M2.0 earthquake 4 km WSW of Preston, Idaho
A magnitude 2.0 earthquake struck 4 km WSW of Preston, Idaho on Sun, Sep 6, 1981, 5:33 PM MDT (23:33 UTC), 3 km (2 mi) below the surface.
A larger quake followed: M3.7 18 km ENE of Georgetown, Idaho. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.0 (Md, duration), micro
- Magnitude from
- University of Utah Seismograph Stations
- Local time
- UTC
- 1981-09-06 23:33:24 UTC
- Depth
- 3.0 km (1.9 mi), shallow
- Epicenter
- 42.073° N, 111.924° W
- Region
- Idaho
- 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, 2.2 km in depth
- Depth from
- From location
- Station coverage gap
- 102°
- Stations used
- 19
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 1.814 km W of Bloomington, Idaho · 16455 days ago · 10 km deep · 32 km away
- 3.718 km ENE of Georgetown, Idaho · 16441 days ago · 5 km deep · 81 km away
- 1.9southern Idaho · 16429 days ago · 6 km deep · 49 km away
- 1.615 km E of Snowville, Utah · 16408 days ago · 1 km deep · 51 km away
Before
Earthquakes todayIdaho earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uu50002525. Read Sun, Oct 4, 2026, 4:33 PM UTC.