M1.6 earthquake 32 km NNW of Lima, Montana
A magnitude 1.6 earthquake struck 32 km NNW of Lima, Montana on Thu, Sep 24, 2015, 3:14 AM MDT (09:14 UTC), 11 km (7 mi) below the surface.
A larger quake followed: M1.6 27 km NW of Lima, Montana. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (ml), micro
- Local time
- UTC
- 2015-09-24 09:14:05 UTC
- Depth
- 10.7 km (6.6 mi), shallow
- Epicenter
- 44.917° N, 112.718° W
- Region
- Montana
- 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 0.6 km horizontally, 1.4 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 138°
- Stations used
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 6 in the 30 days before it.
After
- 1.512 km WNW of Pony, Montana · 3994 days ago · 4 km deep · 100 km away
- 1.627 km NW of Lima, Montana · 3972 days ago · 3 km deep · 16 km away
Before
- 1.540 km NNE of Spencer, Idaho · 4027 days ago · 12 km deep · 69 km away
- 2.119 km E of Lima, Montana · 4028 days ago · 5 km deep · 42 km away
- 1.78 km E of Lima, Montana · 4030 days ago · 8 km deep · 36 km away
- 2.37 km E of Lima, Montana · 4031 days ago · 7 km deep · 35 km away
- 2.97 km E of Lima, Montana · 4031 days ago · 6 km deep · 35 km away
- 1.520 km E of Lima, Montana · 4039 days ago · 0 km deep · 41 km away
Earthquakes todayMontana earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event mb80099099. Read Tue, Sep 22, 2026, 9:39 PM UTC.