Montana earthquakes

M2.2 earthquake 51 km SE of Mammoth, Wyoming

A magnitude 2.2 earthquake struck 51 km SE of Mammoth, Wyoming on Sun, Apr 26, 2015, 10:03 PM MDT (04:03 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.0 50 km SSE 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.

Open the live map with earthquakes

The earthquake

Magnitude
2.2 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2015-04-27 04:03:45 UTC
Depth
5.4 km (3.4 mi), shallow
Epicenter
44.603° N, 110.324° 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 0.3 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
91°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.625 km SE of Mammoth, Wyoming · 4177 days ago · 6 km deep · 26 km away
  2. 1.5Idaho-Montana border region · 4171 days ago · 8 km deep · 67 km away
  3. 1.74 km SE of Hebgen Lake Estates, Montana · 4171 days ago · 10 km deep · 68 km away
  4. 2.14 km SE of Hebgen Lake Estates, Montana · 4170 days ago · 9 km deep · 67 km away
  5. 2.04 km SE of Hebgen Lake Estates, Montana · 4167 days ago · 10 km deep · 68 km away
  6. 1.635 km E of West Yellowstone, Montana · 4165 days ago · 5 km deep · 27 km away
  7. 1.524 km SSE of West Yellowstone, Montana · 4163 days ago · 6 km deep · 52 km away
  8. 1.74 km SE of Hebgen Lake Estates, Montana · 4163 days ago · 10 km deep · 68 km away
  9. 3.050 km SSE of Mammoth, Wyoming · 4157 days ago · 4 km deep · 4 km away · felt by 8
  10. 2.250 km SSE of Mammoth, Wyoming · 4157 days ago · 5 km deep · 5 km away
  11. 1.641 km SE of West Yellowstone, Montana · 4144 days ago · 6 km deep · 47 km away
  12. 1.713 km SE of West Yellowstone, Montana · 4143 days ago · 14 km deep · 53 km away
  13. 1.519 km NE of West Yellowstone, Montana · 4134 days ago · 8 km deep · 49 km away
  14. 1.624 km SSE of West Yellowstone, Montana · 4132 days ago · 5 km deep · 54 km away
  15. 2.448 km SE of West Yellowstone, Montana · 4131 days ago · 4 km deep · 38 km away
  16. 1.848 km SE of West Yellowstone, Montana · 4131 days ago · 4 km deep · 38 km away
  17. 1.548 km SE of West Yellowstone, Montana · 4131 days ago · 4 km deep · 38 km away
  18. 1.6Wyoming · 4125 days ago · 5 km deep · 26 km away
  19. 1.935 km E of West Yellowstone, Montana · 4125 days ago · 2 km deep · 27 km away
  20. 1.8Wyoming · 4124 days ago · 2 km deep · 31 km away
  21. 2.529 km E of West Yellowstone, Montana · 4123 days ago · 8 km deep · 33 km away
  22. 1.720 km SSE of Mammoth, Wyoming · 4122 days ago · 3 km deep · 32 km away
  23. 1.738 km SSE of Mammoth, Wyoming · 4120 days ago · 5 km deep · 14 km away
  24. 1.925 km SE of Mammoth, Wyoming · 4119 days ago · 5 km deep · 26 km away

Before

  1. 2.029 km ESE of West Yellowstone, Montana · 4187 days ago · 5 km deep · 35 km away
  2. 2.125 km ESE of West Yellowstone, Montana · 4188 days ago · 6 km deep · 40 km away
  3. 1.545 km ENE of Warm River, Idaho · 4192 days ago · 5 km deep · 55 km away
  4. 2.245 km ENE of Warm River, Idaho · 4192 days ago · 7 km deep · 54 km away
  5. 1.65 km ESE of Hebgen Lake Estates, Montana · 4196 days ago · 12 km deep · 66 km away
  6. 1.730 km NNE of Alta, Wyoming · 4202 days ago · 10 km deep · 79 km away
  7. 1.825 km WSW of Corwin Springs, Montana · 4204 days ago · 15 km deep · 75 km away
  8. 1.949 km ESE of West Yellowstone, Montana · 4207 days ago · 2 km deep · 16 km away

Earthquakes todayMontana earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60109032. Read Sun, Oct 4, 2026, 11:48 PM UTC.