The January 11, 1909 earthquake
M6.0San Juan Islands, Washington
A magnitude 6.0 earthquake, 1.1 miles off San Juan County. The 5th strongest in Washington’s record since 1900, and the strongest within 50 miles in the catalogue, which runs from 1900.
The earthquake
- Magnitude
- 6.0
- local magnitude (ml)
- Depth
- —
- Not recorded
- Local time
- Monday, January 11, 1909
- 15:46 PST; 23:46 UTC
- In Washington’s record
- 5th
- strongest of 5,002 since 1900
USGS ANSS Comprehensive Earthquake Catalog, event uw19090111234600000 (“San Juan Islands, Washington”). The USGS event page carries the ShakeMap, felt reports and the official summary.
Counties and cities within 50 miles
Distance from the epicentre to each county boundary (zero when inside) and to each city centre.
Counties
- San Juan CountyWA · 1.1 mi
- Whatcom CountyWA · 4.2 mi
- Skagit CountyWA · 7.1 mi
- Island CountyWA · 21.5 mi
- Snohomish CountyWA · 34.0 mi
- Clallam CountyWA · 38.2 mi
- Jefferson CountyWA · 38.4 mi
Cities, largest first
- BellinghamWA · 15.5 mi
- Mount VernonWA · 29.7 mi
- Oak HarborWA · 29.1 mi
- ArlingtonWA · 47.3 mi
- Port AngelesWA · 49.9 mi
- AnacortesWA · 16.7 mi
- FerndaleWA · 14.3 mi
- LyndenWA · 23.3 mi
- Sedro-WoolleyWA · 29.0 mi
- BurlingtonWA · 26.9 mi
- Port TownsendWA · 40.0 mi
Earthquakes around the epicentre
131 earthquakes of magnitude 3 or more within 50 miles of this epicentre since 1973.
No earlier earthquake of magnitude 5 or more within 50 miles in the catalogue since 1900.
USGS ANSS Comprehensive Earthquake Catalog. Local time is the time zone of the county nearest the epicentre. Magnitudes are as the catalogue reports them.