Parallel fault strands at 9-km depth resolved on the Imperial Fault, Southern California

Geophysical Research Letters

Volumn 29, Issue 14, 2002, Pages

  Shearer, Peter M ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EARTHQUAKES; GEOPHYSICS;

BRITTLE DUCTILE TRANSITIONS; CREEPING ZONES; DEPTH-RESOLVED; FAULT STRANDS; SHEAR ZONE; SMALL EARTHQUAKES; SOUTHERN CALIFORNIA; WIDE ZONE;

FAULTING;

EID: 0037101741     PISSN: 00948276     EISSN: 19448007     Source Type: Journal    
DOI: 10.1029/2002GL015302     Document Type: Article

References (23)

1. Astiz, L., P. M. Shearer, and, D. C. Agnew, Precise relocations and stress change calculations for the Upland earthquake sequence in southern California, J. Geophys. Res., 105, 2837-2853, 2000.
2. Bennett, R. A., W. Rodi, and, R. E. Relinger, Global Positioning System constraints on fault slip rates in southern California and northern Baja, Mexico, J. Geophys. Res., 101, 21,943-21,960, 1996.
3. Dodge, D. A., G. C. Beroza, and, W. L. Ellsworth, Foreshock sequence of the 1992 Landers, California, earthquake and its implications for earthquake nucleation, J. Geophys. Res., 100, 9865-9880, 1995.
4. Doser, D. I., and, H. Kanamori, Depth of seismicity in the Imperial Valley region (1977-1983) and its relationship to heat flow, crustal structure, and the October 15, 1979, earthquake, J. Geophys. Res., 91, 675-688, 1986.
5. Fuis, G. S., W. D. Mooney, J. H. Healy, G. A. McMechan, and, W. J. Lutter, A seismic refraction survey of the Imperial Valley region, California, J. Geophys. Res., 89, 1165-1189, 1984.
6. Genrich, J. F., Y. Bock, and, R. G. Mason, Crustal deformation across the Imperial Fault: Results from kinematic GPS surveys and trilateration of a densely spaced, small-aperture network, J. Geophys. Res., 102, 4985-5004, 1997.
7. Gillard, D., A. M. Rubin, and, P. Okubo, Highly concentrated seismicity caused by deformation of Kilauea's deep magma system, Nature, 384, 343-346, 1996.
8. Got, J.-L., J. Fréchet, and, F. W. Klein, Deep fault plane geometry inferred from multiplet relative relocation beneath the south flank of Kilauea, J. Geophys. Res., 99, 15,375-15,386, 1994.
9. Hartzell, S., and, D. V. Helmberger, Strong-motion modeling of the Imperial Valley earthquake of 1979, Bull. Seismol. Soc. Am., 72, 571-596, 1982.
10. Ito, A., High resolution relative hypocenters of similar earthquakes by cross-spectral analysis method, J. Phys. Earth, 33, 279-294, 1985.
11. Lyons, S. N., Y. Bock, and, D. T. Sandwell, Creep along the Imperial Fault, Southern California, from GPS measurements, J. Geophys. Res., in press, 2002.
12. Nakamura, Y., A1 moonquakes: source distribution and mechanism, Proc. Lunar Planet. Sci. Conf., 9th, 3589-3607, 1978.
13. Phillips, W. S., L. S. House, and, M. C. Fehler, Detailed joint structure in a geothermal reservoir from studies of induced microearthquake studies, J. Geophys. Res., 102, 11,745-11,763, 1997.
14. Poupinet, G., W. L. Ellsworth, and, J. Frechet, Monitoring velocity variations in the crust using earthquake doublets: An application to the Calaveras Fault, California, J. Geophys. Res., 89, 5719-5731, 1984.
15. Richards-Dinger, K. B., and, P. M. Shearer, Earthquake locations in southern California obtained using source-specific station terms, J. Geophys. Res., 105, 10,939-10,960, 2000.
16. Rowe, C., R. Aster, W. Phillips, R. Jones, B. Borchers, and, M. Fehler, Using automated, high-precision repicking to improve delineation of microseismic structures at the Soultz geothermal reservoir, Pure Appl. Geophys., 159, 563-596, 2002.
17. Rubin, A. M., D. Gillard, and, J.-L. Got, Streaks of microearthquakes along creeping faults, Nature, 400, 635-641, 1999.
18. Rubin, A. M., and, D. Gillard, Aftershock asymmetry/rupture directivity among central San Andreas fault microearthquakes, J. Geophys. Res., 105, 19,095-19,109, 2000.
19. Shearer, P. M., Improving local earthquake locations using the L1 norm and waveform cross-correlation: Application to the Whittier Narrows, California, aftershock sequence, J. Geophys. Res., 102, 8269-8283, 1997.
20. Shearer, P. M., Evidence from a cluster of small earthquakes for a fault at 18 km depth beneath Oak Ridge, southern California, Bull. Seismol. Soc. Am., 88, 1327-1336, 1998.
21. Shearer, P. M., J. L. Hardebeck, L. Astiz, and, K. B. Richards-Dinger, Analysis of similar event clusters in aftershocks of the 1994 Northridge, California, earthquake, J. Geophys. Res., in press, 2002.
22. Waldhauser, F., and, W. L. Ellsworth, A double-difference earthquake location algorithm: Method and application to the northern Hayward fault, California. Bull. Seismol. Soc. Am., 90, 1353-1368, 2000.
23. Waldhauser, F., W. L. Ellsworth, and, A. Cole, Slip-parallel seismic lineations on the northern Hayward fault, California, Geophys. Res. Lett., 26, 3525-3528, 1999.