M2.1 earthquake 15 km N of Kittitas, Washington
A magnitude 2.1 earthquake struck 15 km N of Kittitas, Washington on Wed, Dec 28, 1977, 5:40 AM PST (13:40 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M2.2 3 km ENE of Manson, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.1 (md), micro
- Local time
- UTC
- 1977-12-28 13:40:50 UTC
- Depth
- 0.3 km (0.2 mi), shallow
- Epicenter
- 47.121° N, 120.420° 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 1.0 km horizontally
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 205°, poorly surrounded by stations
- Stations used
- 9
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
- 1.824 km SSE of Royal City, Washington · 17784 days ago · 6 km deep · 84 km away
- 2.23 km ENE of Manson, Washington · 17779 days ago · 0 km deep · 89 km away
- 3.33 km ENE of Manson, Washington · 17772 days ago · 0 km deep · 89 km away
- 2.4Washington · 17743 days ago · 10 km deep · 95 km away
- 1.82 km S of Entiat, Washington · 17740 days ago · 3 km deep · 61 km away
- 1.911 km NNW of Entiat, Washington · 17740 days ago · 5 km deep · 74 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10845453. Read Tue, Sep 22, 2026, 10:54 AM UTC.