M1.6 earthquake 34 km SE of Stanley, Idaho

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

Montana Bureau of Mines and Geology

Local time

Sat, Sep 22, 2018, 3:14 AM MDT

UTC

2018-09-22 09:14:03 UTC

Depth

14.3 km (8.9 mi), shallow

Epicenter

43.964° N, 114.686° W

Region

Idaho

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 1.1 km in depth

Magnitude uncertainty

±0.08

Depth from

From location

Station coverage gap

86°

Stations used

5

• Sun Valley, IdahoPopulation 1,422. Forecast40 kmNW
• Mountain Home, IdahoPopulation 13,730. Forecast123 kmNE
• Boise, IdahoPopulation 235,684. Forecast128 kmENE
• Calgary, CanadaPopulation 1,306,784. Forecast789 kmS

After

1. 1.610 km SE of Challis, IdahoThu, Sep 27, 8:06 AM MDT · 2929 days ago · 7 km deep · 70 km away
2. 2.18 km N of Stanley, IdahoFri, Oct 5, 5:16 AM MDT · 2921 days ago · 4 km deep · 42 km away
3. 2.43 km NW of Stanley, IdahoFri, Oct 5, 5:16 AM MDT · 2921 days ago · 5 km deep · 38 km away
4. 1.89 km N of Stanley, IdahoFri, Oct 5, 5:24 AM MDT · 2921 days ago · 6 km deep · 43 km away
5. 1.6southern IdahoFri, Oct 5, 5:31 AM MDT · 2921 days ago · 6 km deep · 42 km away
6. 2.512 km NNE of Stanley, IdahoFri, Oct 5, 5:34 AM MDT · 2921 days ago · 5 km deep · 43 km away · felt by 1
7. 1.67 km NNW of Stanley, IdahoFri, Oct 5, 7:49 AM MDT · 2921 days ago · 5 km deep · 42 km away
8. 1.67 km NNW of Stanley, IdahoFri, Oct 5, 7:59 AM MDT · 2921 days ago · 4 km deep · 42 km away
9. 1.69 km N of Stanley, IdahoSat, Oct 6, 5:12 AM MDT · 2920 days ago · 4 km deep · 43 km away
10. 1.616 km SE of Challis, IdahoSat, Oct 6, 10:22 AM MDT · 2920 days ago · 4 km deep · 68 km away
11. 1.68 km N of Stanley, IdahoTue, Oct 9, 5:19 AM MDT · 2917 days ago · 6 km deep · 42 km away
12. 2.49 km N of Stanley, IdahoTue, Oct 9, 7:25 AM MDT · 2917 days ago · 3 km deep · 42 km away
13. 1.633 km W of Challis, IdahoThu, Oct 18, 5:12 AM MDT · 2908 days ago · 2 km deep · 66 km away
14. 1.634 km NW of Mackay, IdahoSun, Oct 21, 10:41 AM MDT · 2905 days ago · 1 km deep · 62 km away
15. 2.320 km WNW of Mackay, IdahoFri, Oct 26, 11:41 AM MDT · 2900 days ago · 6 km deep · 66 km away · felt by 1
16. 1.65 km N of Stanley, IdahoThu, Nov 1, 7:46 AM MDT · 2894 days ago · 3 km deep · 40 km away
17. 1.76 km N of Stanley, IdahoThu, Nov 1, 7:50 AM MDT · 2894 days ago · 0 km deep · 40 km away
18. 2.19 km NNW of Stanley, IdahoSat, Nov 3, 2:19 AM MDT · 2892 days ago · 4 km deep · 44 km away
19. 2.26 km N of Stanley, IdahoSat, Nov 3, 6:38 AM MDT · 2892 days ago · 3 km deep · 40 km away
20. 1.72 km N of Challis, IdahoWed, Nov 14, 8:43 PM MST · 2881 days ago · 1 km deep · 72 km away
21. 2.125 km SSW of Clayton, IdahoSun, Nov 18, 8:53 AM MST · 2877 days ago · 5 km deep · 17 km away
22. 1.69 km NNW of Stanley, IdahoMon, Nov 19, 4:33 PM MST · 2876 days ago · 4 km deep · 43 km away
23. 3.115 km NNW of Stanley, IdahoTue, Nov 20, 12:11 AM MST · 2875 days ago · 5 km deep · 49 km away · felt by 1
24. 1.69 km NNW of Stanley, IdahoTue, Nov 20, 12:31 AM MST · 2875 days ago · 4 km deep · 43 km away

Before

1. 2.813 km SE of Challis, IdahoSun, Sep 16, 9:34 AM MDT · 2940 days ago · 5 km deep · 69 km away · felt by 3
2. 2.339 km NNW of Stanley, IdahoWed, Sep 5, 4:46 PM MDT · 2951 days ago · 5 km deep · 73 km away
3. 2.08 km N of Stanley, IdahoWed, Sep 5, 2:13 AM MDT · 2951 days ago · 10 km deep · 42 km away
4. 1.89 km N of Stanley, IdahoWed, Sep 5, 2:12 AM MDT · 2951 days ago · 3 km deep · 43 km away
5. 1.935 km ESE of Clayton, IdahoFri, Aug 31, 6:06 PM MDT · 2956 days ago · 0 km deep · 61 km away
6. 1.813 km NNE of Clayton, IdahoMon, Aug 27, 8:59 AM MDT · 2960 days ago · 3 km deep · 53 km away
7. 2.07 km N of Stanley, IdahoMon, Aug 27, 2:20 AM MDT · 2960 days ago · 13 km deep · 41 km away

From the USGS Earthquake Hazards Program and its partner networks, event mb80311069. Read Sun, Oct 4, 2026, 3:13 PM UTC.