The June 22, 1909 earthquake
M5.9West of Downieville, California
A magnitude 5.9 earthquake, centred in Sierra County. The 90th strongest in California’s record since 1900, and the strongest within 50 miles in the catalogue, which runs from 1900.
The earthquake
- Magnitude
- 5.9
- local magnitude (ml)
- Depth
- —
- Not recorded
- Local time
- Tuesday, June 22, 1909
- 23:24 PST; 07:24 UTC on Jun 23, 1909
- In California’s record
- 90th
- strongest of 97,065 since 1900
USGS ANSS Comprehensive Earthquake Catalog, event cdmg19090623072400000 (“West of Downieville, California”). 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
- Sierra CountyCA · inside
- Yuba CountyCA · 2.1 mi
- Nevada CountyCA · 5.8 mi
- Butte CountyCA · 7.3 mi
- Plumas CountyCA · 7.9 mi
- Placer CountyCA · 21.3 mi
- El Dorado CountyCA · 36.1 mi
- Sutter CountyCA · 36.2 mi
- Glenn CountyCA · 45.7 mi
- Lassen CountyCA · 47.6 mi
- Tehama CountyCA · 47.8 mi
- Colusa CountyCA · 48.2 mi
Cities, largest first
- ChicoCA · 47.0 mi
- RocklinCA · 49.7 mi
- Yuba CityCA · 42.8 mi
- LincolnCA · 46.0 mi
- OrovilleCA · 29.9 mi
- TruckeeCA · 44.2 mi
- Grass ValleyCA · 19.5 mi
- AuburnCA · 42.0 mi
- MarysvilleCA · 39.4 mi
- ParadiseCA · 36.7 mi
Earthquakes around the epicentre
534 earthquakes of magnitude 3 or more within 50 miles of this epicentre since 1973.
USGS ANSS Comprehensive Earthquake Catalog. Local time is the time zone of the county nearest the epicentre. Magnitudes are as the catalogue reports them.