M1.6 earthquake 49 km SSE of Mammoth, Wyoming

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

University of Utah Seismograph Stations

Local time

Sat, Jan 31, 2015, 2:02 AM MST

UTC

2015-01-31 09:02:32 UTC

Depth

3.7 km (2.3 mi), shallow

Epicenter

44.604° N, 110.364° W

Region

Montana

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.7 km horizontally, 0.7 km in depth

Magnitude uncertainty

±0.13

Depth from

FROM_LOCATION

Station coverage gap

185°, poorly surrounded by stations

Stations used

9

• Gardiner, MontanaPopulation 875. Forecast55 kmSSE
• Jackson, WyomingPopulation 10,523. Forecast129 kmNNE
• Billings, MontanaPopulation 117,116. Forecast196 kmSW
• Calgary, CanadaPopulation 1,306,784. Forecast768 kmSSE

After

1. 1.630 km SE of Mammoth, WyomingSun, Feb 1, 1:53 PM MST · 4261 days ago · 4 km deep · 20 km away
2. 2.49 km E of Hebgen Lake Estates, MontanaSun, Feb 1, 10:17 PM MST · 4261 days ago · 12 km deep · 59 km away
3. 1.68 km ESE of Hebgen Lake Estates, MontanaThu, Feb 5, 2:41 PM MST · 4257 days ago · 11 km deep · 59 km away
4. 3.023 km WNW of Hebgen Lake Estates, MontanaTue, Feb 10, 6:52 PM MST · 4252 days ago · 6 km deep · 91 km away · felt by 1
5. 1.93 km SW of Hebgen Lake Estates, MontanaSun, Feb 15, 2:14 PM MST · 4247 days ago · 11 km deep · 70 km away
6. 2.314 km ENE of Hebgen Lake Estates, MontanaThu, Feb 19, 10:16 AM MST · 4243 days ago · 6 km deep · 56 km away
7. 1.832 km ESE of West Yellowstone, MontanaFri, Feb 20, 7:09 AM MST · 4243 days ago · 6 km deep · 29 km away
8. 2.414 km ENE of Hebgen Lake Estates, MontanaFri, Feb 20, 12:15 PM MST · 4242 days ago · 5 km deep · 56 km away
9. 2.014 km ENE of Hebgen Lake Estates, MontanaFri, Feb 20, 12:30 PM MST · 4242 days ago · 5 km deep · 56 km away
10. 1.94 km SE of Hebgen Lake Estates, MontanaSat, Feb 28, 7:11 AM MST · 4235 days ago · 9 km deep · 64 km away
11. 1.930 km ESE of West Yellowstone, MontanaMon, Mar 2, 7:11 PM MST · 4232 days ago · 7 km deep · 31 km away
12. 2.023 km WNW of Hebgen Lake Estates, MontanaWed, Mar 4, 2:07 AM MST · 4231 days ago · 5 km deep · 91 km away
13. 1.941 km SSE of Mammoth, WyomingWed, Mar 4, 8:45 PM MST · 4230 days ago · 4 km deep · 8 km away
14. 1.635 km SSE of West Yellowstone, MontanaSat, Mar 7, 6:16 AM MST · 4228 days ago · 2 km deep · 50 km away
15. 1.734 km SE of West Yellowstone, MontanaSat, Mar 7, 6:17 AM MST · 4228 days ago · 2 km deep · 44 km away
16. 1.51 km SW of Hebgen Lake Estates, MontanaTue, Mar 10, 7:25 PM MDT · 4224 days ago · 12 km deep · 69 km away
17. 1.953 km SSE of Mammoth, WyomingFri, Mar 13, 8:00 PM MDT · 4221 days ago · 4 km deep · 5 km away
18. 1.630 km NNE of Alta, WyomingSun, Mar 15, 8:30 AM MDT · 4220 days ago · 8 km deep · 78 km away
19. 1.830 km SSE of Mammoth, WyomingFri, Mar 20, 7:39 AM MDT · 4215 days ago · 5 km deep · 19 km away
20. 1.655 km SE of West Yellowstone, MontanaSat, Mar 21, 10:34 AM MDT · 4213 days ago · 4 km deep · 38 km away
21. 2.017 km ENE of Hebgen Lake Estates, MontanaSun, Mar 22, 12:39 AM MDT · 4213 days ago · 8 km deep · 54 km away
22. 2.029 km SSE of Mammoth, WyomingSun, Mar 22, 10:19 PM MDT · 4212 days ago · 4 km deep · 21 km away
23. 2.227 km SSE of Mammoth, WyomingMon, Mar 23, 1:25 AM MDT · 4212 days ago · 7 km deep · 22 km away
24. 1.628 km SSE of Mammoth, WyomingMon, Mar 23, 8:03 AM MDT · 4212 days ago · 7 km deep · 21 km away
25. 1.949 km ESE of West Yellowstone, MontanaSun, Mar 29, 8:07 AM MDT · 4206 days ago · 2 km deep · 13 km away

Before

1. 1.648 km NE of Alta, WyomingThu, Jan 22, 11:09 PM MST · 4271 days ago · 7 km deep · 62 km away
2. 1.710 km ENE of Tetonia, IdahoWed, Jan 21, 1:46 AM MST · 4273 days ago · 5 km deep · 98 km away
3. 1.67 km E of Hebgen Lake Estates, MontanaTue, Jan 20, 9:19 PM MST · 4273 days ago · 12 km deep · 61 km away
4. 1.97 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 9:03 PM MST · 4273 days ago · 12 km deep · 61 km away
5. 1.77 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 8:01 PM MST · 4273 days ago · 12 km deep · 60 km away
6. 1.67 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 7:56 PM MST · 4273 days ago · 12 km deep · 60 km away
7. 1.67 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 7:48 PM MST · 4273 days ago · 12 km deep · 60 km away
8. 1.57 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 7:40 PM MST · 4273 days ago · 12 km deep · 60 km away
9. 1.67 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 7:38 PM MST · 4273 days ago · 12 km deep · 61 km away
10. 2.011 km NE of Tetonia, IdahoSat, Jan 17, 1:29 PM MST · 4276 days ago · 7 km deep · 98 km away
11. 1.746 km ESE of West Yellowstone, MontanaThu, Jan 8, 1:42 PM MST · 4285 days ago · 4 km deep · 27 km away
12. 1.529 km ESE of West Yellowstone, MontanaFri, Jan 2, 4:52 PM MST · 4291 days ago · 10 km deep · 30 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu60007810. Read Sat, Oct 3, 2026, 2:43 AM UTC.