M1.8 earthquake 19 km S of Mammoth, Wyoming

Magnitude

1.8 (ml), micro

Local time

Sat, Apr 23, 2016, 11:32 PM MDT

UTC

2016-04-24 05:32:16 UTC

Depth

4.4 km (2.7 mi), shallow

Epicenter

44.805° N, 110.684° W

Region

Montana

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.1 km horizontally, 0.8 km in depth

Magnitude uncertainty

±0.49

Depth from

From location

Station coverage gap

208°, poorly surrounded by stations

Stations used

11

• Gardiner, MontanaPopulation 875. Forecast25 kmS
• Bozeman, MontanaPopulation 43,405. Forecast101 kmSSE
• Billings, MontanaPopulation 117,116. Forecast202 kmWSW
• Calgary, CanadaPopulation 1,306,784. Forecast739 kmSSE

After

1. 1.619 km S of Mammoth, WyomingSun, Apr 24, 12:07 AM MDT · 3812 days ago · 4 km deep · 1 km away
2. 1.955 km SE of West Yellowstone, MontanaSun, Apr 24, 4:46 AM MDT · 3811 days ago · 2 km deep · 55 km away
3. 2.129 km SSE of Virginia City, MontanaMon, May 2, 3:07 AM MDT · 3803 days ago · 4 km deep · 96 km away
4. 1.729 km SSE of Virginia City, MontanaMon, May 2, 3:10 AM MDT · 3803 days ago · 5 km deep · 96 km away
5. 2.130 km SSE of Virginia City, MontanaThu, May 5, 12:29 AM MDT · 3801 days ago · 4 km deep · 95 km away
6. 1.828 km SSE of Virginia City, MontanaThu, May 5, 1:36 PM MDT · 3800 days ago · 9 km deep · 96 km away
7. 2.328 km SSE of Virginia City, MontanaThu, May 5, 1:40 PM MDT · 3800 days ago · 3 km deep · 96 km away
8. 1.649 km SE of Mammoth, WyomingFri, May 13, 9:19 AM MDT · 3792 days ago · 3 km deep · 34 km away
9. 2.45 km SW of Hebgen Lake Estates, MontanaMon, May 16, 3:27 PM MDT · 3789 days ago · 12 km deep · 45 km away
10. 1.760 km ESE of West Yellowstone, MontanaWed, May 18, 6:53 PM MDT · 3787 days ago · 3 km deep · 47 km away
11. 2.510 km NE of West Yellowstone, MontanaFri, May 27, 2:02 PM MDT · 3778 days ago · 8 km deep · 27 km away
12. 1.811 km NE of West Yellowstone, MontanaFri, May 27, 2:42 PM MDT · 3778 days ago · 9 km deep · 27 km away
13. 1.640 km S of Silver Gate, MontanaTue, Jun 7, 3:14 AM MDT · 3767 days ago · 10 km deep · 57 km away
14. 3.745 km W of Hebgen Lake Estates, MontanaWed, Jun 8, 9:31 PM MDT · 3766 days ago · 10 km deep · 86 km away · felt by 5
15. 2.061 km NNE of Kelly, WyomingSun, Jun 12, 11:31 AM MDT · 3762 days ago · 11 km deep · 85 km away
16. 4.345 km W of Hebgen Lake Estates, MontanaMon, Jun 13, 6:14 AM MDT · 3761 days ago · 10 km deep · 86 km away · felt by 3
17. 2.4Idaho-Montana border regionMon, Jun 13, 6:16 AM MDT · 3761 days ago · 11 km deep · 84 km away
18. 2.043 km SE of West Yellowstone, MontanaMon, Jun 13, 3:59 PM MDT · 3761 days ago · 2 km deep · 49 km away
19. 2.529 km S of Virginia City, MontanaTue, Jun 14, 2:23 AM MDT · 3760 days ago · 3 km deep · 97 km away
20. 4.045 km W of Hebgen Lake Estates, MontanaTue, Jun 14, 8:35 AM MDT · 3760 days ago · 10 km deep · 86 km away · felt by 3
21. 1.620 km SSW of Mammoth, WyomingTue, Jun 14, 10:15 PM MDT · 3760 days ago · 2 km deep · 9 km away
22. 1.844 km W of Hebgen Lake Estates, MontanaThu, Jun 16, 9:05 AM MDT · 3758 days ago · 11 km deep · 85 km away
23. 1.647 km NW of Island Park, IdahoThu, Jun 16, 4:54 PM MDT · 3758 days ago · 10 km deep · 89 km away
24. 2.146 km ENE of Warm River, IdahoSat, Jun 18, 6:22 PM MDT · 3756 days ago · 10 km deep · 62 km away
25. 3.444 km W of Hebgen Lake Estates, MontanaSun, Jun 19, 10:35 PM MDT · 3755 days ago · 10 km deep · 85 km away
26. 1.944 km W of Hebgen Lake Estates, MontanaMon, Jun 20, 5:30 PM MDT · 3754 days ago · 12 km deep · 84 km away
27. 1.642 km W of Hebgen Lake Estates, MontanaMon, Jun 20, 5:58 PM MDT · 3754 days ago · 11 km deep · 83 km away

