M2.3 earthquake 39 km NNW of Stanley, Idaho

Magnitude

2.3 (ML, local (Richter)), micro

Magnitude from

Montana Bureau of Mines and Geology

Local time

Wed, Sep 5, 2018, 4:46 PM MDT

UTC

2018-09-05 22:46:08 UTC

Depth

5.2 km (3.2 mi), shallow

Epicenter

44.561° N, 115.064° W

Region

Idaho

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.5 km horizontally, 2.9 km in depth

Magnitude uncertainty

±0.14

Depth from

From location

Station coverage gap

131°

Stations used

7

• Challis, IdahoPopulation 1,043. Forecast66 kmW
• Boise, IdahoPopulation 235,684. Forecast139 kmNE
• Calgary, CanadaPopulation 1,306,784. Forecast725 kmS

After

1. 2.112 km WNW of Smiths Ferry, IdahoFri, Sep 14, 10:22 PM MDT · 2940 days ago · 6 km deep · 97 km away · felt by 1
2. 2.813 km SE of Challis, IdahoSun, Sep 16, 9:34 AM MDT · 2939 days ago · 5 km deep · 77 km away · felt by 3
3. 2.336 km ENE of Challis, IdahoTue, Sep 18, 12:30 AM MDT · 2937 days ago · 11 km deep · 99 km away
4. 2.434 km NE of Challis, IdahoTue, Sep 18, 1:00 AM MDT · 2937 days ago · 11 km deep · 95 km away
5. 1.634 km SE of Stanley, IdahoSat, Sep 22, 3:14 AM MDT · 2933 days ago · 14 km deep · 73 km away
6. 1.610 km SE of Challis, IdahoThu, Sep 27, 8:06 AM MDT · 2928 days ago · 7 km deep · 75 km away
7. 2.18 km N of Stanley, IdahoFri, Oct 5, 5:16 AM MDT · 2920 days ago · 4 km deep · 31 km away
8. 2.43 km NW of Stanley, IdahoFri, Oct 5, 5:16 AM MDT · 2920 days ago · 5 km deep · 36 km away
9. 1.89 km N of Stanley, IdahoFri, Oct 5, 5:24 AM MDT · 2920 days ago · 6 km deep · 30 km away
10. 1.6southern IdahoFri, Oct 5, 5:31 AM MDT · 2920 days ago · 6 km deep · 32 km away
11. 2.512 km NNE of Stanley, IdahoFri, Oct 5, 5:34 AM MDT · 2920 days ago · 5 km deep · 30 km away · felt by 1
12. 1.67 km NNW of Stanley, IdahoFri, Oct 5, 7:49 AM MDT · 2920 days ago · 5 km deep · 32 km away
13. 1.67 km NNW of Stanley, IdahoFri, Oct 5, 7:59 AM MDT · 2920 days ago · 4 km deep · 32 km away
14. 1.69 km N of Stanley, IdahoSat, Oct 6, 5:12 AM MDT · 2919 days ago · 4 km deep · 31 km away
15. 1.616 km SE of Challis, IdahoSat, Oct 6, 10:22 AM MDT · 2919 days ago · 4 km deep · 80 km away
16. 1.68 km N of Stanley, IdahoTue, Oct 9, 5:19 AM MDT · 2916 days ago · 6 km deep · 31 km away
17. 2.49 km N of Stanley, IdahoTue, Oct 9, 7:25 AM MDT · 2916 days ago · 3 km deep · 31 km away
18. 1.633 km W of Challis, IdahoThu, Oct 18, 5:12 AM MDT · 2907 days ago · 2 km deep · 33 km away
19. 1.65 km N of Stanley, IdahoThu, Nov 1, 7:46 AM MDT · 2893 days ago · 3 km deep · 34 km away
20. 1.76 km N of Stanley, IdahoThu, Nov 1, 7:50 AM MDT · 2893 days ago · 0 km deep · 33 km away
21. 2.19 km NNW of Stanley, IdahoSat, Nov 3, 2:19 AM MDT · 2891 days ago · 4 km deep · 30 km away
22. 2.26 km N of Stanley, IdahoSat, Nov 3, 6:38 AM MDT · 2891 days ago · 3 km deep · 33 km away

Before

1. 2.08 km N of Stanley, IdahoWed, Sep 5, 2:13 AM MDT · 2950 days ago · 10 km deep · 31 km away
2. 1.89 km N of Stanley, IdahoWed, Sep 5, 2:12 AM MDT · 2950 days ago · 3 km deep · 30 km away
3. 1.935 km ESE of Clayton, IdahoFri, Aug 31, 6:06 PM MDT · 2955 days ago · 0 km deep · 97 km away
4. 1.813 km NNE of Clayton, IdahoMon, Aug 27, 8:59 AM MDT · 2959 days ago · 3 km deep · 59 km away
5. 2.07 km N of Stanley, IdahoMon, Aug 27, 2:20 AM MDT · 2959 days ago · 13 km deep · 32 km away
6. 2.38 km S of Cascade, IdahoSun, Aug 26, 6:57 PM MDT · 2960 days ago · 6 km deep · 80 km away
7. 2.110 km W of Clayton, IdahoTue, Aug 21, 7:23 AM MDT · 2965 days ago · 13 km deep · 54 km away
8. 2.426 km NE of Challis, IdahoFri, Aug 17, 10:10 AM MDT · 2969 days ago · 5 km deep · 88 km away
9. 1.931 km NNW of Challis, IdahoWed, Aug 15, 1:09 AM MDT · 2971 days ago · 9 km deep · 54 km away
10. 1.727 km S of Clayton, IdahoTue, Aug 14, 2:28 AM MDT · 2972 days ago · 4 km deep · 79 km away
11. 2.132 km NNW of Challis, IdahoSat, Aug 11, 11:43 PM MDT · 2974 days ago · 5 km deep · 54 km away
12. 2.212 km W of Clayton, IdahoThu, Aug 9, 1:43 AM MDT · 2977 days ago · 12 km deep · 52 km away
13. 1.752 km NW of Challis, IdahoMon, Aug 6, 5:31 PM MDT · 2980 days ago · 7 km deep · 50 km away

From the USGS Earthquake Hazards Program and its partner networks, event mb80308664. Read Sat, Oct 3, 2026, 3:11 PM UTC.