Document Type
Article
Department or Administrative Unit
Geological Sciences
Publication Date
9-1-2001
Abstract
We use Global Positioning System (GPS) data from 1993–2000 to determine horizontal velocities of 65 stations in eastern California and western Nevada between 35° and 37° N. We relate the geodetic velocities to fault slip rates using a block model that enforces path integral constraints over geologic and geodetic time scales and that includes the effects of elastic strain accumulation on faults locked to a depth of 15 km. The velocity of the Sierra Nevada block with respect to Nevada is 11.1±0.3 mm/yr, with slip partitioned across the Death Valley, (2.8±0.5 mm/yr), Panamint Valley (2.5±0.8 mm/yr), and Airport Lake/Owens Valley (5.3±0.7/4.6±0.5 mm/yr) faults. The western Mojave block rotates at 2.1±0.8°/My clockwise, with 3.7±0.7 mm/yr of left lateral motion across the western Garlock Fault. We infer 11±2 mm/yr of right lateral motion across the Mojave region of the Eastern California Shear Zone.
Recommended Citation
McClusky, S. C.; Bjornstad, S. C.; Hager, B. H.; King, R. W.; Meade, B. J.; Miller, M. Meghan; Monastero, F. C.; and Souter, B. J., "Present Day Kinematics of the Eastern California Shear Zone from a Geodetically Constrained Block Model" (2001). All Faculty Scholarship for the College of the Sciences. 283.
https://digitalcommons.cwu.edu/cotsfac/283
Journal
Geophysical Research Letters
Rights
Copyright 2001 by the American Geophysical Union.
Included in
Geomorphology Commons, Geophysics and Seismology Commons, Tectonics and Structure Commons
Comments
This article was originally published in Geophysical Research Letters. The full-text article from the publisher can be found here.