Wyoming earthquakes

M3.4 earthquake 48 km ENE of Warm River, Idaho

A magnitude 3.4 earthquake struck 48 km ENE of Warm River, Idaho on Thu, Mar 12, 1981, 8:55 AM MST (15:55 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M3.8 6 km ESE of Island Park, Idaho. 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
3.4 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1981-03-12 15:55:41 UTC
Depth
0.8 km (0.5 mi), shallow
Epicenter
44.280° N, 110.759° W
Region
Wyoming
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

FELT (III) AT OLD FAITHFUL AND GRANT VILLAGE. MAG. 3.4 ML.

From the USGS event page for usp0001cny. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

No one has reported feeling this quake to the USGS.

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 3.149 km ENE of Warm River, Idaho · 16639 days ago · 1 km deep · 2 km away
  2. 3.86 km ESE of Island Park, Idaho · 16605 days ago · 5 km deep · 44 km away
  3. 3.711 km E of South Park, Wyoming · 16584 days ago · 5 km deep · 97 km away

Before

  1. 2.549 km ENE of Warm River, Idaho · 16639 days ago · 1 km deep · 1 km away
  2. 2.648 km ENE of Warm River, Idaho · 16639 days ago · 1 km deep · 2 km away
  3. 3.048 km ENE of Warm River, Idaho · 16639 days ago · 2 km deep · 0 km away
  4. 2.648 km ENE of Warm River, Idaho · 16639 days ago · 0 km deep · 1 km away
  5. 2.649 km ENE of Warm River, Idaho · 16639 days ago · 4 km deep · 1 km away
  6. 2.549 km SE of West Yellowstone, Montana · 16639 days ago · 5 km deep · 2 km away
  7. 2.548 km SSE of West Yellowstone, Montana · 16639 days ago · 4 km deep · 2 km away
  8. 3.148 km ENE of Warm River, Idaho · 16639 days ago · 2 km deep · 1 km away
  9. 3.848 km ENE of Warm River, Idaho · 16639 days ago · 1 km deep · 1 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001cny. Read Thu, Oct 1, 2026, 10:30 AM UTC.