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A fault plane is the plane that represents the fracture surface of a fault. A fault trace or fault line is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. [3] [4] A fault zone is a cluster of parallel faults.
San Andreas Fault System (Banning fault, Mission Creek fault, South Pass fault, San Jacinto fault, Elsinore fault) 1300: California, United States: Dextral strike-slip: Active: 1906 San Francisco (M7.7 to 8.25), 1989 Loma Prieta (M6.9) San Ramón Fault: Chile: Thrust fault: Sawtooth Fault: Idaho, United States: Normal fault: Seattle Fault ...
Anderson's fault theory also presents a model for seismic interpretation. [7] This model predicts the dip of faults according to their regime classification. [2] Conjugate walls in any fault will share a dip angle with that angle being measured from the top of the hanging wall or the bottom of the foot wall. [2]
Along the Motagua Fault trace (1976 Guatemala earthquake) where it crosses the Gualán soccer field. This zigzag type of fault trace is known as "mole track", which is best developed in hard-packed, brittle surface materials. The San Andreas fault trace runs along the base of the Temblor Range of mountains near Bakersfield, California. (The ...
Some use the term "transform fault" to describe the seismically and tectonically active portion of a fracture zone after John Tuzo Wilson's concepts first developed with respect to the Mid-Atlantic Ridge. [2] The term fracture zone has a distinct geological meaning, but it is also used more loosely in the naming of some oceanic features.
Unlabeled lines northwest of Everet Basin = Strawberry Point & Utsalady Point faults; E-F = Seattle Fault zone; C-D = Tacoma Fault zone; A = Olympia Fault; Doty Fault is east–west dashed line just north of Chehalis Basin; curved dashed line = Hood Canal Fault; Dewatto Lineament (western flank of Seattle uplift) runs south from "D", Saddle ...