Idaho earthquakes

M1.8 earthquake 18 km SW of Lima, Montana

A magnitude 1.8 earthquake struck 18 km SW of Lima, Montana on Tue, May 16, 2017, 8:20 AM MDT (14:20 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.4 30 km NNW of Lima, 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
1.8 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2017-05-16 14:20:47 UTC
Depth
9.9 km (6.2 mi), shallow
Epicenter
44.506° N, 112.727° 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 0.6 km horizontally, 1.7 km in depth
Magnitude uncertainty
±0.24
Depth from
From location
Station coverage gap
82°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.833 km SE of Leadore, Idaho · 3403 days ago · 6 km deep · 31 km away
  2. 1.924 km E of Challis, Idaho · 3401 days ago · 3 km deep · 95 km away
  3. 2.123 km E of Challis, Idaho · 3399 days ago · 9 km deep · 96 km away
  4. 1.631 km NNW of Lima, Montana · 3399 days ago · 5 km deep · 44 km away
  5. 2.029 km NNW of Lima, Montana · 3399 days ago · 5 km deep · 43 km away
  6. 1.932 km NNW of Lima, Montana · 3397 days ago · 7 km deep · 44 km away
  7. 2.231 km NNW of Lima, Montana · 3397 days ago · 1 km deep · 45 km away
  8. 1.718 km NW of Lima, Montana · 3395 days ago · 2 km deep · 27 km away
  9. 2.430 km NNW of Lima, Montana · 3380 days ago · 10 km deep · 43 km away
  10. 1.831 km NNW of Lima, Montana · 3379 days ago · 3 km deep · 44 km away
  11. 1.730 km NNW of Lima, Montana · 3379 days ago · 3 km deep · 44 km away
  12. 1.630 km NNW of Lima, Montana · 3376 days ago · 2 km deep · 44 km away

Before

  1. 1.814 km ENE of Lima, MT · 3431 days ago · 7 km deep · 32 km away
  2. 2.227 km W of Hebgen Lake Estates, Montana · 3444 days ago · 13 km deep · 99 km away
  3. 2.318 km NW of Lima, Montana · 3445 days ago · 3 km deep · 27 km away
  4. 1.635 km W of Dillon, Montana · 3449 days ago · 5 km deep · 84 km away
  5. 2.326 km N of Spencer, Idaho · 3453 days ago · 13 km deep · 42 km away
  6. 2.035 km WSW of Lima, Montana · 3453 days ago · 8 km deep · 19 km away
  7. 2.015 km ESE of Lima, Montana · 3453 days ago · 7 km deep · 27 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80209454. Read Thu, Oct 1, 2026, 7:57 AM UTC.