M1.5 earthquake 27 km SW of Lima, Montana
A magnitude 1.5 earthquake struck 27 km SW of Lima, Montana on Sat, Sep 20, 2014, 9:18 PM MDT (03:18 UTC), 10 km (6 mi) below the surface.
Automatic solution: the magnitude and location may still be revised.
A larger quake followed: M1.6 18 km N of Spencer, Idaho. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (mc), micro
- Local time
- UTC
- 2014-09-21 03:18:18 UTC
- Depth
- 9.6 km (6.0 mi), shallow
- Epicenter
- 44.460° N, 112.835° W
- Region
- Idaho
- Tsunami flag
- No
- Status
- Automatic solution, may be revised
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
An automatic solution; a seismologist may revise it.
- Location uncertainty
- About 0.5 km horizontally, 1.6 km in depth
- Magnitude uncertainty
- ±0.50
- Station coverage gap
- 65°
- Stations used
- 23
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 1.519 km N of Spencer, Idaho · 4372 days ago · 8 km deep · 51 km away
- 1.618 km N of Spencer, Idaho · 4372 days ago · 7 km deep · 51 km away
- 1.741 km NE of Spencer, Idaho · 4359 days ago · 11 km deep · 79 km away
- 1.741 km NE of Spencer, Idaho · 4348 days ago · 10 km deep · 79 km away
- 1.813 km N of Dillon, Montana · 4345 days ago · 10 km deep · 99 km away
Before
Earthquakes todayIdaho earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event mb14173193. Read Tue, Sep 22, 2026, 8:50 PM UTC.