M2.3 earthquake 12 km WSW of Tonasket, Washington
A magnitude 2.3 earthquake struck 12 km WSW of Tonasket, Washington on Sun, Mar 11, 1990, 4:16 PM PST (00:16 UTC), 9 km (5 mi) below the surface.
A larger quake followed: M2.8 13 km NNW of Hartline, 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
- 1990-03-12 00:16:32 UTC
- Depth
- 8.6 km (5.3 mi), shallow
- Epicenter
- 48.647° N, 119.586° 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 25.7 km horizontally, 11.1 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 268°, poorly surrounded by stations
- Stations used
- 11
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 2 in the 30 days before it.
After
- 2.1British Columbia, Canada · 13345 days ago · 2 km deep · 96 km away
- 2.7Washington · 13344 days ago · 0 km deep · 94 km away
- 1.812 km NW of Malott, Washington · 13337 days ago · 7 km deep · 36 km away
- 2.813 km NNW of Hartline, Washington · 13333 days ago · 7 km deep · 98 km away
- 2.014 km S of Loomis, Washington · 13312 days ago · 0 km deep · 7 km away
- 2.613 km W of Mansfield, Washington · 13310 days ago · -1 km deep · 92 km away
- 2.26 km ESE of Mansfield, Washington · 13298 days ago · 0 km deep · 95 km away
- 1.86 km ESE of Mansfield, Washington · 13298 days ago · 0 km deep · 96 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10255193. Read Thu, Oct 1, 2026, 11:06 PM UTC.