M2.3 earthquake 40 km WSW of Twisp, Washington
A magnitude 2.3 earthquake struck 40 km WSW of Twisp, Washington on Sun, Jan 19, 2003, 12:08 PM PST (20:08 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M2.7 6 km WNW of Tonasket, 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
- 2003-01-19 20:08:35 UTC
- Depth
- 5.4 km (3.3 mi), shallow
- Epicenter
- 48.290° N, 120.658° 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 2.0 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 86°
- Stations used
- 27
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
- 2.18 km WSW of Chelan Falls, Washington · 8638 days ago · 3 km deep · 72 km away
- 1.654 km WNW of Granite Falls, Washington · 8638 days ago · 8 km deep · 23 km away
- 2.66 km N of Waterville, Washington · 8617 days ago · 5 km deep · 79 km away
- 2.18 km WNW of Tonasket, Washington · 8596 days ago · -1 km deep · 96 km away
- 2.76 km WNW of Tonasket, Washington · 8596 days ago · -1 km deep · 98 km away
- 1.56 km NW of Tonasket, Washington · 8596 days ago · 1 km deep · 98 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10576953. Read Thu, Oct 1, 2026, 2:51 PM UTC.