M2.3 earthquake 15 km NNW of Cliffdell, Washington
A magnitude 2.3 earthquake struck 15 km NNW of Cliffdell, Washington on Sun, May 27, 1979, 1:38 AM PDT (08:38 UTC), 4 km (3 mi) below the surface.
A larger quake followed: M2.5 10 km W 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
- 2.3 (md), micro
- Local time
- UTC
- 1979-05-27 08:38:32 UTC
- Depth
- 4.2 km (2.6 mi), shallow
- Epicenter
- 47.065° N, 121.184° 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 1.8 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- Operator assigned
- Station coverage gap
- 228°, poorly surrounded by stations
- Stations used
- 14
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 3 in the 30 days before it.
After
- 1.73 km W of Covington, Washington · 17258 days ago · 1 km deep · 81 km away
- 2.510 km W of Entiat, Washington · 17245 days ago · 4 km deep · 92 km away
- 1.90 km SE of Union Hill-Novelty Hill, Washington · 17232 days ago · 18 km deep · 92 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10849848. Read Tue, Sep 22, 2026, 8:43 AM UTC.