M3.9 earthquake 12 km NNE of Georgetown, Idaho
A magnitude 3.9 earthquake struck 12 km NNE of Georgetown, Idaho on Tue, Mar 17, 1987, 5:00 PM MST (00:00 UTC), 5 km (3 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb), minor
- Local time
- UTC
- 1987-03-18 00:00:42 UTC
- Depth
- 5.0 km (3.1 mi), shallow
- Epicenter
- 42.581° N, 111.299° 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.
- Depth from
- OPERATOR_ASSIGNED
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 2 in the 30 days before it.
After
- 2.28 km NW of Garden City, Utah · 14427 days ago · -3 km deep · 66 km away
- 2.27 km NW of Garden City, Utah · 14427 days ago · -2 km deep · 67 km away
- 1.68 km NW of Garden City, Utah · 14427 days ago · -2 km deep · 66 km away
Before
Earthquakes todayIdaho earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00033db. Read Tue, Sep 22, 2026, 4:46 AM UTC.