Montana earthquakes

M2.3 earthquake 20 km SSE of Mammoth, Wyoming

A magnitude 2.3 earthquake struck 20 km SSE of Mammoth, Wyoming on Sat, Mar 26, 2016, 2:28 AM MDT (08:28 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.4 5 km SW of Hebgen Lake Estates, Montana. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.3 (ML, local (Richter)), micro
Magnitude from
University of Utah Seismograph Stations
Local time
UTC
2016-03-26 08:28:34 UTC
Depth
10.2 km (6.3 mi), shallow
Epicenter
44.821° N, 110.565° 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 0.6 km horizontally, 1.7 km in depth
Magnitude uncertainty
±0.21
Depth from
From location
Station coverage gap
85°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.646 km SSE of Mammoth, Wyoming · 3842 days ago · 5 km deep · 26 km away
  2. 1.733 km SE of Virginia City, Montana · 3842 days ago · 9 km deep · 93 km away
  3. 2.132 km SSE of Virginia City, Montana · 3842 days ago · 11 km deep · 94 km away
  4. 2.242 km SSE of Mammoth, Wyoming · 3839 days ago · 4 km deep · 22 km away
  5. 1.61 km NNW of Hebgen Lake Estates, Montana · 3829 days ago · 15 km deep · 50 km away
  6. 1.624 km SSW of Mammoth, Wyoming · 3828 days ago · 4 km deep · 21 km away
  7. 1.561 km ESE of West Yellowstone, Montana · 3822 days ago · 7 km deep · 48 km away
  8. 1.639 km SSE of Mammoth, Wyoming · 3820 days ago · 5 km deep · 19 km away
  9. 1.750 km SSE of Mammoth, Wyoming · 3818 days ago · 2 km deep · 30 km away
  10. 1.651 km SSE of Mammoth, Wyoming · 3818 days ago · 3 km deep · 31 km away
  11. 1.613 km SW of Springdale, Montana · 3817 days ago · 11 km deep · 95 km away
  12. 1.820 km S of Mammoth, Wyoming · 3815 days ago · 4 km deep · 11 km away
  13. 2.020 km S of Mammoth, Wyoming · 3815 days ago · 4 km deep · 11 km away
  14. 1.819 km S of Mammoth, Wyoming · 3815 days ago · 4 km deep · 10 km away
  15. 1.619 km S of Mammoth, Wyoming · 3815 days ago · 4 km deep · 10 km away
  16. 1.955 km SE of West Yellowstone, Montana · 3815 days ago · 2 km deep · 56 km away
  17. 1.649 km SE of Mammoth, Wyoming · 3795 days ago · 3 km deep · 29 km away
  18. 2.45 km SW of Hebgen Lake Estates, Montana · 3792 days ago · 12 km deep · 54 km away
  19. 1.760 km ESE of West Yellowstone, Montana · 3790 days ago · 3 km deep · 46 km away

Before

  1. 1.920 km SSE of Mammoth, Wyoming · 3844 days ago · 7 km deep · 0 km away
  2. 1.721 km SSE of Mammoth, Wyoming · 3845 days ago · 5 km deep · 1 km away
  3. 1.517 km SE of West Yellowstone, Montana · 3845 days ago · 10 km deep · 44 km away
  4. 1.816 km SE of West Yellowstone, Montana · 3845 days ago · 8 km deep · 44 km away
  5. 1.617 km SE of West Yellowstone, Montana · 3845 days ago · 8 km deep · 44 km away
  6. 1.937 km S of Silver Gate, Montana · 3848 days ago · 13 km deep · 48 km away
  7. 2.021 km ENE of Hebgen Lake Estates, Montana · 3851 days ago · 7 km deep · 28 km away
  8. 1.937 km S of Silver Gate, Montana · 3852 days ago · 13 km deep · 48 km away
  9. 1.641 km SSE of Mammoth, Wyoming · 3856 days ago · 2 km deep · 21 km away
  10. 1.927 km S of Mammoth, Wyoming · 3857 days ago · 5 km deep · 12 km away
  11. 1.743 km ESE of West Yellowstone, Montana · 3870 days ago · 2 km deep · 33 km away
  12. 2.246 km NW of Island Park, Idaho · 3874 days ago · 10 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60143702. Read Sun, Oct 4, 2026, 1:15 AM UTC.