M1.7 earthquake 4 km SE of Avon, Montana
A magnitude 1.7 earthquake struck 4 km SE of Avon, Montana on Mon, Mar 13, 2017, 7:50 AM MDT (13:50 UTC), 15 km (9 mi) below the surface.
A larger quake followed: M2.6 4 km SE of Avon, Montana. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.7 (ML, local (Richter)), micro
- Magnitude from
- Montana Bureau of Mines and Geology
- Local time
- UTC
- 2017-03-13 13:50:59 UTC
- Depth
- 14.8 km (9.2 mi), shallow
- Epicenter
- 46.574° N, 112.556° 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 0.3 km horizontally, 0.5 km in depth
- Magnitude uncertainty
- ±0.34
- Depth from
- From location
- Station coverage gap
- 75°
- Stations used
- 18
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 6 in the 30 days before it.
After
- 1.510 km NNE of Lincoln, Montana · 3488 days ago · 8 km deep · 51 km away
- 1.84 km SE of Avon, Montana · 3488 days ago · 12 km deep · 1 km away
- 1.711 km W of Clancy, Montana · 3482 days ago · 2 km deep · 34 km away
- 2.64 km SE of Avon, Montana · 3480 days ago · 14 km deep · 1 km away · felt by 2
- 2.538 km WSW of Augusta, Montana · 3480 days ago · 15 km deep · 86 km away
Before
- 3.84 km ESE of Avon, Montana · 3489 days ago · 20 km deep · 1 km away · felt by 231
- 3.49 km ENE of Marysville, Montana · 3495 days ago · 11 km deep · 37 km away · felt by 53
- 2.515 km S of Whitehall, Montana · 3501 days ago · 5 km deep · 100 km away
- 2.418 km ESE of Ovando, Montana · 3501 days ago · 11 km deep · 49 km away
- 1.535 km NE of Seeley Lake, Montana · 3504 days ago · 14 km deep · 98 km away
- 2.412 km ESE of Lincoln, Montana · 3506 days ago · 11 km deep · 35 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event mb80202039. Read Thu, Oct 1, 2026, 10:19 AM UTC.