Montana earthquakes

M1.6 earthquake 41 km SSE of Mammoth, Wyoming

A magnitude 1.6 earthquake struck 41 km SSE of Mammoth, Wyoming on Fri, Feb 5, 2021, 2:57 PM MST (21:57 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.4 26 km SE of Mammoth, Wyoming. This one was a foreshock.

Gardiner forecastMore in Montana

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2021-02-05 21:57:02 UTC
Depth
5.4 km (3.4 mi), shallow
Epicenter
44.653° N, 110.434° W
Region
Montana
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.5 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.27
Depth from
From location
Station coverage gap
109°
Stations used
13

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 2.21 km SSW of West Yellowstone, Montana · 2064 days ago · 10 km deep · 54 km away · felt by 1
  2. 1.958 km SSE of Mammoth, Wyoming · 2059 days ago · 2 km deep · 18 km away
  3. 1.626 km SSE of West Yellowstone, Montana · 2056 days ago · 8 km deep · 46 km away
  4. 2.022 km WNW of Hebgen Lake Estates, Montana · 2047 days ago · 10 km deep · 83 km away
  5. 1.623 km WNW of Hebgen Lake Estates, Montana · 2046 days ago · 9 km deep · 84 km away
  6. 1.613 km SE of West Yellowstone, Montana · 2043 days ago · 11 km deep · 42 km away
  7. 2.426 km SE of Mammoth, Wyoming · 2041 days ago · 8 km deep · 19 km away
  8. 1.639 km SE of Mammoth, Wyoming · 2039 days ago · 4 km deep · 4 km away
  9. 1.929 km ENE of Alta, Wyoming · 2036 days ago · 10 km deep · 87 km away
  10. 1.817 km ESE of West Yellowstone, Montana · 2035 days ago · 12 km deep · 39 km away
  11. 1.539 km SSE of Mammoth, Wyoming · 2035 days ago · 4 km deep · 3 km away
  12. 1.517 km ESE of West Yellowstone, Montana · 2035 days ago · 12 km deep · 39 km away
  13. 1.627 km SE of Mammoth, Wyoming · 2033 days ago · 9 km deep · 18 km away
  14. 2.115 km NE of West Yellowstone, Montana · 2033 days ago · 9 km deep · 43 km away
  15. 2.125 km S of Mammoth, Wyoming · 2032 days ago · 3 km deep · 22 km away
  16. 1.627 km WNW of Hebgen Lake Estates, Montana · 2031 days ago · 12 km deep · 89 km away
  17. 1.628 km WNW of Hebgen Lake Estates, Montana · 2030 days ago · 13 km deep · 89 km away
  18. 2.427 km WNW of Hebgen Lake Estates, Montana · 2030 days ago · 13 km deep · 89 km away
  19. 1.833 km E of West Yellowstone, Montana · 2027 days ago · 6 km deep · 20 km away
  20. 1.838 km S of Silver Gate, Montana · 2026 days ago · 14 km deep · 35 km away
  21. 1.822 km SSW of Mammoth, Wyoming · 2025 days ago · 4 km deep · 32 km away
  22. 1.923 km SSW of Mammoth, Wyoming · 2025 days ago · 4 km deep · 32 km away
  23. 1.641 km S of Silver Gate, Montana · 2020 days ago · 16 km deep · 35 km away
  24. 2.336 km S of Silver Gate, Montana · 2019 days ago · 13 km deep · 33 km away
  25. 1.731 km SSE of Mammoth, Wyoming · 2018 days ago · 3 km deep · 11 km away
  26. 1.626 km SSE of Cooke City, Montana · 2015 days ago · 15 km deep · 57 km away
  27. 1.830 km ESE of West Yellowstone, Montana · 2014 days ago · 5 km deep · 31 km away

Before

  1. 2.11 km SSW of West Yellowstone, Montana · 2068 days ago · 8 km deep · 54 km away
  2. 2.31 km SW of West Yellowstone, Montana · 2069 days ago · 9 km deep · 54 km away
  3. 2.435 km S of Silver Gate, Montana · 2071 days ago · 17 km deep · 36 km away
  4. 2.211 km NNW of Emigrant, Montana · 2072 days ago · 15 km deep · 95 km away
  5. 1.637 km S of Silver Gate, Montana · 2076 days ago · 14 km deep · 32 km away
  6. 2.041 km SSE of Mammoth, Wyoming · 2076 days ago · 5 km deep · 0 km away
  7. 1.529 km E of West Yellowstone, Montana · 2080 days ago · 7 km deep · 24 km away
  8. 2.031 km E of West Yellowstone, Montana · 2080 days ago · 7 km deep · 23 km away
  9. 1.830 km E of West Yellowstone, Montana · 2080 days ago · 5 km deep · 24 km away
  10. 1.731 km E of West Yellowstone, Montana · 2080 days ago · 8 km deep · 23 km away
  11. 1.58 km ENE of Hebgen Lake Estates, Montana · 2081 days ago · 7 km deep · 54 km away
  12. 1.68 km E of Hebgen Lake Estates, Montana · 2081 days ago · 6 km deep · 53 km away
  13. 1.922 km WNW of Hebgen Lake Estates, Montana · 2092 days ago · 10 km deep · 84 km away
  14. 1.77 km E of Hebgen Lake Estates, Montana · 2093 days ago · 9 km deep · 54 km away
  15. 1.522 km SSW of Mammoth, Wyoming · 2096 days ago · 3 km deep · 34 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60426037. Read Mon, Oct 5, 2026, 1:34 AM UTC.