Wyoming earthquakes

M1.5 earthquake 15 km ENE of Hoback, Wyoming

A magnitude 1.5 earthquake struck 15 km ENE of Hoback, Wyoming on Thu, Apr 20, 2017, 2:54 AM MDT (08:54 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.2 15 km ENE of Bondurant, Wyoming. This one was a foreshock.

Hoback forecastMore in Wyoming

Map

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

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The earthquake

Magnitude
1.5 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2017-04-20 08:54:36 UTC
Depth
4.6 km (2.8 mi), shallow
Epicenter
43.356° N, 110.625° W
Region
Wyoming
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 0.7 km horizontally, 1.6 km in depth
Magnitude uncertainty
±0.33
Depth from
From location
Station coverage gap
113°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 1.929 km WNW of Freedom, Idaho · 3441 days ago · 4 km deep · 72 km away
  2. 1.637 km W of Freedom, Idaho · 3441 days ago · 2 km deep · 80 km away
  3. 2.036 km W of Freedom, Idaho · 3441 days ago · 0 km deep · 79 km away
  4. 1.645 km NNW of Dubois, Wyoming · 3428 days ago · 14 km deep · 82 km away
  5. 1.836 km ESE of Kelly, Wyoming · 3426 days ago · 6 km deep · 42 km away
  6. 1.75 km WSW of Rafter J Ranch, Wyoming · 3425 days ago · 7 km deep · 20 km away
  7. 1.945 km NNW of Dubois, Wyoming · 3421 days ago · 14 km deep · 80 km away
  8. 2.119 km ESE of Jackson, Wyoming · 3406 days ago · 4 km deep · 13 km away
  9. 1.58 km ESE of Kelly, Wyoming · 3402 days ago · 7 km deep · 27 km away
  10. 1.912 km ESE of Kelly, Wyoming · 3396 days ago · 2 km deep · 30 km away
  11. 2.215 km ENE of Bondurant, Wyoming · 3394 days ago · 5 km deep · 33 km away · felt by 1

Before

  1. 1.744 km ENE of Warm River, Idaho · 3458 days ago · 7 km deep · 99 km away
  2. 1.613 km WNW of Hoback, Wyoming · 3459 days ago · 1 km deep · 25 km away
  3. 1.641 km ENE of Kelly, Wyoming · 3464 days ago · 21 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80206399. Read Thu, Oct 1, 2026, 4:34 AM UTC.