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Earthquake processes in the Rainbow Mountain-Fairview Peak-Dixie Valley, Nevada, region 1954-1959

Doser, Diane I. (1986) Earthquake processes in the Rainbow Mountain-Fairview Peak-Dixie Valley, Nevada, region 1954-1959. Journal of Geophysical Research. Solid Earth, 91 (B12). pp. 12572-12586. ISSN 2169-9313. doi:10.1029/JB091iB12p12572.

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The 1954 Rainbow Mountain‐Fairview Peak‐Dixie Valley, Nevada, sequence produced the most extensive pattern of surface faults in the intermountain region in historic time. Five earthquakes of M>6.0 occurred during the first 6 months of the sequence, including the December 16, 1954, Fairview Peak (M = 7.1) and Dixie Valley (M = 6.8) earthquakes. Three 5.5≤M≤6.5 earthquakes occurred in the region in 1959, but none exhibited surface faulting. The results of the modeling suggest that the M>6.5 earthquakes of this sequence are complex events best fit by multiple source‐time functions. Although the observed surface displacements for the July and August 1954 events showed only dip‐slip motion, the fault plane solutions and waveform modeling suggest the earthquakes had significant components of right‐lateral strike‐slip motion (rakes of −135° to −145°). All of the earthquakes occurred along high‐angle faults with dips of 40° to 70°. Seismic moments for individual subevents of the sequence range from 8.0 × 10^(17) to 2.5 × 10^(19) N m. Stress drops for the subevents, including the Fairview Peak subevents, were between 0.7 and 6.0 MPa.

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Additional Information:© 1986 by the American Geophysical Union. Received March 6, 1986; revised June 27, 1986; accepted July 29, 1986. T. Webb provided a starting version of the body wave program that was modified and used in this analysis. M. R. Baker patiently digitized and redigitized seismograms as well as helping with aspects of the programming. S. Wesnousky critically reviewed an early version of the manuscript and offered helpful comments. Comments by A. Ryall, D. E. James, and an associate editor are also appreciated. D. Helmberger provided useful advice during the modeling process. The help of numerous people from around the world who provided seismograms for this study is also appreciated. D. Doser was supported by a Caltech Bantrell postdoctoral research fellowship during this study. Division of Geological and Planetary Science, California Institute of Technology, Pasadena, contribution 4296.
Group:Seismological Laboratory
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Caltech Bantrell Postdoctoral FellowshipUNSPECIFIED
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Caltech Division of Geological and Planetary Sciences4296
Issue or Number:B12
Record Number:CaltechAUTHORS:20190910-155313160
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Official Citation:Doser, D. I. (1986), Earthquake processes in the Rainbow Mountain‐Fairview Peak‐Dixie Valley, Nevada, region 1954–1959, J. Geophys. Res., 91(B12), 12572–12586, doi:10.1029/JB091iB12p12572
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98560
Deposited By: Tony Diaz
Deposited On:10 Sep 2019 23:30
Last Modified:16 Nov 2021 17:39

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