qfaults web comp As of January 12, 2017, the USGS maintains a limited number of metadata fields that characterize the Quaternary faults and folds of the United States. For the most up-to-date information, please refer to the interactive fault map.

Archived report (descriptions no longer maintained)

Imperial fault (Class A) No. 132

Last Review Date: 1999-04-01

County(s) and State(s) IMPERIAL COUNTY, CALIFORNIA
Physiographic province(s) BASIN AND RANGE
Reliability of location Good
Compiled at 1:24,000 scale.
Length (km) 46 km.
Average strike N29°W
Sense of movement Right lateral
Dip Direction V
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.

Buwalda, J.P., and Richter, C.F., 1941, Imperial Valley earthquake of May 18, 1940: Geological Society of America Bulletin, v. 52, no. 12, p. 1944-1945.

Clark, M.M., Harms, K.H., Lienkaemper, J.J., Harwood, D.S., Lajoie, K.R., Matti, J.C., Perkins, J.A., Rymer, M.J., Sarna-Wojcicki, A.M., Sharp, R.V., Sims, J.D., Tinsley, J.C., III, and Ziony, J.I., 1984, Preliminary slip rate table and map of late Quaternary faults of California: U.S. Geological Survey Open-File Report 84-106, 12 p., 5 plates, scale 1:1,000,000.

Division of Mines and Geology, 199, Official map of Earthquake Fault Zones, Calexico 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.

Division of Mines and Geology, 1990, Official map of Earthquake Fault Zones, Bonds Corner 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, Brawley 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, El Centro 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.

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., 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.

King, N.E., and Thatcher, W.R., 1998, The coseismic slip distribution of the 1940 and 1979 Imperial Valley, California, earthquakes and their implications: Journal of Geophysical Research, v. 103, no. B8, p. 18,069-18,086.

Petersen, M.D., Bryant, W.A., Cramer, C.H., Cao, T., Reichle, M.S., Frankel, A.D., Lienkaemper, J.J., McCrory, P.A., and Schwartz, D.P., 1996, Probabilistic seismic hazard assessment for the State of California: California Department of Conservation, Division of Mines and Geology Open-File Report 96-08 (also U.S. Geological Open-File Report 96-706), 33 p.

Sharp, R.V., 1972, Tectonic setting of the Salton Trough, in The Borrego Mountain earthquake of April 9, 1968: U.S. Geological Survey Professional Paper 787, p. 3-15.

Sharp, R.V., 1978, Salton trough tectonics: U.S. Geological Survey, Summaries of Technical Reports, National Earthquake Hazards Reduction Program, v. 5, p. 40-42.

Sykes, L.R., and Nishenko, S.P., 1984, Probabilities of occurrence of large plate rupturing earthquakes for the San Andreas, San Jacinto, and Imperial faults, California: Journal of Geophysical Research, v. 89, no. B7, p. 5905-5927.

Thomas, A.P., and Rockwell, T.R., 1996, A 300- to 550-year history of slip on the Imperial fault near the U.S.-Mexico border-Missing slip at the Imperial fault bottleneck.: Journal of Geophysical Research, v. 101, no. B3, p. 5,987-5,997.

Toppozada, T.R., and Parke, D.L., 1982, Areas damaged by California earthquakes, 1900-1949: California Division of Mines and Geology Open-File Report 82-17, 65 p.

Wesnousky, S.G., 1986, Earthquakes, Quaternary faults, and seismic hazards in California: Journal of Geophysical Research, v. 91, no. B12, p. 12,587-12,631.

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.