M1.9 earthquake 6 km SSW of Winthrop, Washington
A magnitude 1.9 earthquake struck 6 km SSW of Winthrop, Washington on Mon, Dec 7, 1981, 7:16 PM PST (03:16 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M2.2 1 km NE of Mansfield, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.9 (md), micro
- Local time
- UTC
- 1981-12-08 03:16:41 UTC
- Depth
- -0.0 km (-0.0 mi), shallow
- Epicenter
- 48.420° N, 120.214° 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 3.8 km horizontally, 12.5 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- Operator assigned
- Station coverage gap
- 183°, poorly surrounded by stations
- Stations used
- 12
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 4 in the 30 days before it.
After
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10121623. Read Thu, Sep 24, 2026, 9:58 AM UTC.