Archived report (descriptions no longer maintained)
Brawley Seismic Zone (Class A) No. 124
Last Review Date: 1999-05-01
| County(s) and State(s) |
IMPERIAL COUNTY, CALIFORNIA |
| Physiographic province(s) |
BASIN AND RANGE |
| Reliability of location |
Poor Compiled at 1:24,000 scale. |
| Length (km) | 68 km. |
| Average strike | N17°W |
| Sense of movement | Right lateral |
| Dip Direction | V; W |
| Historic earthquake | |
| Most recent prehistoric deformation | latest Quaternary (<15 ka) |
| Slip-rate category | Greater than 5.0 mm/yr |
| References |
Bennett, R.A., Rodi, W., and Reilinger, R.E., 1996, Global positioning system constraints on fault slip rates in Southern California and northern Baja, Mexico: Journal of Geophysical Research, v. 101, no. B10, p. 21,943-21,960. Division of Mines and Geology, 1990, Official map of earthquake fault zones, Alamorio quadrangle: California Department of Conservation, Division of Mines and Geology, scale 1:24,000. Division of Mines and Geology, 1990, Official map of earthquake fault zones, Holtville West quadrangle: California Department of Conservation, Division of Mines and Geology, scale 1:24,000. Elders, W.A., Rex, R.W., Meidav, T., Robinson, P.T., and Biehler, S., 1972, Crustal spreading in southern California: Science, v. 178, p. 15-24. Fuis, G.S., and Kohler, W.M., 1984, Crustal structure and tectonics of the Imperial Valley region, California, in Rigsby, C.A., ed., The Imperial Basin—Tectonics, sedimentation and thermal aspects: Society of Economic Paleontologists and Mineralogists, Pacific Section, Annual Meeting, field trip guidebook, v. 40, p. 1-13. Hart, E.W., 1981, Preliminary map of October 1979 fault rupture, Imperial and Brawley faults, Imperial County California: California Division of Mines and Geology Open-File Report 81-5, scale 1:24,000. Jennings, C.W., 1994, Fault activity map of California and adjacent areas, with locations of recent volcanic eruptions: California Division of Mines and Geology Geologic Data Map 6, 92 p., 2 pls., scale 1:750,000. Johnson, C.E., 1979, CEDAR—An approach to the computer automation of short-period local seismic networks; Seismotectonics of the Imperial Valley of southern California: Pasadena, California Institute of Technology, unpublished Ph.D. dissertation, 343 p. Johnson, C.E., and Hadley, D.M., 1976, Tectonic implications of the Brawley earthquake swarm, Imperial Valley, California: Bulletin of the Seismological Society of America, v. 66, p. 1133-1144. Johnson, C.E., and Hill, D.P., 1982, Seismicity of Imperial Valley, in The Imperial Valley, California earthquake of October 15, 1979: U.S. Geological Survey Professional Paper 1254, p. 15-24. Keller, B., 1979, Imperial Valley earthquake swarms, in Crowell, J.C., and Sylvester, A.G., eds., Tectonics of the juncture between the San Andreas fault system and the Salton trough, southeastern California—A guidebook: Santa Barbara, Department of Geological Sciences, University of California, p. 53-56. Meidav, T., 1968, Structural characteristics of the Salton Sea, California [abs.]: Eos, Transactions of the American Geophysical Union, v. 49, no. 4, p. 758. Nicholson, C., Williams, P., Seeber, L., and Sykes, L.R., 1985, Seismicity and fault kinematics along the Brawley Seismic Zone and adjacent regions [abs.]: Eos, Transactions of the American Geophysical Union, v. 66, no. 46, p. 953. Reilinger, R., 1984, Coseismic and postseismic vertical movements associated with the 1940 M7.1 Imperial Valley, California, earthquake: Journal of Geophysical Research, v. 89, no. B6, p. 4,531-4,537. Savage, J.C., Goodreau, D., and Prescott, W.H., 1974, Possible fault slip on the Brawley fault, Imperial Valley California: Bulletin of the Seismological Society of America, v. 64, no. 713-715. Sharp, R.V., 1976, Surface faulting in Imperial Valley during the earthquake swarm of January-February, 1975: Bulletin of the Seismological Society of America, v. 66, p. 1,145-1,154. Sharp, R.V., Lienkaemper, J.J., Bonilla, M.G., Burke, D.B., Fox, B.F., Herd, D.G., Miller, D.M., Morton, D.M., Ponti, D.J., Rymer, M.J., Tinsley, J.C., Yount, J.C., Kahle, J.E., Hart, E.W., and Sieh, K.E., 1982, Surface faulting in the central Imperial Valley, in The Imperial Valley, California, earthquake of October 15, 1979: U.S. Geological Survey Professional Paper 1254, p. 119-143. Teilman, M., Weiss, R.B., and Meidav, T., 1977, Imperial Valley fault compilation: Transactions, Geothermal Resources Council, v. 1, p. 289-290. Working Group on California Earthquake Probabilities, 1995, Seismic hazards in southern California—Probable earthquakes, 1994 to 2024: Bulletin of the Seismological Society of America, v. 85, no. 2, p. 379-439. |