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Elmore Ranch earthquake 1987

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Journal Article

Flexural-slip folding along the Eastern Elmore Ranch fault in the Superstition Hills earthquake sequence of November 1987

Ralph E. Klinger, Thomas K. Rockwell
Published: 01 April 1989
Bulletin of the Seismological Society of America (1989) 79 (2): 297–303.
DOI: https://doi.org/10.1785/BSSA0790020297
... FAULT IN THE SUPERSTITION HILLS EARTHQUAKE SEQUENCE OF NOVEMBER 1987 RALPH E. KLINGER AND THOMAS K. ROCKWELL ABSTRACT Co-seismic flexural-slip folding of a small anticline along the Eastern Elmore Ranch fault associated with the Superstition Hills earthquake sequence demon- strates that variations...
View PDF for article title, Flexural-slip folding along the Eastern <span class="search-highlight">Elmore</span> <span class="search-highlight">Ranch</span> fault in the Superstition Hills <span class="search-highlight">earthquake</span> sequence of November <span class="search-highlight">1987</span>
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Journal Article

The Elmore Ranch and Superstition Hills earthquakes of 24 November 1987: Introduction to the special issue

Thomas C. Hanks, Clarence R. Allen
Published: 01 April 1989
Bulletin of the Seismological Society of America (1989) 79 (2): 231–238.
DOI: https://doi.org/10.1785/BSSA0790020231
... , 75 - 84 . Klinger R. E. Rockwell T. K. (1989) . Flexural-slip folding along the eastern Elmore Ranch fault in the Superstition Hills earthquake sequence of November 1987 , Bull...
View PDF for article title, The <span class="search-highlight">Elmore</span> <span class="search-highlight">Ranch</span> and Superstition Hills <span class="search-highlight">earthquakes</span> of 24 November <span class="search-highlight">1987</span>: Introduction to the special issue
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Journal Article

Slip on the Superstition Hills fault and on nearby faults associated with the 24 November 1987 Elmore Ranch and Superstition Hills earthquakes, southern California

Sally F. McGill, Clarence R. Allen, Kenneth W. Hudnut, David C. Johnson, Wayne F. Miller, Kerry E. Sieh
Published: 01 April 1989
Bulletin of the Seismological Society of America (1989) 79 (2): 362–375.
DOI: https://doi.org/10.1785/BSSA0790020362
...Sally F. McGill; Clarence R. Allen; Kenneth W. Hudnut; David C. Johnson; Wayne F. Miller; Kerry E. Sieh Abstract Alignment arrays and creepmeters spanning several faults in southern California recorded slip associated with the 24 November 1987 Elmore Ranch and Superstition Hills earthquakes...
View PDF for article title, Slip on the Superstition Hills fault and on nearby faults associated with the 24 November <span class="search-highlight">1987</span> <span class="search-highlight">Elmore</span> <span class="search-highlight">Ranch</span> and Superstition Hills <span class="search-highlight">earthquakes</span>, southern California
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Journal Article

Surface faulting along the Superstition Hills fault zone and nearby faults associated with the earthquakes of 24 November 1987

R. V. Sharp, K. E. Budding, J. Boatwright, M. J. Ader, M. G. Bonilla, M. M. Clark, T. E. Fumal, K. K. Harms, J. J. Lienkaemper, D. M. Morton, B. J. O'Neill, C. L. Ostergren, D. J. Ponti, M. J. Rymer, J. L. Saxton, J. D. Sims
Published: 01 April 1989
Bulletin of the Seismological Society of America (1989) 79 (2): 252–281.
DOI: https://doi.org/10.1785/BSSA0790020252
...R. V. Sharp; K. E. Budding; J. Boatwright; M. J. Ader; M. G. Bonilla; M. M. Clark; T. E. Fumal; K. K. Harms; J. J. Lienkaemper; D. M. Morton; B. J. O'Neill; C. L. Ostergren; D. J. Ponti; M. J. Rymer; J. L. Saxton; J. D. Sims Abstract The M 6.2 Elmore Desert Ranch earthquake of 24 November 1987...
View PDF for article title, Surface faulting along the Superstition Hills fault zone and nearby faults associated with the <span class="search-highlight">earthquakes</span> of 24 November <span class="search-highlight">1987</span>
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Journal Article

Estimates of velocity structure and source depth using multiple P waves from aftershocks of the 1987 Elmore Ranch and Superstition Hills, California, earthquakes

