The October 5, 1909 earthquake
M5.6Hansel Valley, Utah
A magnitude 5.6 earthquake, centred in Box Elder County. The 8th strongest in Utah’s record since 1900, and the strongest within 50 miles in the catalogue, which runs from 1900.
The earthquake
- Magnitude
- 5.6
- moment magnitude (Mw)
- Depth
- —
- Not recorded
- Local time
- Tuesday, October 5, 1909
- 19:41 MST; 02:41 UTC on Oct 6, 1909
- In Utah’s record
- 8th
- strongest of 2,224 since 1900
USGS ANSS Comprehensive Earthquake Catalog, event ushis493 (“Hansel Valley, Utah”). 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
- Box Elder CountyUT · inside
- Cassia CountyID · 20.6 mi
- Oneida CountyID · 20.6 mi
- Cache CountyUT · 30.6 mi
- Franklin CountyID · 33.3 mi
- Power CountyID · 36.6 mi
- Weber CountyUT · 39.9 mi
- Bannock CountyID · 40.9 mi
Cities, largest first
- LoganUT · 44.4 mi
- Brigham CityUT · 39.2 mi
- SmithfieldUT · 45.0 mi
- TremontonUT · 27.0 mi
- North LoganUT · 46.1 mi
- Pleasant ViewUT · 48.8 mi
- HyrumUT · 45.6 mi
Earthquakes around the epicentre
119 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.