M1.6 earthquake 11 km SE of Challis, Idaho

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

Montana Bureau of Mines and Geology

Local time

Sun, Nov 22, 2015, 6:09 AM MST

UTC

2015-11-22 13:09:31 UTC

Depth

4.3 km (2.7 mi), shallow

Epicenter

44.446° N, 114.111° W

Region

Idaho

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.8 km horizontally, 1.7 km in depth

Magnitude uncertainty

±0.14

Depth from

From location

Station coverage gap

100°

Stations used

9

• Challis, IdahoPopulation 1,043. Forecast12 kmSE
• Boise, IdahoPopulation 235,684. Forecast191 kmENE
• Calgary, CanadaPopulation 1,306,784. Forecast734 kmS

After

1. 1.911 km ESE of Challis, IdahoSat, Nov 28, 5:44 AM MST · 3964 days ago · 7 km deep · 0 km away
2. 1.69 km NNW of Challis, IdahoTue, Dec 1, 1:04 AM MST · 3961 days ago · 5 km deep · 21 km away
3. 1.919 km NW of Stanley, IdahoThu, Dec 3, 1:44 AM MST · 3959 days ago · 20 km deep · 80 km away
4. 1.7southern IdahoFri, Dec 4, 8:48 AM MST · 3958 days ago · 3 km deep · 21 km away
5. 1.612 km SE of Challis, IdahoMon, Dec 7, 4:52 AM MST · 3955 days ago · 5 km deep · 2 km away
6. 1.53 km NNW of Challis, IdahoTue, Dec 8, 3:30 PM MST · 3953 days ago · 6 km deep · 14 km away
7. 1.64 km NNW of Challis, IdahoTue, Dec 8, 3:38 PM MST · 3953 days ago · 3 km deep · 16 km away
8. 2.46 km NNW of Challis, IdahoTue, Dec 8, 3:43 PM MST · 3953 days ago · 5 km deep · 17 km away
9. 1.84 km NNW of Challis, IdahoTue, Dec 8, 3:50 PM MST · 3953 days ago · 4 km deep · 16 km away
10. 2.66 km NW of Challis, IdahoTue, Dec 8, 3:52 PM MST · 3953 days ago · 5 km deep · 18 km away
11. 2.16 km NNW of Challis, IdahoTue, Dec 8, 3:57 PM MST · 3953 days ago · 5 km deep · 18 km away
12. 2.76 km NW of Challis, IdahoTue, Dec 8, 4:07 PM MST · 3953 days ago · 5 km deep · 18 km away · felt by 1
13. 1.7southern IdahoTue, Dec 8, 4:16 PM MST · 3953 days ago · 1 km deep · 15 km away
14. 1.54 km NNW of Challis, IdahoTue, Dec 8, 4:35 PM MST · 3953 days ago · 1 km deep · 15 km away
15. 2.4southern IdahoTue, Dec 8, 4:36 PM MST · 3953 days ago · 6 km deep · 17 km away
16. 1.82 km NNW of Challis, IdahoTue, Dec 8, 4:50 PM MST · 3953 days ago · 5 km deep · 14 km away
17. 1.62 km NNW of Challis, IdahoTue, Dec 8, 4:58 PM MST · 3953 days ago · 5 km deep · 14 km away
18. 1.93 km NNW of Challis, IdahoTue, Dec 8, 5:43 PM MST · 3953 days ago · 6 km deep · 15 km away
19. 1.71 km NNW of Challis, IdahoTue, Dec 8, 5:44 PM MST · 3953 days ago · 5 km deep · 12 km away
20. 1.82 km NW of Challis, IdahoTue, Dec 8, 6:46 PM MST · 3953 days ago · 5 km deep · 14 km away
21. 2.76 km NNW of Challis, IdahoTue, Dec 8, 8:43 PM MST · 3953 days ago · 5 km deep · 18 km away
22. 1.86 km NNW of Challis, IdahoTue, Dec 8, 9:36 PM MST · 3953 days ago · 3 km deep · 17 km away
23. 2.06 km NNW of Challis, IdahoTue, Dec 8, 9:55 PM MST · 3953 days ago · 5 km deep · 18 km away
24. 1.95 km NNW of Challis, IdahoTue, Dec 8, 10:51 PM MST · 3953 days ago · 5 km deep · 17 km away
25. 2.55 km NNW of Challis, IdahoTue, Dec 8, 11:38 PM MST · 3953 days ago · 7 km deep · 17 km away
26. 1.92 km N of Challis, IdahoWed, Dec 9, 12:33 AM MST · 3953 days ago · 6 km deep · 14 km away
27. 1.84 km NNW of Challis, IdahoWed, Dec 9, 1:39 AM MST · 3953 days ago · 5 km deep · 16 km away
