M1.5 earthquake 28 km S of White Swan, Washington
A magnitude 1.5 earthquake struck 28 km S of White Swan, Washington on Tue, May 6, 2003, 3:49 PM PDT (22:49 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M2.1 17 km NNE of Trout Lake, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2003-05-06 22:49:43 UTC
- Depth
- 5.2 km (3.2 mi), shallow
- Epicenter
- 46.127° N, 120.688° 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 1.9 km horizontally, 1.7 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 142°
- Stations used
- 7
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 0 in the 30 days before it.
After
- 1.89 km S of Prosser, Washington · 8544 days ago · 22 km deep · 70 km away
- 1.73 km ENE of Tampico, Washington · 8516 days ago · -1 km deep · 47 km away
- 2.117 km NNE of Trout Lake, Washington · 8510 days ago · -1 km deep · 61 km away
- 1.615 km NNE of Prosser, Washington · 8502 days ago · 6 km deep · 81 km away
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10582258. Read Sun, Oct 4, 2026, 8:01 AM UTC.