:15 AM MST · 3873 days ago · 7 km deep · 41 km away
16. 3.314 km NNE of Challis, IdahoFri, Feb 26, 12:39 AM MST · 3873 days ago · 6 km deep · 26 km away · felt by 1
17. 1.821 km W of Challis, IdahoFri, Feb 26, 1:56 AM MST · 3873 days ago · 3 km deep · 40 km away
18. 2.022 km WNW of Challis, IdahoFri, Feb 26, 2:16 AM MST · 3873 days ago · 7 km deep · 41 km away
19. 2.316 km NNE of Challis, IdahoFri, Feb 26, 11:53 PM MST · 3872 days ago · 6 km deep · 28 km away
20. 3.615 km NE of Challis, IdahoSat, Feb 27, 6:29 PM MST · 3872 days ago · 7 km deep · 26 km away · felt by 9
21. 1.722 km WNW of Challis, IdahoSat, Feb 27, 10:12 PM MST · 3872 days ago · 5 km deep · 40 km away
22. 2.114 km NE of Challis, IdahoSun, Feb 28, 4:07 AM MST · 3871 days ago · 5 km deep · 24 km away
23. 1.622 km WNW of Challis, IdahoSun, Feb 28, 12:05 PM MST · 3871 days ago · 4 km deep · 41 km away
24. 2.122 km W of Challis, IdahoMon, Feb 29, 5:43 AM MST · 3870 days ago · 5 km deep · 40 km away
25. 1.724 km WNW of Challis, IdahoMon, Feb 29, 5:53 AM MST · 3870 days ago · 8 km deep · 43 km away
26. 1.623 km W of Challis, IdahoMon, Feb 29, 7:11 AM MST · 3870 days ago · 2 km deep · 41 km away
27. 1.714 km NE of Challis, IdahoMon, Feb 29, 8:12 AM MST · 3870 days ago · -2 km deep · 24 km away
28. 2.223 km WNW of Challis, IdahoMon, Feb 29, 4:49 PM MST · 3870 days ago · 7 km deep · 41 km away
29. 2.013 km SE of Challis, IdahoTue, Mar 1, 3:18 AM MST · 3869 days ago · 5 km deep · 6 km away
30. 1.622 km WNW of Challis, IdahoTue, Mar 1, 4:27 AM MST · 3869 days ago · 7 km deep · 41 km away
31. 1.514 km W of Clayton, IdahoTue, Mar 1, 10:17 PM MST · 3869 days ago · 6 km deep · 46 km away
32. 2.523 km W of Challis, IdahoThu, Mar 3, 4:52 AM MST · 3867 days ago · 1 km deep · 41 km away
33. 1.714 km NE of Challis, IdahoFri, Mar 4, 1:10 PM MST · 3866 days ago · 5 km deep · 22 km away
34. 1.822 km W of Challis, IdahoMon, Mar 7, 4:19 PM MST · 3863 days ago · 4 km deep · 41 km away
35. 2.614 km NE of Challis, IdahoSat, Mar 12, 8:35 PM MST · 3858 days ago · 10 km deep · 24 km away
36. 1.8southern IdahoSun, Mar 13, 12:44 AM MST · 3857 days ago · 7 km deep · 28 km away
37. 1.525 km SE of Challis, IdahoSun, Mar 13, 7:24 AM MDT · 3857 days ago · 5 km deep · 6 km away
38. 2.2southern IdahoSun, Mar 13, 12:51 PM MDT · 3857 days ago · 9 km deep · 23 km away
39. 1.622 km WNW of Challis, IdahoWed, Mar 16, 7:23 AM MDT · 3854 days ago · 3 km deep · 41 km away
40. 1.917 km NNE of Challis, IdahoThu, Mar 17, 12:46 PM MDT · 3853 days ago · 5 km deep · 27 km away · felt by 1
41. 1.622 km WNW of Challis, IdahoSat, Mar 19, 2:26 PM MDT · 3851 days ago · 5 km deep · 41 km away
42. 1.639 km NNE of Leadore, IdahoSat, Mar 19, 8:43 PM MDT · 3851 days ago · 5 km deep · 99 km away
43. 1.510 km SE of Challis, IdahoThu, Mar 24, 1:59 AM MDT · 3846 days ago · 5 km deep · 9 km away
44. 1.629 km E of Clayton, IdahoSat, Mar 26, 11:40 AM MDT · 3844 days ago · 5 km deep · 18 km away
45. 1.722 km WNW of Challis, IdahoSat, Mar 26, 9:09 PM MDT · 3844 days ago · 6 km deep · 41 km away

Before

1. 2.32 km NNW of Challis, IdahoSun, Jan 31, 6:38 PM MST · 3899 days ago · 8 km deep · 22 km away
2. 1.6Idaho-Montana border regionSun, Jan 31, 2:12 PM MST · 3899 days ago · 8 km deep · 89 km away
3. 3.136 km SW of Lima, MontanaSun, Jan 31, 1:00 PM MST · 3899 days ago · 5 km deep · 90 km away
4. 1.64 km NNW of Challis, IdahoSun, Jan 31, 11:43 AM MST · 3899 days ago · 5 km deep · 23 km away
5. 1.7southern IdahoSun, Jan 31, 3:49 AM MST · 3899 days ago · 1 km deep · 5 km away
6. 1.822 km SE of Challis, IdahoSat, Jan 30, 6:18 PM MST · 3900 days ago · 1 km deep · 4 km away
7. 1.614 km SE of Challis, IdahoSat, Jan 30, 1:06 PM MST · 3900 days ago · 5 km deep · 5 km away
8. 2.013 km NE of Challis, IdahoFri, Jan 29, 10:27 PM MST · 3901 days ago · 5 km deep · 23 km away
9. 1.612 km NE of Challis, IdahoFri, Jan 29, 2:58 AM MST · 3901 days ago · 3 km deep · 23 km away
10. 1.611 km ENE of Challis, IdahoFri, Jan 29, 1:06 AM MST · 3901 days ago · 5 km deep · 19 km away
11. 1.711 km NE of Challis, IdahoThu, Jan 28, 11:27 PM MST · 3901 days ago · 5 km deep · 21 km away
12. 1.79 km ESE of Challis, IdahoWed, Jan 27, 12:19 AM MST · 3903 days ago · 5 km deep · 10 km away
13. 1.820 km W of Challis, IdahoTue, Jan 26, 8:07 PM MST · 3904 days ago · 6 km deep · 38 km away
14. 1.619 km W of Challis, IdahoTue, Jan 26, 8:07 PM MST · 3904 days ago · 7 km deep · 37 km away
15. 1.822 km WNW of Challis, IdahoTue, Jan 26, 9:59 AM MST · 3904 days ago · 7 km deep · 41 km away
16. 1.723 km WNW of Challis, IdahoSun, Jan 24, 11:17 AM MST · 3906 days ago · 5 km deep · 41 km away
17. 2.122 km WNW of Challis, IdahoSun, Jan 24, 2:25 AM MST · 3906 days ago · 6 km deep · 41 km away
18. 1.523 km SE of Challis, IdahoSat, Jan 23, 10:24 PM MST · 3907 days ago · 1 km deep · 5 km away
19. 1.822 km WNW of Challis, IdahoSat, Jan 23, 7:04 AM MST · 3907 days ago · 6 km deep · 41 km away
20. 2.823 km WNW of Challis, IdahoSat, Jan 23, 12:56 AM MST · 3907 days ago · 6 km deep · 41 km away

From the USGS Earthquake Hazards Program and its partner networks, event mb80122999. Read Sun, Oct 4, 2026, 5:09 PM UTC.