28. 1.62 km NNW of Challis, IdahoWed, Dec 9, 4:29 AM MST · 3953 days ago · 5 km deep · 14 km away
29. 1.96 km NNW of Challis, IdahoWed, Dec 9, 12:45 PM MST · 3952 days ago · 5 km deep · 17 km away
30. 1.83 km NW of Challis, IdahoWed, Dec 9, 4:56 PM MST · 3952 days ago · 8 km deep · 15 km away
31. 1.822 km SE of Challis, IdahoWed, Dec 9, 8:02 PM MST · 3952 days ago · 6 km deep · 11 km away
32. 1.63 km NNW of Challis, IdahoThu, Dec 10, 12:59 AM MST · 3952 days ago · 4 km deep · 14 km away
33. 1.735 km NW of Mackay, IdahoThu, Dec 10, 2:29 AM MST · 3952 days ago · 5 km deep · 38 km away
34. 2.25 km NNW of Challis, IdahoThu, Dec 10, 12:03 PM MST · 3951 days ago · 6 km deep · 17 km away
35. 1.72 km NNW of Challis, IdahoThu, Dec 10, 12:09 PM MST · 3951 days ago · 6 km deep · 13 km away
36. 1.93 km NNW of Challis, IdahoThu, Dec 10, 12:19 PM MST · 3951 days ago · 5 km deep · 14 km away
37. 1.63 km N of Challis, IdahoThu, Dec 10, 1:35 PM MST · 3951 days ago · 5 km deep · 14 km away
38. 2.03 km NNW of Challis, IdahoThu, Dec 10, 2:26 PM MST · 3951 days ago · 9 km deep · 15 km away
39. 3.37 km NNW of Challis, IdahoThu, Dec 10, 2:54 PM MST · 3951 days ago · 6 km deep · 18 km away · felt by 1
40. 2.55 km NNW of Challis, IdahoThu, Dec 10, 3:02 PM MST · 3951 days ago · 8 km deep · 17 km away · felt by 1
41. 1.71 km NNE of Challis, IdahoThu, Dec 10, 3:23 PM MST · 3951 days ago · 9 km deep · 12 km away
42. 2.26 km NNW of Challis, IdahoThu, Dec 10, 3:52 PM MST · 3951 days ago · 4 km deep · 17 km away
43. 2.76 km NW of Challis, IdahoThu, Dec 10, 6:50 PM MST · 3951 days ago · 7 km deep · 17 km away
44. 3.55 km NW of Challis, IdahoThu, Dec 10, 6:51 PM MST · 3951 days ago · 7 km deep · 17 km away · felt by 4
45. 2.28 km NNW of Challis, IdahoThu, Dec 10, 6:55 PM MST · 3951 days ago · 4 km deep · 19 km away
46. 2.25 km NNW of Challis, IdahoThu, Dec 10, 10:35 PM MST · 3951 days ago · 7 km deep · 17 km away
47. 1.74 km NNW of Challis, IdahoThu, Dec 10, 11:13 PM MST · 3951 days ago · 5 km deep · 15 km away
48. 2.0southern IdahoThu, Dec 10, 11:31 PM MST · 3951 days ago · 7 km deep · 17 km away
49. 1.65 km NW of Challis, IdahoFri, Dec 11, 12:03 AM MST · 3951 days ago · 6 km deep · 17 km away
50. 2.66 km NNW of Challis, IdahoFri, Dec 11, 1:15 AM MST · 3951 days ago · 8 km deep · 17 km away
51. 2.46 km NNW of Challis, IdahoFri, Dec 11, 3:53 AM MST · 3951 days ago · 8 km deep · 18 km away
52. 2.25 km NNW of Challis, IdahoFri, Dec 11, 7:12 AM MST · 3951 days ago · 8 km deep · 17 km away
53. 1.75 km NNW of Challis, IdahoFri, Dec 11, 9:15 AM MST · 3950 days ago · 9 km deep · 17 km away
54. 1.85 km NNW of Challis, IdahoFri, Dec 11, 3:40 PM MST · 3950 days ago · 9 km deep · 17 km away
55. 1.58 km NW of Challis, IdahoFri, Dec 11, 7:52 PM MST · 3950 days ago · 4 km deep · 20 km away
56. 1.75 km NNW of Challis, IdahoFri, Dec 11, 9:53 PM MST · 3950 days ago · 5 km deep · 16 km away
57. 2.06 km NNW of Challis, IdahoSat, Dec 12, 6:47 AM MST · 3950 days ago · 9 km deep · 18 km away
58. 1.68 km SE of Challis, IdahoSun, Dec 13, 7:17 AM MST · 3949 days ago · 0 km deep · 3 km away
59. 1.78 km NNW of Challis, IdahoSun, Dec 13, 10:18 AM MST · 3948 days ago · 5 km deep · 19 km away
60. 2.110 km SE of Challis, IdahoMon, Dec 14, 5:10 PM MST · 3947 days ago · 5 km deep · 2 km away

