M1.5 earthquake 5 km SSE of Lynden, Washington
A magnitude 1.5 earthquake struck 5 km SSE of Lynden, Washington on Mon, Sep 22, 2003, 12:07 PM PDT (19:07 UTC), 16 km (10 mi) below the surface.
A larger quake followed: M2.5 8 km ESE of Oak Bay, Canada. 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
- 2003-09-22 19:07:04 UTC
- Depth
- 15.8 km (9.8 mi), shallow
- Epicenter
- 48.900° N, 122.422° 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 1.7 km horizontally, 3.6 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 162°
- 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: 9 in the 60 days after this one and 4 in the 30 days before it.
After
- 2.13 km NE of Anacortes, Washington · 8407 days ago · 16 km deep · 42 km away
- 2.010 km NNW of Marblemount, Washington · 8406 days ago · 0 km deep · 73 km away
- 1.68 km NNW of Freeland, Washington · 8401 days ago · 57 km deep · 91 km away
- 2.58 km ESE of Oak Bay, Canada · 8393 days ago · 44 km deep · 78 km away
- 1.932 km NNE of Marblemount, WA · 8374 days ago · -1 km deep · 79 km away
- 1.711 km W of Coupeville, Washington · 8373 days ago · 15 km deep · 79 km away
- 1.68 km SSW of Swede Heaven, Washington · 8364 days ago · 13 km deep · 90 km away
- 1.56 km ESE of Oso, Washington · 8361 days ago · 13 km deep · 84 km away
- 1.86 km WSW of La Conner, Washington · 8354 days ago · 62 km deep · 60 km away
Before
- 2.214 km NE of Jamestown, Washington · 8413 days ago · 24 km deep · 85 km away
- 1.813 km W of Hope, Canada · 8416 days ago · 0 km deep · 81 km away
- 1.55 km NE of Anacortes, Washington · 8417 days ago · 12 km deep · 40 km away
- 1.519 km NNE of Jamestown, Washington · 8442 days ago · 48 km deep · 81 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10599193. Read Sun, Oct 4, 2026, 3:10 AM UTC.