Maacama Fault

Map showing major faults in the San Francisco Bay Area

The Maacama Fault is a right lateral-moving (dextral) geologic fault located in the Coast Ranges of northwestern California. It is considered to be the northernmost segment of the Hayward Fault subsystem of the San Andreas Fault zone. Creep along the Maacama is about 8 mm per year, consistent with the steady movement along the rest of the Hayward Fault system. It is also capable of producing large earthquakes.^[1]

The Maacama Fault runs just east of Ukiah and just west of Willits.

References

^ LARSEN, Mort, PRENTICE, Carol S., KELSEY, Harvey M., ZACHARIASEN, Judith, and ROTBERG, Gabriel L. (2005). "Paleoseismic Investigation Of The Maacama Fault At The Haehl Creek Site, Willits, California". The Geological Society of America. Retrieved 12 December 2008.{{cite web}}: CS1 maint: multiple names: authors list (link)

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[1] LARSEN, Mort, PRENTICE, Carol S., KELSEY, Harvey M., ZACHARIASEN, Judith, and ROTBERG, Gabriel L. (2005). "Paleoseismic Investigation Of The Maacama Fault At The Haehl Creek Site, Willits, California". The Geological Society of America. Retrieved 12 December 2008.{{cite web}}: CS1 maint: multiple names: authors list (link)

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v t e Seismically active fault zones and tectonic blocks of California
Statewide Faults	San Andreas Fault Salinian Block
Southern California	Brawley Seismic Zone Chino Fault Elsinore Fault Zone Elysian Park Fault Garlock Fault Hollywood fault Hosgri Fault Imperial Fault Zone Laguna Salada Fault Newport–Inglewood Fault Northridge Blind Thrust Fault Peninsular Ranges Puente Hills Fault Raymond Fault Rose Canyon Fault Salton Trough San Cayetano Fault San Diego Trough Fault Zone San Felipe Fault Zone San Gabriel Fault San Jacinto Fault Zone Santa Maria River Fault Santa Ynez Fault Shoreline Fault Sierra Madre Fault Zone Ventura Fault White Wolf Fault Whittier Fault Yorba Linda Fault
Northern California	Bartlett Springs Fault Calaveras Fault Clayton-Marsh Creek-Greenville Fault Concord Fault Hayward Fault Zone Healdsburg Fault Maacama Fault Mendocino Fracture Zone Mendocino Triple Junction Mount Diablo Thrust Fault Monta Vista Fault Nacimiento Fault Pleasanton Fault Rinconada Fault San Gregorio Fault San Pablo Fault Seal Cove Fault Serra Fault Silver Creek Fault Tesla Fault West Napa Fault
Sierra Nevada	Death Valley Fault Zone Furnace Creek Fault Zone Honey Lake Fault Zone Kern Canyon Fault Maria fold and thrust belt Owens Valley Fault Rescue Lineament-Bear Mountains fault zone Sierra Nevada Batholith Sierra Nevada Fault Sierra Nevada-Great Valley Block Smartville Block Walker Lane
Category California Geological Survey Seismic Hazards Mapping Act Mexico (list)