Montana earthquakes

M1.6 earthquake 25 km SSE of Mammoth, Wyoming

A magnitude 1.6 earthquake struck 25 km SSE of Mammoth, Wyoming on Thu, Apr 8, 2021, 7:24 AM MDT (13:24 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.7 36 km S of Silver Gate, Montana. This one was a foreshock.

Gardiner forecastMore in Montana

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
1.6 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2021-04-08 13:24:15 UTC
Depth
3.1 km (1.9 mi), shallow
Epicenter
44.757° N, 110.622° 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 0.8 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.49
Depth from
From location
Station coverage gap
137°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 19 in the 30 days before it.

After

  1. 2.228 km SE of Mammoth, Wyoming · 1992 days ago · 5 km deep · 11 km away
  2. 2.341 km NW of Island Park, Idaho · 1988 days ago · 15 km deep · 90 km away
  3. 2.165 km NNE of Kelly, Wyoming · 1987 days ago · 10 km deep · 68 km away
  4. 2.523 km NE of West Yellowstone, Montana · 1986 days ago · 11 km deep · 22 km away
  5. 1.518 km ENE of West Yellowstone, Montana · 1977 days ago · 8 km deep · 22 km away
  6. 1.621 km NE of West Yellowstone, Montana · 1970 days ago · 5 km deep · 22 km away
  7. 1.835 km SSW of Silver Gate, Montana · 1969 days ago · 9 km deep · 43 km away
  8. 1.748 km ESE of West Yellowstone, Montana · 1967 days ago · 2 km deep · 32 km away
  9. 2.227 km SSE of Mammoth, Wyoming · 1965 days ago · 5 km deep · 2 km away
  10. 2.128 km S of Mammoth, Wyoming · 1965 days ago · 6 km deep · 4 km away
  11. 2.028 km S of Mammoth, Wyoming · 1965 days ago · 6 km deep · 4 km away
  12. 1.856 km SE of West Yellowstone, Montana · 1960 days ago · 4 km deep · 49 km away
  13. 1.555 km SE of West Yellowstone, Montana · 1960 days ago · 5 km deep · 48 km away
  14. 2.355 km SE of West Yellowstone, Montana · 1960 days ago · 4 km deep · 49 km away
  15. 2.055 km SE of West Yellowstone, Montana · 1960 days ago · 4 km deep · 49 km away
  16. 2.556 km SE of West Yellowstone, Montana · 1960 days ago · 5 km deep · 50 km away
  17. 1.757 km ESE of West Yellowstone, Montana · 1953 days ago · 3 km deep · 35 km away
  18. 1.525 km SE of West Yellowstone, Montana · 1953 days ago · 9 km deep · 37 km away
  19. 1.535 km NNE of Alta, Wyoming · 1952 days ago · 10 km deep · 83 km away
  20. 2.736 km S of Silver Gate, Montana · 1951 days ago · 15 km deep · 49 km away
  21. 1.635 km S of Silver Gate, Montana · 1950 days ago · 14 km deep · 48 km away
  22. 1.550 km SSE of Mammoth, Wyoming · 1950 days ago · 2 km deep · 27 km away
  23. 1.7Wyoming · 1946 days ago · 5 km deep · 22 km away

Before

  1. 2.029 km SSE of Virginia City, Montana · 2006 days ago · 3 km deep · 98 km away
  2. 1.830 km ESE of West Yellowstone, Montana · 2013 days ago · 5 km deep · 30 km away
  3. 1.626 km SSE of Cooke City, Montana · 2014 days ago · 15 km deep · 69 km away
  4. 1.731 km SSE of Mammoth, Wyoming · 2018 days ago · 3 km deep · 11 km away
  5. 2.336 km S of Silver Gate, Montana · 2019 days ago · 13 km deep · 48 km away
  6. 1.641 km S of Silver Gate, Montana · 2019 days ago · 16 km deep · 51 km away
  7. 1.923 km SSW of Mammoth, Wyoming · 2025 days ago · 4 km deep · 14 km away
  8. 1.822 km SSW of Mammoth, Wyoming · 2025 days ago · 4 km deep · 14 km away
  9. 1.838 km S of Silver Gate, Montana · 2026 days ago · 14 km deep · 51 km away
  10. 1.833 km E of West Yellowstone, Montana · 2027 days ago · 6 km deep · 15 km away
  11. 2.427 km WNW of Hebgen Lake Estates, Montana · 2029 days ago · 13 km deep · 72 km away
  12. 1.628 km WNW of Hebgen Lake Estates, Montana · 2030 days ago · 13 km deep · 73 km away
  13. 1.627 km WNW of Hebgen Lake Estates, Montana · 2031 days ago · 12 km deep · 72 km away
  14. 2.125 km S of Mammoth, Wyoming · 2032 days ago · 3 km deep · 4 km away
  15. 2.115 km NE of West Yellowstone, Montana · 2033 days ago · 9 km deep · 27 km away
  16. 1.627 km SE of Mammoth, Wyoming · 2033 days ago · 9 km deep · 15 km away
  17. 1.517 km ESE of West Yellowstone, Montana · 2035 days ago · 12 km deep · 30 km away
  18. 1.539 km SSE of Mammoth, Wyoming · 2035 days ago · 4 km deep · 16 km away
  19. 1.817 km ESE of West Yellowstone, Montana · 2035 days ago · 12 km deep · 30 km away

Earthquakes todayMontana earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60432217. Read Sun, Oct 4, 2026, 7:58 PM UTC.