M2.0 earthquake 2 km WNW of Tonasket, Washington
A magnitude 2.0 earthquake struck 2 km WNW of Tonasket, Washington on Fri, Nov 18, 1983, 8:10 PM PST (04:10 UTC), 2 km (1 mi) below the surface.
A larger quake followed: M2.4 13 km ESE of Okanogan, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.0 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1983-11-19 04:10:22 UTC
- Depth
- 2.4 km (1.5 mi), shallow
- Epicenter
- 48.715° N, 119.464° 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 2.3 km horizontally, 3.4 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 301°, poorly surrounded by stations
- 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
- 2.236 km SSE of Princeton, Canada · 15655 days ago · 29 km deep · 80 km away
- 2.314 km E of Mansfield, Washington · 15655 days ago · -1 km deep · 98 km away
- 1.910 km ENE of Mansfield, Washington · 15630 days ago · 0 km deep · 98 km away
- 2.413 km ESE of Okanogan, Washington · 15601 days ago · 0 km deep · 46 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10168733. Read Sun, Oct 4, 2026, 7:53 PM UTC.