M1.7 earthquake 23 km SE of Mammoth, Wyoming

Magnitude

1.7 (ML, local (Richter)), micro

Magnitude from

University of Utah Seismograph Stations

Local time

Mon, Dec 22, 2014, 5:37 PM MST

UTC

2014-12-23 00:37:49 UTC

Depth

4.7 km (2.9 mi), shallow

Epicenter

44.802° N, 110.529° 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

±0.34

Depth from

FROM_LOCATION

Station coverage gap

143°

Stations used

10

• Gardiner, MontanaPopulation 875. Forecast29 kmSSE
• Bozeman, MontanaPopulation 43,405. Forecast105 kmSSE
• Billings, MontanaPopulation 117,116. Forecast192 kmSW
• Calgary, CanadaPopulation 1,306,784. Forecast743 kmSSE

After

1. 1.824 km SE of Mammoth, WyomingWed, Dec 24, 2:48 AM MST · 4301 days ago · 6 km deep · 0 km away
2. 1.621 km ENE of Hebgen Lake Estates, MontanaMon, Dec 29, 6:59 AM MST · 4295 days ago · 8 km deep · 31 km away
3. 2.127 km W of Hebgen Lake Estates, MontanaMon, Dec 29, 10:15 PM MST · 4295 days ago · 11 km deep · 79 km away
4. 1.727 km SSE of Mammoth, WyomingWed, Dec 31, 9:40 AM MST · 4293 days ago · 4 km deep · 11 km away
5. 2.127 km W of Hebgen Lake Estates, MontanaWed, Dec 31, 9:51 PM MST · 4293 days ago · 12 km deep · 80 km away
6. 1.529 km ESE of West Yellowstone, MontanaFri, Jan 2, 4:52 PM MST · 4291 days ago · 10 km deep · 29 km away
7. 1.524 km S of Ennis, MontanaSat, Jan 3, 1:27 PM MST · 4290 days ago · 3 km deep · 99 km away
8. 1.746 km ESE of West Yellowstone, MontanaThu, Jan 8, 1:42 PM MST · 4285 days ago · 4 km deep · 41 km away
9. 1.67 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 7:38 PM MST · 4273 days ago · 12 km deep · 46 km away
10. 1.57 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 7:40 PM MST · 4273 days ago · 12 km deep · 45 km away
11. 1.67 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 7:48 PM MST · 4273 days ago · 12 km deep · 46 km away
12. 1.67 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 7:56 PM MST · 4273 days ago · 12 km deep · 45 km away
13. 1.77 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 8:01 PM MST · 4273 days ago · 12 km deep · 45 km away
14. 1.97 km ESE of Hebgen Lake Estates, MontanaTue, Jan 20, 9:03 PM MST · 4273 days ago · 12 km deep · 46 km away
15. 1.67 km E of Hebgen Lake Estates, MontanaTue, Jan 20, 9:19 PM MST · 4273 days ago · 12 km deep · 45 km away
16. 1.648 km NE of Alta, WyomingThu, Jan 22, 11:09 PM MST · 4271 days ago · 7 km deep · 80 km away
17. 1.649 km SSE of Mammoth, WyomingSat, Jan 31, 2:02 AM MST · 4263 days ago · 4 km deep · 26 km away
18. 1.630 km SE of Mammoth, WyomingSun, Feb 1, 1:53 PM MST · 4261 days ago · 4 km deep · 7 km away
19. 2.49 km E of Hebgen Lake Estates, MontanaSun, Feb 1, 10:17 PM MST · 4261 days ago · 12 km deep · 43 km away
20. 1.68 km ESE of Hebgen Lake Estates, MontanaThu, Feb 5, 2:41 PM MST · 4257 days ago · 11 km deep · 45 km away
21. 3.023 km WNW of Hebgen Lake Estates, MontanaTue, Feb 10, 6:52 PM MST · 4252 days ago · 6 km deep · 74 km away · felt by 1
22. 1.93 km SW of Hebgen Lake Estates, MontanaSun, Feb 15, 2:14 PM MST · 4247 days ago · 11 km deep · 56 km away
23. 2.314 km ENE of Hebgen Lake Estates, MontanaThu, Feb 19, 10:16 AM MST · 4243 days ago · 6 km deep · 38 km away
24. 1.832 km ESE of West Yellowstone, MontanaFri, Feb 20, 7:09 AM MST · 4242 days ago · 6 km deep · 30 km away
25. 2.414 km ENE of Hebgen Lake Estates, MontanaFri, Feb 20, 12:15 PM MST · 4242 days ago · 5 km deep · 38 km away
26. 2.014 km ENE of Hebgen Lake Estates, MontanaFri, Feb 20, 12:30 PM MST · 4242 days ago · 5 km deep · 38 km away