Jim Mori
Published: 01 April 1991
Bulletin of the Seismological Society of America (1991) 81 (2): 508–523.
DOI: https://doi.org/10.1785/BSSA0810020508
... USING MULTIPLE P WAVES FROM AFTERSHOCKS OF THE 1987 ELMORE RANCH AND SUPERSTITION HILLS, CALIFORNIA, EARTHQUAKES BY JIM MORI ABSTRACT Event record sections, which are constructed by plotting seismograms from many closely spaced earthquakes recorded on a few stations, show multiple free-surface...
View PDF for article title, Estimates of velocity structure and source depth using multiple P waves from aftershocks of the <span class="search-highlight">1987</span> <span class="search-highlight">Elmore</span> <span class="search-highlight">Ranch</span> and Superstition Hills, California, <span class="search-highlight">earthquakes</span>
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Journal Article

A re-examination of historic earthquakes in the San Jacinto fault zone, California

Allison L. Bent, Donald V. Helmberger
Published: 01 December 1991
Bulletin of the Seismological Society of America (1991) 81 (6): 2289–2309.
DOI: https://doi.org/10.1785/BSSA0810062289
... by comparing the waveforms and travel times with recent earthquakes in the region. All the events are in the M L 5.5 to 6.5 range. The historic earthquakes of interest occurred in 1937, 1942, and 1954. We use the 1968 Borrego Mountain, 1969 Coyote Mountain, and 1987 Elmore Ranch earthquakes as calibration...
View PDF for article title, A re-examination of historic <span class="search-highlight">earthquakes</span> in the San Jacinto fault zone, California
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Image
Generalized fault map of the southern part of the Salton Trough. Surface ruptures indicated for the 1892 (M 7¼), 1934 (ML 7.1), 1940 (Mw 6.9), 1968 (Mw 6.5), 1979 (Mw 6.4), and 1987 (Mw 6.2 and 6.6) earthquakes. ERF, Elmore Ranch fault; SHF, Superstition Hills fault.

Generalized fault map of the southern part of the Salton Trough. Surface ru...

Published: 01 December 2006
Figure 1. Generalized fault map of the southern part of the Salton Trough. Surface ruptures indicated for the 1892 ( M 7¼), 1934 ( M L 7.1), 1940 ( M w 6.9), 1968 ( M w 6.5), 1979 ( M w 6.4), and 1987 ( M w 6.2 and 6.6) earthquakes. ERF, Elmore Ranch fault; SHF, Superstition Hills
Image
Characteristic CHIRP profile across the Niland fault zone (see Fig. 2C for location) and overlay plot of interpreted soil behavior types (SBT and normalized SBT [SBTn]) from cone penetrometer test site 15 (details are reported by URS Corporation, 2004). Offset reflections (a and b) reveal the most recent and penultimate growth events, respectively. Distinctive seafloor scarps suggest displacement was recent, possibly coincident with the Elmore Ranch earthquake in 1987 (Hudnut et al., 1989b). Imaging of older growth events is obscured by shallow gas.

Characteristic CHIRP profile across the Niland fault zone (see Fig. 2C fo...

Published: 17 June 2022
) reveal the most recent and penultimate growth events, respectively. Distinctive seafloor scarps suggest displacement was recent, possibly coincident with the Elmore Ranch earthquake in 1987 ( Hudnut et al., 1989b ). Imaging of older growth events is obscured by shallow gas.
Image
Subset of USGS Salton trilateration network reoccupied using survey-mode GPS. Beach balls indicate the mainshock focal mechanisms for the Mw 5.7 1981 Westmorland (WM81), Mw 6.2 1987 Elmore Ranch (ER87), and Mw 6.6 1987 Superstition Hills (SH87) earthquakes and are plotted at the mainshock epicenters. Thin solid lines show the San Andreas fault (SAF), San Jacinto fault zone (SJFZ), Elsinore fault (EF), and Imperial fault (IF). Heavy solid lines represent the fault planes used for dislocation modeling of coseismic offsets (see text), and Brawley is shown for reference.

Subset of USGS Salton trilateration network reoccupied using survey-mode GP...

