M1.5 earthquake 8 km SW of Chelan Falls, Washington
A magnitude 1.5 earthquake struck 8 km SW of Chelan Falls, Washington on Sun, Aug 23, 1981, 2:41 AM PDT (09:41 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M2.4 10 km NE of Methow, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (md), micro
- Local time
- UTC
- 1981-08-23 09:41:16 UTC
- Depth
- -0.2 km (-0.1 mi), shallow
- Epicenter
- 47.748° N, 120.075° 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 0.7 km horizontally
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 61°
- Stations used
- 22
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 1 in the 30 days before it.
After
- 2.410 km NE of Methow, Washington · 16457 days ago · 0 km deep · 51 km away
- 2.67 km NNW of Royal City, Washington · 16431 days ago · 1 km deep · 93 km away
- 1.66 km SSE of Thorp, Washington · 16418 days ago · 10 km deep · 92 km away
- 2.32 km SW of Kittitas, Washington · 16413 days ago · 8 km deep · 91 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10131283. Read Tue, Sep 22, 2026, 2:17 PM UTC.