The first 60 of 86.

Before

1. 2.013 km SE of Challis, IdahoSat, Nov 21, 7:52 PM MST · 3970 days ago · 7 km deep · 2 km away
2. 2.413 km ESE of Challis, IdahoMon, Nov 16, 7:02 PM MST · 3975 days ago · 11 km deep · 1 km away
3. 2.021 km NNW of Challis, IdahoSat, Nov 14, 8:10 AM MST · 3978 days ago · 4 km deep · 31 km away
4. 1.823 km NNW of Challis, IdahoTue, Nov 10, 8:17 AM MST · 3982 days ago · -3 km deep · 34 km away
5. 1.626 km SSW of Clayton, IdahoMon, Nov 9, 12:30 PM MST · 3982 days ago · 14 km deep · 55 km away
6. 1.810 km NNE of Stanley, IdahoSun, Nov 8, 7:01 AM MST · 3984 days ago · -1 km deep · 63 km away
7. 1.65 km NNW of Challis, IdahoMon, Nov 2, 1:36 AM MST · 3990 days ago · -3 km deep · 17 km away
8. 1.832 km N of Mackay, IdahoMon, Nov 2, 1:28 AM MST · 3990 days ago · 10 km deep · 45 km away
9. 1.914 km SE of Challis, IdahoSat, Oct 31, 6:58 AM MDT · 3992 days ago · 9 km deep · 3 km away
10. 1.615 km SE of Challis, IdahoSat, Oct 31, 5:26 AM MDT · 3992 days ago · 6 km deep · 4 km away
11. 2.411 km NNE of Stanley, IdahoThu, Oct 29, 10:22 AM MDT · 3993 days ago · 8 km deep · 63 km away
12. 2.110 km NNE of Stanley, IdahoMon, Oct 26, 7:32 AM MDT · 3997 days ago · -1 km deep · 63 km away
13. 2.711 km NNW of Challis, IdahoSun, Oct 25, 12:34 PM MDT · 3997 days ago · 4 km deep · 22 km away · felt by 1

From the USGS Earthquake Hazards Program and its partner networks, event mb80109069. Read Mon, Oct 5, 2026, 3:43 AM UTC.