Before

1. 1.849 km ESE of West Yellowstone, MontanaSat, Dec 20, 12:22 AM MST · 4305 days ago · 2 km deep · 37 km away
2. 2.052 km SSE of Mammoth, WyomingThu, Dec 18, 3:28 PM MST · 4306 days ago · 4 km deep · 29 km away
3. 2.228 km WNW of Hebgen Lake Estates, MontanaThu, Dec 18, 1:09 PM MST · 4306 days ago · 6 km deep · 80 km away
4. 2.228 km WNW of Hebgen Lake Estates, MontanaThu, Dec 18, 12:31 PM MST · 4306 days ago · 6 km deep · 80 km away
5. 2.223 km W of Hebgen Lake Estates, MontanaWed, Dec 17, 8:46 PM MST · 4307 days ago · 9 km deep · 76 km away
6. 1.927 km W of Hebgen Lake Estates, MontanaWed, Dec 17, 8:46 PM MST · 4307 days ago · 0 km deep · 80 km away
7. 1.927 km W of Hebgen Lake Estates, MontanaTue, Dec 16, 6:16 AM MST · 4308 days ago · 12 km deep · 79 km away
8. 2.447 km ENE of Warm River, IdahoMon, Dec 15, 11:02 AM MST · 4309 days ago · 4 km deep · 64 km away
9. 1.927 km WNW of Hebgen Lake Estates, MontanaSun, Dec 14, 11:07 PM MST · 4310 days ago · 6 km deep · 79 km away
10. 1.632 km SE of West Yellowstone, MontanaWed, Dec 10, 5:24 PM MST · 4314 days ago · 1 km deep · 45 km away
11. 1.718 km SSE of West Yellowstone, MontanaWed, Dec 10, 5:22 PM MST · 4314 days ago · 5 km deep · 47 km away
12. 2.337 km SSE of Mammoth, WyomingMon, Dec 8, 8:30 AM MST · 4316 days ago · 6 km deep · 15 km away
13. 1.654 km NE of Alta, WyomingSun, Dec 7, 11:32 PM MST · 4317 days ago · 11 km deep · 75 km away
14. 2.130 km ESE of West Yellowstone, MontanaFri, Dec 5, 5:02 PM MST · 4319 days ago · 5 km deep · 30 km away
15. 1.835 km E of West Yellowstone, MontanaFri, Dec 5, 11:06 AM MST · 4319 days ago · 5 km deep · 22 km away
16. 1.829 km ESE of Mammoth, WyomingThu, Dec 4, 4:25 AM MST · 4320 days ago · 13 km deep · 15 km away
17. 2.124 km SE of Mammoth, WyomingThu, Dec 4, 3:24 AM MST · 4321 days ago · 6 km deep · 1 km away
18. 1.624 km SE of Mammoth, WyomingThu, Dec 4, 1:01 AM MST · 4321 days ago · 4 km deep · 1 km away
19. 2.045 km ENE of Warm River, IdahoWed, Dec 3, 12:51 PM MST · 4321 days ago · 5 km deep · 66 km away
20. 1.546 km ENE of Warm River, IdahoWed, Dec 3, 10:33 AM MST · 4321 days ago · 3 km deep · 65 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu60096437. Read Fri, Oct 2, 2026, 10:36 PM UTC.