M2.2 earthquake 15 km ESE of Acme, Washington
A magnitude 2.2 earthquake struck 15 km ESE of Acme, Washington on Fri, Oct 3, 1986, 2:53 AM PDT (09:53 UTC), -1 km (-1 mi) below the surface.
A larger quake followed: M2.3 20 km SSE of Marblemount, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.2 (md), micro
- Local time
- UTC
- 1986-10-03 09:53:58 UTC
- Depth
- -0.9 km (-0.5 mi), shallow
- Epicenter
- 48.688° N, 121.997° W
- Region
- Washington
- 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 0.2 km horizontally, 0.4 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- Operator assigned
- Station coverage gap
- 124°
- 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: 4 in the 60 days after this one and 6 in the 30 days before it.
After
- 2.320 km SSE of Marblemount, Washington · 14600 days ago · 9 km deep · 60 km away
- 1.53 km NNW of Custer, Washington · 14586 days ago · 6 km deep · 56 km away
- 1.617 km ESE of Verlot, Washington · 14581 days ago · 7 km deep · 77 km away
- 1.510 km NW of Marblemount, Washington · 14552 days ago · 0 km deep · 35 km away
Before
- 2.23 km N of Hamilton, Washington · 14610 days ago · -1 km deep · 15 km away
- 2.43 km N of Hamilton, Washington · 14613 days ago · -1 km deep · 15 km away
- 2.417 km ESE of Verlot, Washington · 14623 days ago · 7 km deep · 77 km away
- 2.820 km E of Verlot, Washington · 14623 days ago · 5 km deep · 78 km away
- 1.64 km SW of Darrington, Washington · 14623 days ago · 1 km deep · 58 km away
- 1.60 km S of Oak Harbor, Washington · 14635 days ago · 19 km deep · 65 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10213323. Read Tue, Sep 29, 2026, 10:53 PM UTC.