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Imperial Valley earthquake, 1979

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Journal Article
Published: 01 August 1983
Bulletin of the Seismological Society of America (1983) 73 (4): 1203–1224.
...J. Langbein; A. McGarr; M. J. S. Johnston; P. W. Harsh abstract A geodetic trilateration network comprising 54 baselines was established around the northern part of the Imperial fault beginning 12 days after the Imperial Valley earthquake of 15 October 1979, and the line lengths were repeatedly...
Journal Article
Published: 01 December 1982
Bulletin of the Seismological Society of America (1982) 72 (6A): 1927–1956.
...Ralph J. Archuleta abstract Gross features of the rupture mechanism of the 1979 Imperial Valley earthquake ( M L = 6.6) are inferred from qualitative analysis of near-source ground motion data and observed surface rupture. A lower bound on the event's seismic moment of 2.5 × 10 25 dyne-cm...
Journal Article
Published: 01 December 1994
Bulletin of the Seismological Society of America (1994) 84 (6): 1770–1785.
...M.-P. Bouin; P. Bernard Abstract This article illustrates the use of near-source S -wave polarization analyses for constraining some rupture parameters of large earthquakes, in the particular case of the 1979 Imperial Valley mainshock. The ten SMA1 strong-motion records closest to the source have...
Journal Article
Published: 01 May 1988
Environmental and Engineering Geoscience (1988) xxv (2): 235–247.
...GARY M. NORRIS Abstract The Meloland Overcrossing is located 0.3 mi from the Imperial fault and was shaken by ground surface motions of up to 0.3 g during the Imperial Valley earthquake of 1979 (magnitude M = 6.4). While there was no significant damage to this instrumented highway bridge or any...
Journal Article
Published: 01 June 1985
Bulletin of the Seismological Society of America (1985) 75 (3): 689–708.
...Hsui-Lin Liu; Donald V. Helmberger Abstract The well-recorded strong ground motion data for the 23:19 aftershock of the 15 October 1979 Imperial Valley earthquake provide a good opportunity to study the high-frequency source characteristics and the path effects at near-source distances. The best...
Journal Article
Published: 01 December 1984
Bulletin of the Seismological Society of America (1984) 74 (6): 2083–2114.
...Paul Spudich; Edward Cranswick Abstract The 1979 Imperial Valley, California, earthquake ( M s = 6.9) was recorded on the El Centro differential array, a 213-m-long linear array of 5 three-component digital accelerometers 5.6 km from the nearest tectonic surface rupture. Although absolute time...
Journal Article
Published: 01 December 1984
Bulletin of the Seismological Society of America (1984) 74 (6): 2413–2433.
...Martin A. Slade; Gregory A. Lyzenga; Arthur Raefsky Abstract Synthesis of geodetic and seismological results for the 1979 Imperial Valley earthquake is approached using three-dimensional finite element modeling techniques. The displacements and stresses are calculated elastically throughout...
Journal Article
Published: 01 December 1983
Bulletin of the Seismological Society of America (1983) 73 (6A): 1553–1583.
...Stephen H. Hartzell; Thomas H. Heaton Abstract A least-squares point-by-point inversion of strong ground motion and teleseismic body waves is used to infer the fault rupture history of the 1979 Imperial Valley, California, earthquake. The Imperial fault is represented by a plane embedded in a half...
Journal Article
Published: 01 August 1983
Bulletin of the Seismological Society of America (1983) 73 (4): 1161–1171.
...Thomas H. Heaton; John G. Anderson; Peter T. German abstract We recognized a number of ground failures along the south bank of the New River north of Brawley, California, following the 15 October 1979 Imperial Valley, California, earthquake sequence. The zone includes a large pond and numerous sand...
Journal Article
Published: 01 December 1982
Bulletin of the Seismological Society of America (1982) 72 (6A): 1969–2001.
... in the data is quantitatively stated. The inversion methodology is applied to 77 components of near-field ground acceleration recorded during the 15 October 1979 Imperial Valley earthquake. The faulting is constrained to propagate bilaterally away from the epicenter at an average velocity of 90 per cent...
Journal Article
Published: 01 December 1982
Bulletin of the Seismological Society of America (1982) 72 (6A): 2377–2380.
