M1.9 earthquake Washington
A magnitude 1.9 earthquake struck in Washington on Thu, Dec 26, 1991, 1:49 AM PST (09:49 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M3.4 4 km WNW of Waterville, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.9 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1991-12-26 09:49:04 UTC
- Depth
- 4.6 km (2.9 mi), shallow
- Epicenter
- 47.685° N, 120.070° 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 0.5 km horizontally, 0.9 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 89°
- Stations used
- 20
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 2 in the 30 days before it.
After
- 2.110 km NNW of Malott, Washington · 12684 days ago · 2 km deep · 81 km away
- 1.95 km NW of Waterville, Washington · 12677 days ago · 4 km deep · 4 km away
- 2.522 km ENE of Moses Lake, Washington · 12671 days ago · 9 km deep · 98 km away
- 3.44 km WNW of Waterville, Washington · 12671 days ago · 6 km deep · 5 km away
- 2.36 km S of Chelan Falls, Washington · 12658 days ago · 3 km deep · 8 km away
- 2.08 km W of Twisp, Washington · 12643 days ago · -1 km deep · 76 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10289168. Read Sat, Oct 3, 2026, 1:21 AM UTC.