Idaho earthquakes

M2.1 earthquake 43 km NE of Spencer, Idaho

A magnitude 2.1 earthquake struck 43 km NE of Spencer, Idaho on Fri, Jan 27, 2017, 10:27 AM MST (17:27 UTC), 14 km (8 mi) below the surface.

A larger quake followed: M3.4 42 km W 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
2.1 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2017-01-27 17:27:46 UTC
Depth
13.6 km (8.5 mi), shallow
Epicenter
44.689° N, 111.880° 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 0.3 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.25
Depth from
From location
Station coverage gap
82°
Stations used
37

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 28 in the 60 days after this one and 21 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80197919. Read Thu, Oct 1, 2026, 11:33 PM UTC.