Birth of a fault: Connecting the Kern County and Walker Pass, California, earthquakes
@article{Bawden1999BirthOA, title={Birth of a fault: Connecting the Kern County and Walker Pass, California, earthquakes}, author={Gerald W. Bawden and Andrew J. Michael and Louise H. Kellogg}, journal={Geology}, year={1999}, volume={27}, pages={601-604} }
A band of seismicity transects the southern Sierra Nevada range between the northeastern end of the site of the 1952 M W (moment magnitude) 7.3 Kern County earthquake and the site of the 1946 M W 6.1 Walker Pass earthquake. Relocated earthquakes in this band, which lacks a surface expression, better delineate the northeast-trending seismic lineament and resolve complex structure near the Walker Pass mainshock. Left-lateral earthquake focal planes are rotated counterclockwise from the strike of…
19 Citations
Quaternary reactivation of the Kern Canyon fault system, southern Sierra Nevada, California
- Geology
- 2010
The Kern Canyon fault, the longest fault in the southern Sierra Nevada, is an active structure and has been reactivated at discrete times over the past ~100 m.y. in response to changing lithospheric…
Community Fault Model (CFM) for Southern California
- Geology
- 2007
We present a new three-dimensional model of the major fault systems in southern California. The model describes the San Andreas fault and associated strike- slip fault systems in the eastern…
Source parameters for the 1952 Kern County earthquake, California : A joint inversion of leveling and triangulation observations
- Geology
- 2001
Coseismic leveling and triangulation observations are used to determine the faulting geometry and slip distribution of the July 21, 1952, Mw 7.3 Kern County earthquake on the White Wolf fault. A…
Seismicity, Stress State, and Style of Faulting of the Ridgecrest-Coso Region from the 1930s to 2019: Seismotectonics of an Evolving Plate Boundary Segment
- GeologyBulletin of the Seismological Society of America
- 2020
Decadal scale variations in the seismicity rate in the Ridgecrest-Coso region, part of the Eastern California Shear Zone, included seismic quiescence from the 1930s to the early 1980s, followed by…
Mantle flow distribution beneath the California margin
- GeologyNature communications
- 2020
The crustal velocity field of the Plate Boundary Observatory is used to illuminate the distribution of horizontal flow beneath the California margin, finding that a major step is associated with return flow below the Eastern California Shear Zone, leading to the extrusion of the Mojave block and a re-distribution of fault activity since the Pleistocene.
Distribution of seismicity across strike‐slip faults in California
- Geology
- 2008
[1] The distribution of seismicity about strike-slip faults provides measurements of fault roughness and damage zone width. In California, seismicity decays with distance from strike-slip faults…
Regional tectonics of the Coso geothermal area along the intracontinental plate boundary in central eastern California : Three-dimensional Vp and Vp/Vs models, spatial-temporal seismicity patterns, and seismogenic deformation
- Geology
- 2007
We synthesize the tectonics of the southern Walker Lane belt and Coso Range in central eastern California using regional earthquake data. First, we invert for three-dimensional models of the V_p and…
Slip Complementarity and Triggering between the Foreshock, Mainshock, and Afterslip of the 2019 Ridgecrest Rupture Sequence
- GeologyBulletin of the Seismological Society of America
- 2020
We investigate the deformation processes during the 2019 Ridgecrest earthquake sequence by combining Global Navigation Satellite Systems, strong-motion, and Interferometric Synthetic Aperture Radar…
GEM Plate Boundary Simulations for the Plate Boundary Observatory: A Program for Understanding the Physics of Earthquakes on Complex Fault Networks via Observations, Theory and Numerical Simulation
- Geology
- 2002
Abstract—The last five years have seen unprecedented growth in the amount and quality of geodetic data collected to characterize crustal deformation in earthquake-prone areas such as California and…
GEM Plate Boundary Simulations for the Plate Boundary Observatory : A Program for Understanding the Physics of Earthquakes on Complex Fault Networks via Observations , Theory and Numerical Simulation
- Geology
- 2002
The last five years have seen unprecedented growth in the amount and quality of geodetic data collected to characterize crustal deformation in earthquake-prone areas such as California and Japan. The…
References
SHOWING 1-10 OF 13 REFERENCES
The Walker Pass earthquakes and structure of the Southern Sierra Nevada
- Geology
- 1949
On March 15, 1946, a strong earthquake occurred in the Walker Pass area
of the southern Sierra Nevada. This earthquake and a large foreshock and
numerous aftershocks were well registered at…
Evidence of basin-and-range extensional tectonics in the Sierra Nevada: The Durrwood Meadows swarm, Tulare county, California (1983-1984)
- Geology
- 1986
An extensive earthquake swarm occurred at Durrwood Meadows in the southern Sierra Nevada of eastern California during late 1983 and 1984. It was located within a 100-km-long linear belt of seismicity…
Analysis of the 1986 Mt. Lewis, California, earthquake: preshock sequence-mainshock-aftershock sequence
- Geology
- 1993
Three‐dimensional velocity structure, seismicity, and fault structure in the Parkfield Region, central California
- Geology
- 1993
This study examines the three-dimensional velocity structure in a 60- by 80-km region containing the Parkfield segment of the San Andreas fault. We use local earthquake and shot P arrival times in an…
Empirical observations regarding reverse earthquakes, blind thrust faults, and quaternary deformation: Are blind thrust faults truly blind?
- GeologyBulletin of the Seismological Society of America
- 1997
Active thrust faults pose a significant seismic hazard worldwide. Many of these faults include “blind” thrusts, where the propagating fault tip does not reach the Earth's surface, and “buried”…
Experiments on strike-slip faulting and block rotation
- Geology
- 1994
Analogue model experiments investigating strike-slip faulting in zones of distributed shear deformation show that fault orientations and fault evolution indicate modifications of the stress field…
Pacific-North America Plate Tectonics of the Neogene Southwestern United States: An Update
- Geology
- 1998
We use updated rotations within the Pacific-Antarctica-Africa-North America plate circuit to calculate Pacific-North America plate reconstructions for times since chron 13 (33 Ma). The direction of…
Geotomography with local earthquake data
- Geology
- 1988
The inversion of local earthquake data (LED) for three-dimensional velocity structure requires the simultaneous solution of the coupled hypocenter-model problem. The Aki-Christoffersson-Husebye…
The metamorphic and plutonic rocks of the southernmost Sierra Nevada, California, and their tectonic framework
- Geology
- 1989
--------------------------l Introduction------------------------1 Acknowledgments----------------------3 Metamorphic rocks ---------------------3 Metasedimentary rocks of the Keene area-------3…