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Mendocino fracture zone

The Mendocino fracture zone is a fracture zone and transform boundary over 4000 km long, starting off the coast of Cape Mendocino in far northern California. It runs westward from a triple junction with the San Andreas Fault and the Cascadia subduction zone for about 300 km to the southern end of the Gorda Ridge. It continues on west of its junction with the Gorda Ridge, as an inactive remnant section which extends for about 4,000 km to approximately 35°N 175°W.

History
Robert W. Pease observed in 1965 that the alignment of a transverse tectonic zone extending from Mount Lassen to the Walker Lane at the north end of Honey Lake Fault, suggests it was once the continental terminus of the Mendocino Fault. It forms the boundary of the Modoc Plateau and Columbia Plateau provinces with the Great Basin. Where it meets Honey Lake Fault, it bends to trend northeast across the northwest corner of Nevada, where it accompanies the geological trough that forms Black Rock Desert. ==See also==
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