M2.2 earthquake 4 km SSE of Sandy, Oregon
A magnitude 2.2 earthquake struck 4 km SSE of Sandy, Oregon on Mon, Dec 22, 1986, 10:56 AM PST (18:56 UTC), 19 km (12 mi) below the surface.
A larger quake followed: M2.3 22 km NNW of Carson, 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
- 1986-12-22 18:56:54 UTC
- Depth
- 19.5 km (12.1 mi), shallow
- Epicenter
- 45.359° N, 122.240° W
- Region
- Oregon
- 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 0.7 km horizontally, 0.9 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 143°
- Stations used
- 40
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 5 in the 30 days before it.
After
- 2.322 km NNW of Carson, Washington · 14487 days ago · 8 km deep · 64 km away
- 1.85 km WSW of North Bonneville, Washington · 14470 days ago · 3 km deep · 33 km away
- 1.66 km ESE of Hockinson, Washington · 14464 days ago · 8 km deep · 41 km away
Before
- 1.62 km W of Silverton, Oregon · 14519 days ago · 28 km deep · 59 km away
- 1.81 km NE of North Bonneville, Washington · 14523 days ago · 3 km deep · 39 km away
- 1.63 km ESE of Woodland, Washington · 14528 days ago · 16 km deep · 69 km away
- 1.734 km N of Amboy, WA · 14530 days ago · 6 km deep · 96 km away
- 1.641 km SSE of Morton, Washington · 14534 days ago · 5 km deep · 96 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10216613. Read Tue, Sep 22, 2026, 2:08 PM UTC.