M2.3 earthquake 7 km N of Quincy, Washington
A magnitude 2.3 earthquake struck 7 km N of Quincy, Washington on Sat, Jun 18, 1977, 10:44 AM PDT (17:44 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M3.9 10 km SSW of South Cle Elum, 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, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1977-06-18 17:44:15 UTC
- Depth
- 0.1 km (0.1 mi), shallow
- Epicenter
- 47.306° N, 119.854° 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 0.4 km horizontally
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 119°
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.35 km NNE of Waterville, Washington · 17999 days ago · 0 km deep · 45 km away
- 3.910 km SSW of South Cle Elum, Washington · 17978 days ago · 2 km deep · 89 km away
- 2.012 km S of South Cle Elum, Washington · 17978 days ago · -1 km deep · 88 km away
- 2.213 km SSW of South Cle Elum, Washington · 17978 days ago · 4 km deep · 91 km away
- 2.413 km SSW of South Cle Elum, Washington · 17978 days ago · 5 km deep · 90 km away
- 1.70 km S of Royal City, Washington · 17975 days ago · 12 km deep · 49 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10843873. Read Fri, Oct 2, 2026, 2:58 AM UTC.