M1.8 earthquake 1 km N of Chelan, Washington
A magnitude 1.8 earthquake struck 1 km N of Chelan, Washington on Wed, Apr 9, 1980, 7:22 PM PST (03:22 UTC), -1 km (0 mi) below the surface.
A larger quake followed: M2.3 21 km WNW of Entiat, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.8 (md), micro
- Local time
- UTC
- 1980-04-10 03:22:04 UTC
- Depth
- -0.7 km (-0.4 mi), shallow
- Epicenter
- 47.854° N, 120.017° 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 0.1 km horizontally, 0.3 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- Operator assigned
- Station coverage gap
- 88°
- Stations used
- 10
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
- 2.321 km WNW of Entiat, Washington · 16952 days ago · 6 km deep · 35 km away
- 1.84 km WSW of Wenatchee, Washington · 16929 days ago · 8 km deep · 56 km away
- 2.26 km ENE of Bridgeport, Washington · 16916 days ago · 0 km deep · 37 km away
- 1.816 km WNW of Granite Falls, Washington · 16914 days ago · 8 km deep · 32 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10078478. Read Wed, Sep 23, 2026, 6:11 AM UTC.