Sandwich Fault Zone

Fault Zone in Illinois, USA

The Sandwich Fault Zone is a fault zone that runs northwest from Oswego to Ogle County, transecting Lee County in Northern Illinois. The fault has generally not been active, although there was a minor earthquake in 2002, and another, slightly larger one, in 2010.^[1] It has a largely 400 to 600-foot vertical displacement, although parts can reach up to an 800-foot displacement, and is likely a configuration of several smaller faults, varying in both direction and displacement.^[2]^[3]

Notes

^ "No injuries, damage in 3.8-magnitude earthquake". WLS-TV. February 10, 2010. Retrieved 15 March 2010.
^ Morrow, William (May 2003). "When is the next earthquake in Illinois?" (PDF). Water Resources Update – Illinois District Newsletter. US Geological Survey. pp. 4–5. Archived from the original (PDF) on 2017-10-11. Retrieved 7 March 2010.
^ McGarry, Christopher S. (1999). Bedrock Geology of Lee County Illinois (PDF). Illinois State Geological Survey. OCLC 41366650. Retrieved 4 December 2017.

References

Kolata, Dennis R.; Buschbach, T. C.; Treworgy, Janis D. (1978). The Sandwich Fault Zone of Northern Illinois. Vol. Information circular / Illinois State Geological Survey, [no. 505]. Urbana: Illinois State Geological Survey. hdl:10111/UIUCOCA:sandwichfaultzon505kola.

Major seismically active faults of North America

North America
(crosses national borders)

Aleutian Trench (US–RU)
Basin and Range Province (US–MX)
Canadian Arctic Rift System (CA–GL)
Cascadia subduction zone (US–CA)
Clarendon-Linden fault system (US–CA)
Denali Fault (US–CA)
Northern Cordilleran Volcanic Province (CA–US)
Puget Sound faults (US–CA)
Rio Grande rift (US–MX)
San Andreas Fault (US–MX)
Southern Great Lakes Seismic Zone (US–CA)
Tintina Fault (US–CA)

Canada

United States

Washington and Oregon	Brothers Fault Zone Olympic–Wallowa Lineament Puget Sound (Seattle Fault, Tacoma Fault) Walker Lane
California	Calaveras Fault Garlock Fault Hayward Fault Zone Mendocino Fracture Zone Newport–Inglewood Fault Puente Hills Fault Rose Canyon Fault San Jacinto Fault Zone (Elsinore Fault Zone)
Great Basin	Independence Valley fault system Moab Fault Teton Fault Wasatch Fault
Great Plains	Central Oklahoma Fault Zone Humboldt Fault Long Point–Eureka Heights fault system Meers Fault Nemaha Fault Zone Wilzetta Fault
Midwest	Marianna Fault New Madrid Seismic Zone Sandwich Fault Zone Wabash Valley Seismic Zone
Appalachian Mountains and Atlantic Coast	Aiken–Augusta Fault Eastern Tennessee Seismic Zone Middleton Place–Summerville Seismic Zone (Woodstock Fault) Northern Appalachians Seismic Zone Ramapo Fault Virginia Seismic Zone