Before

1. 2.020 km S of Mammoth, WyomingSat, Apr 23, 9:48 PM MDT · 3812 days ago · 4 km deep · 2 km away
2. 1.820 km S of Mammoth, WyomingSat, Apr 23, 8:53 PM MDT · 3812 days ago · 4 km deep · 2 km away
3. 2.129 km SSE of Virginia City, MontanaSat, Apr 23, 7:49 AM MDT · 3812 days ago · 3 km deep · 96 km away
4. 1.929 km SSE of Virginia City, MontanaSat, Apr 23, 7:07 AM MDT · 3812 days ago · 4 km deep · 96 km away
5. 1.613 km SW of Springdale, MontanaThu, Apr 21, 11:19 AM MDT · 3814 days ago · 11 km deep · 99 km away
6. 1.651 km SSE of Mammoth, WyomingWed, Apr 20, 4:54 PM MDT · 3815 days ago · 3 km deep · 35 km away
7. 1.750 km SSE of Mammoth, WyomingWed, Apr 20, 9:59 AM MDT · 3815 days ago · 2 km deep · 34 km away
8. 2.529 km SSE of Virginia City, MontanaTue, Apr 19, 7:46 PM MDT · 3816 days ago · 3 km deep · 96 km away
9. 2.129 km SSE of Virginia City, MontanaTue, Apr 19, 2:00 PM MDT · 3816 days ago · 8 km deep · 96 km away
10. 2.329 km SSE of Virginia City, MontanaTue, Apr 19, 7:43 AM MDT · 3816 days ago · 6 km deep · 96 km away
11. 2.029 km SSE of Virginia City, MontanaTue, Apr 19, 1:41 AM MDT · 3816 days ago · 3 km deep · 96 km away
12. 1.639 km SSE of Mammoth, WyomingMon, Apr 18, 3:39 PM MDT · 3817 days ago · 5 km deep · 23 km away
13. 2.729 km SSE of Virginia City, MontanaMon, Apr 18, 5:08 AM MDT · 3817 days ago · 6 km deep · 97 km away
14. 2.929 km SSE of Virginia City, MontanaMon, Apr 18, 1:56 AM MDT · 3817 days ago · 5 km deep · 97 km away
15. 3.028 km SSE of Virginia City, MontanaSun, Apr 17, 10:46 PM MDT · 3818 days ago · 3 km deep · 97 km away
16. 2.329 km SSE of Virginia City, MontanaSun, Apr 17, 10:31 PM MDT · 3818 days ago · 8 km deep · 96 km away
17. 2.629 km SSE of Virginia City, MontanaSun, Apr 17, 10:16 PM MDT · 3818 days ago · 2 km deep · 96 km away
18. 3.229 km SSE of Virginia City, MontanaSun, Apr 17, 7:58 PM MDT · 3818 days ago · 2 km deep · 97 km away · felt by 1
19. 1.561 km ESE of West Yellowstone, MontanaSun, Apr 17, 6:53 AM MDT · 3818 days ago · 7 km deep · 50 km away
20. 1.729 km SSE of Virginia City, MontanaFri, Apr 15, 11:26 AM MDT · 3820 days ago · 5 km deep · 97 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu60146362. Read Wed, Sep 30, 2026, 6:01 PM UTC.