Montana earthquakes

M1.9 earthquake 41 km SSE of Mammoth, Wyoming

A magnitude 1.9 earthquake struck 41 km SSE of Mammoth, Wyoming on Wed, Mar 4, 2015, 8:45 PM MST (03:45 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M2.2 51 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
1.9 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2015-03-05 03:45:51 UTC
Depth
4.3 km (2.7 mi), shallow
Epicenter
44.652° N, 110.432° 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 0.4 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.35
Depth from
FROM_LOCATION
Station coverage gap
128°
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: 21 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.635 km SSE of West Yellowstone, Montana · 4228 days ago · 2 km deep · 49 km away
  2. 1.734 km SE of West Yellowstone, Montana · 4228 days ago · 2 km deep · 42 km away
  3. 1.51 km SW of Hebgen Lake Estates, Montana · 4225 days ago · 12 km deep · 62 km away
  4. 1.953 km SSE of Mammoth, Wyoming · 4222 days ago · 4 km deep · 12 km away
  5. 1.630 km NNE of Alta, Wyoming · 4220 days ago · 8 km deep · 80 km away
  6. 1.830 km SSE of Mammoth, Wyoming · 4215 days ago · 5 km deep · 12 km away
  7. 1.655 km SE of West Yellowstone, Montana · 4214 days ago · 4 km deep · 40 km away
  8. 2.017 km ENE of Hebgen Lake Estates, Montana · 4214 days ago · 8 km deep · 47 km away
  9. 2.029 km SSE of Mammoth, Wyoming · 4213 days ago · 4 km deep · 13 km away
  10. 2.227 km SSE of Mammoth, Wyoming · 4212 days ago · 7 km deep · 14 km away
  11. 1.628 km SSE of Mammoth, Wyoming · 4212 days ago · 7 km deep · 14 km away
  12. 1.949 km ESE of West Yellowstone, Montana · 4206 days ago · 2 km deep · 14 km away
  13. 1.825 km WSW of Corwin Springs, Montana · 4202 days ago · 15 km deep · 64 km away
  14. 1.730 km NNE of Alta, Wyoming · 4201 days ago · 10 km deep · 80 km away
  15. 1.65 km ESE of Hebgen Lake Estates, Montana · 4195 days ago · 12 km deep · 56 km away
  16. 2.245 km ENE of Warm River, Idaho · 4191 days ago · 7 km deep · 54 km away
  17. 1.545 km ENE of Warm River, Idaho · 4191 days ago · 5 km deep · 54 km away
  18. 2.125 km ESE of West Yellowstone, Montana · 4187 days ago · 6 km deep · 33 km away
  19. 2.029 km ESE of West Yellowstone, Montana · 4186 days ago · 5 km deep · 28 km away
  20. 2.251 km SE of Mammoth, Wyoming · 4178 days ago · 5 km deep · 10 km away
  21. 1.625 km SE of Mammoth, Wyoming · 4176 days ago · 6 km deep · 17 km away

Before

  1. 2.023 km WNW of Hebgen Lake Estates, Montana · 4231 days ago · 5 km deep · 84 km away
  2. 1.930 km ESE of West Yellowstone, Montana · 4233 days ago · 7 km deep · 27 km away
  3. 1.94 km SE of Hebgen Lake Estates, Montana · 4235 days ago · 9 km deep · 58 km away
  4. 2.014 km ENE of Hebgen Lake Estates, Montana · 4243 days ago · 5 km deep · 49 km away
  5. 2.414 km ENE of Hebgen Lake Estates, Montana · 4243 days ago · 5 km deep · 49 km away
  6. 1.832 km ESE of West Yellowstone, Montana · 4243 days ago · 6 km deep · 25 km away
  7. 2.314 km ENE of Hebgen Lake Estates, Montana · 4244 days ago · 6 km deep · 49 km away
  8. 1.93 km SW of Hebgen Lake Estates, Montana · 4248 days ago · 11 km deep · 64 km away
  9. 3.023 km WNW of Hebgen Lake Estates, Montana · 4253 days ago · 6 km deep · 84 km away · felt by 1
  10. 1.68 km ESE of Hebgen Lake Estates, Montana · 4258 days ago · 11 km deep · 53 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60103557. Read Sat, Oct 3, 2026, 6:50 PM UTC.