... , Earthquake Eng. Struct. Dyn. 3 , 365 - 374 . Porcella R. Mattiesen R. (1979) Strong motion records, October 15, 1979 Imperial Valley earthquake , U.S. Geol. Surv. , Open-File Rept. 79-1654 , 42 pp. Smith S. W. Ehrenberg J. E. Hernandez E. N...
Journal Article
Published: 01 December 1982
Bulletin of the Seismological Society of America (1982) 72 (6A): 1957–1968.
...Mansour Niazi abstract Two sets of observations obtained during the 15 October 1979 Imperial Valley earthquake, M S 6.9, are presented. The data suggest different dynamic characteristics of the source when viewed in different frequency bands. The first data set consists of the observed residuals...
Journal Article
Published: 01 April 1982
Bulletin of the Seismological Society of America (1982) 72 (2): 571–596.
...Stephen Hartzell; Donald V. Helmberger Abstract Twelve three-component strong-motion displacement records are modeled for the 1979 Imperial Valley earthquake to recover the distribution of slip on the Imperial fault plane. The final model, for which point source responses are calculated...
Journal Article
Published: 01 April 1982
Bulletin of the Seismological Society of America (1982) 72 (2): 663–668.
... associated with the Imperial Valley earthquake of 15 October, 1979 (abstract) , Earthquake Notes 50 , 51 . Reyes Zamora C. A. (1980) . Reporte Preliminar del Sismo “Victoria,” Baja Norte del 8 de Junion de 1980 ( M L = 6.7 , Informe Technico GEO 80-02 , Dept. de Geofisica...
Journal Article
Published: 01 February 1982
Bulletin of the Seismological Society of America (1982) 72 (1): 237–258.
...Stewart W. Smith; John E. Ehrenberg; E. Norman Hernandez abstract Two methods of analysis have been applied to the El Centro differential array data from the 1979 Imperial Valley earthquake. Spectral ratios of array averages were developed as one way of estimating the spatial averaging of ground...
Journal Article
Published: 01 December 1981
Bulletin of the Seismological Society of America (1981) 71 (6): 2011–2038.
... ground motions from the 1979 Imperial Valley earthquake: comparison with data from previous earthquakes , in The Imperial Valley, California Earthquake of October 15, 1979 , U.S. Geol. Surv. Profess. Paper (in press) . Boore D. M. Stierman D. J. (1976) . Source parameters...
Journal Article
Published: 01 April 2013
Bulletin of the Seismological Society of America (2013) 103 (2A): 629–640.
...  6.6 Borrego Mountain earthquake [ Clark, 1972 ]; the 1979 M w  6.6 Imperial Valley earthquake [ Sharp, 1982 ]; the 1987 M w  6.6 Superstition Hills earthquake [ McGill et al. , 1989 ]; the 1992 M w  7.3 Landers earthquake [ Sieh et al. , 1993 ]; the 1999 M w  7.1 Hector Mine, M w  7.4...
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Journal Article
Published: 01 April 1986
Bulletin of the Seismological Society of America (1986) 76 (2): 421–438.
... 1979 and 1981. The relocated seismicity shows that there was an increase in seismicity in regions northeast of the Imperial fault 5 to 6 yr prior to the 1940 ( M s = 7.1) Imperial Valley earthquake. A study of intensity reports for felt earthquakes prior to 1932 also suggests an increase in seismicity...
Journal Article
Published: 01 October 1984
Bulletin of the Seismological Society of America (1984) 74 (5): 1743–1755.
... is determined, we examine seismicity rates in this region prior to the Imperial Valley earthquake of 15 October 1979. The source area of the earthquake shows a possible precursory quiescence which started during July 1979. The time of this rate decrease is close to the time of a change in the seismic...
Journal Article
Published: 01 October 1984
Bulletin of the Seismological Society of America (1984) 74 (5): 1509–1527.
... Love waves, were a factor of two to three greater than the moments estimated from the strong-motion records. As a comparison to the Anza events, source parameters were also determined from strong-motion records for an immediate aftershock ( M L 5.0) of the 1979 Imperial Valley earthquake. The seismic...