Published: 01 December 2003
Figure 2. Subset of USGS Salton trilateration network reoccupied using survey-mode GPS. Beach balls indicate the mainshock focal mechanisms for the M w 5.7 1981 Westmorland (WM81), M w 6.2 1987 Elmore Ranch (ER87), and M w 6.6 1987 Superstition Hills (SH87) earthquakes and are plotted
Journal Article

Slip on the Elmore Ranch fault during the past 330 years and its relation to slip on the Superstition Hills fault

K. W. Hudnut, L. Seeber, T. Rockwell
Published: 01 April 1989
Bulletin of the Seismological Society of America (1989) 79 (2): 330–341.
DOI: https://doi.org/10.1785/BSSA0790020330
... follows cross-fault rupture are possible. INTRODUCTION The Elmore Ranch fault (Fig. 1) slipped at the surface in association with the Superstition Hills earthquake sequence of 24 November 1987 (Hudnut et al., 1989b). The Elmore Ranch fault has several strands trending N30 ° to 45°E (Fig. 2...
View PDF for article title, Slip on the <span class="search-highlight">Elmore</span> <span class="search-highlight">Ranch</span> fault during the past 330 years and its relation to slip on the Superstition Hills fault
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Journal Article

Surface ruptures on cross-faults in the 24 November 1987 Superstition Hills, California, earthquake sequence

K. Hudnut, L. Seeber, T. Rockwell, J. Goodmacher, R. Klinger, S. Lindvall, R. McElwain
Published: 01 April 1989
Bulletin of the Seismological Society of America (1989) 79 (2): 282–296.
DOI: https://doi.org/10.1785/BSSA0790020282
.... (1989) . Flexural-slip folding along the eastern Elmore Ranch fault in the Superstition Hills earthquake sequence of November 1987 , Bull. Seism. Soc. Am. 79 , 297 - 303 . Lomnitz C. Mooser F...
View PDF for article title, Surface ruptures on cross-faults in the 24 November <span class="search-highlight">1987</span> Superstition Hills, California, <span class="search-highlight">earthquake</span> sequence
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Journal Article

Teleseismic source parameters and rupture characteristics of the 24 November 1987, Superstition Hills earthquake

Lorraine J. Hwang, Harold Magistrale, Hiroo Kanamori
Published: 01 February 1990
Bulletin of the Seismological Society of America (1990) 80 (1): 43–56.
DOI: https://doi.org/10.1785/BSSA0800010043
..., 1979 , U.S. Geol. Surv. Profess. Pap. 1254 , 25 - 50 . Hanks T. C. Allen C. R. (1989) . The Elmore Ranch and Superstition Hills earthquakes of 24 November 1987: introduction...
View PDF for article title, Teleseismic source parameters and rupture characteristics of the 24 November <span class="search-highlight">1987</span>, Superstition Hills <span class="search-highlight">earthquake</span>
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Journal Article

The 1987 Superstition Hills earthquake sequence: Strains and tilts at Piñon Flat Observatory

Duncan Carr Agnew, Frank K. Wyatt
Published: 01 April 1989
Bulletin of the Seismological Society of America (1989) 79 (2): 480–492.
DOI: https://doi.org/10.1785/BSSA0790020480
... strainmeter records, we predicted these from tidal constants based on the analysis by Agnew (1979) of strain data from 1973 to 1978. The residual showed energy at periods of 1, 2, and 3 cycles/day, presumably because of thermoelastic Elmore Ranch & Superstition Hills Earthquakes - 1987 200 80 EW Laser Strain...
View PDF for article title, The <span class="search-highlight">1987</span> Superstition Hills <span class="search-highlight">earthquake</span> sequence: Strains and tilts at Piñon Flat Observatory
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Journal Article

Mechanical Models Suggest Fault Linkage through the Imperial Valley, California, U.S.A.

Jacob H. Dorsett, Elizabeth H. Madden, Scott T. Marshall, Michele L. Cooke
Published: 11 June 2019
Bulletin of the Seismological Society of America (2019) 109 (4): 1217–1234.
DOI: https://doi.org/10.1785/0120180303
...  6.6 rupture on the Imperial fault ( Sharp, 1982 ), and the 1987 M w  6.2 earthquake on the Elmore Ranch fault ( Hudnut et al. , 1989 ), which was followed by an M w  6.6 on the Superstition Hills fault the following day ( McGill et al. , 1989 ). Long‐term deformation...
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View PDF for article title, Mechanical Models Suggest Fault Linkage through the Imperial Valley, California, U.S.A.
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Includes: Supplemental Content
Journal Article

Index to volume 79

Published: 01 December 1989
Bulletin of the Seismological Society of America (1989) 79 (6): 2041–2060.
DOI: https://doi.org/10.1785/BSSA0790062041
... Region 1520 Aki-Larner Method, A Note on the Rayleigh Hypothesis and the, by Francisco J. Shnchez-Sesma, Michel Campillo, and Kojiro Irikura 1995 Allen, Clarence R. and Thomas C. Hanks--The Elmore Ranch and Superstition Hills Earthquakes of 24 November 1987: Introduction to the Special Issue...
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Journal Article

Earthquake Demand Energy Attenuation Model for Liquefaction Potential Assessment

Mohammad H. Baziar, Hamid Rostami
Published: 01 May 2017
Earthquake Spectra (2017) 33 (2): 757–780.
DOI: https://doi.org/10.1193/030816EQS037M
... various studies on the Wildlife site after the 1987 earthquakes, and reached a consensus that while the Superstition Hills earthquake did cause liquefaction at the Wildlife site, the Elmore Ranch earthquake did not cause liquefaction. Figure 18 depicts the recorded downhole array accelerations, excess...
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View PDF for article title, <span class="search-highlight">Earthquake</span> Demand Energy Attenuation Model for Liquefaction Potential Assessment
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Journal Article

Salton Trough Regional Deformation Estimated from Combined Trilateration and Survey-Mode GPS Data

Greg Anderson, Duncan C. Agnew, Hadley O. Johnson
Published: 01 December 2003
Bulletin of the Seismological Society of America (2003) 93 (6): 2402–2414.
DOI: https://doi.org/10.1785/0120030014
...Figure 2. Subset of USGS Salton trilateration network reoccupied using survey-mode GPS. Beach balls indicate the mainshock focal mechanisms for the M w 5.7 1981 Westmorland (WM81), M w 6.2 1987 Elmore Ranch (ER87), and M w 6.6 1987 Superstition Hills (SH87) earthquakes and are plotted...
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View PDF for article title, Salton Trough Regional Deformation Estimated from Combined Trilateration and Survey-Mode GPS Data
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Journal Article

Rupture process of the 1987 Superstition Hills earthquake from the inversion of strong-motion data

David J. Wald, Donald V. Helmberger, Stephen H. Hartzell
Published: 01 October 1990
Bulletin of the Seismological Society of America (1990) 80 (5): 1079–1098.
DOI: https://doi.org/10.1785/BSSA0800051079
...David J. Wald; Donald V. Helmberger; Stephen H. Hartzell Abstract A pair of significant earthquakes occurred on conjugate faults in the western Imperial Valley involving the through-going Superstition Hills fault and the Elmore Ranch cross fault. The first event was located on the Elmore Ranch...
View PDF for article title, Rupture process of the <span class="search-highlight">1987</span> Superstition Hills <span class="search-highlight">earthquake</span> from the inversion of strong-motion data
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Journal Article

Liquefaction, Ground Oscillation, and Soil Deformation at the Wildlife Array, California

Thomas L. Holzer, T. Leslie Youd
Published: 01 June 2007
Bulletin of the Seismological Society of America (2007) 97 (3): 961–976.
DOI: https://doi.org/10.1785/0120060156
... and 6Cg. The Wildlife Liquefaction Array triggered four times during the Superstition Hills earthquake sequence of 23–24 November 1987, including a M 6.2 foreshock approximately 9 hours before the mainshock. This foreshock was named the Elmore Ranch earthquake. Only the M 6.6 mainshock...
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View PDF for article title, Liquefaction, Ground Oscillation, and Soil Deformation at the Wildlife Array, California
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Journal Article

Hysteretic and Dilatant Behavior of Cohesionless Soils and Their Effects on Nonlinear Site Response: Field Data Observations and Modeling

Luis Fabián Bonilla, Ralph J. Archuleta, Daniel Lavallée
Published: 01 December 2005
Bulletin of the Seismological Society of America (2005) 95 (6): 2373–2395.
DOI: https://doi.org/10.1785/0120040128
... at various depths ( Holzer et al. , 1989 ). Critically, the array also recorded the M L 6.2 23 November 1987 Elmore Ranch earthquake that occurred about 12 hours before the Superstition Hills event. The Elmore Ranch earthquake did not produce any pore pressure record. The acceleration time...
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View PDF for article title, Hysteretic and Dilatant Behavior of Cohesionless Soils and Their Effects on Nonlinear Site Response: Field Data Observations and Modeling
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