The Palos Verdes terraces, California: Bathtub rings from a buried reverse fault

Ward, Steven N.; Valensise, Gianluca

doi:10.1029/93jb03362

Cited by 65 publications

(62 citation statements)

References 15 publications

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“…S 2 increase: increase in reclaimed land. Similar evolution is known in Palos Verdes Hills, California, US (Szabo and Vedder, 1971;Lajoie et al, 1991;Ludwig et al, 1992;Muhs et al, 1992;Ward and Valensise, 1994;Orme, 1998). in northwestern US (Oregon and California), in Japan (at Kamikita), or in Italy (at Crotone and Sibari). MIS 5e coastal uplift rates as a function of the respective geodynamical settings are presented below (i.e.…”

Section: Last Interglacial Mis 5ementioning

confidence: 69%

Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Pedoja

Husson

Johnson

et al. 2014

Earth-Science Reviews

164

195

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. Many coasts feature sequences of Quaternary and Neogene shorelines that are shaped by a combination of sealevel oscillations and tectonics. We compiled a global synthesis of sea-level changes for the following highstands: MIS 1, MIS 3, MIS 5e and MIS 11. Also, we date the apparent onset of sequences of paleoshorelines either from published data or tentatively extrapolating an age for the uppermost, purported oldest shoreline in each sequence. Including the most documented MIS 5e benchmark, we identify 926 sequences out of which 185 also feature Holocene shorelines. Six areas are identified where elevations of the MIS 3 shorelines are known, and 31 feature elevation data for MIS 11 shorelines. Genetic relationships to regional geodynamics are further explored based on the elevations of the MIS 5e benchmark. Mean apparent uplift rates range from 0.01 ± 0.01 mm/yr (hotspots) to 1.47 ± 0.08 mm/yr (continental collision). Passive margins appear as ubiquitously uplifting, while tectonic segmentation is more important on active margins. From the literature and our extrapolations, we infer ages for the onset of formation for~180 coastal sequences. Sea level fingerprinting on coastal sequences started at least during mid Miocene and locally as early as Eocene. Whether due to the changes in the bulk volume of seawater or to the temporal variations in the shape of ocean basins, estimates of eustasy fail to explain the magnitude of the apparent sea level drop. Thus, vertical ground motion is invoked, and we interpret the longlasting development of those paleoshore sequences as the imprint of glacial cycles on globally uplifted margins in response to continental compression. The geomorphological expression of the sequences matches the amplitude and frequency of glacial cyclicity. From middle Pleistocene to present-day, moderately fast (100,000 yrs) oscillating sea levels favor the development of well identified strandlines that are distinct from one another. Pliocene and Lower Pleistocene strandlines associated with faster cyclicity (40,000 yrs) are more compact and easily merge into rasas, whereas older Cenozoic low-frequency eustatic changes generally led to widespread flat-lying coastal plains.

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Section: Last Interglacial Mis 5ementioning

confidence: 69%

Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Pedoja

Husson

Johnson

et al. 2014

Earth-Science Reviews

164

195

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“…Thus a more accurate estimate of recurrence times for locally generated tsunamis may be provided by dividing the maximum uplift for the earthquake scenario by the average rate of uplift of Santa Catalina Island. Similar analyses have been made using uplift of the Palos Verdes Hills to estimate the slip rate on the Palos Verdes fault zone (Ward and Valensise 1994) and of the Santa Cruz Mountains (Valensise and Ward 1990) for the recurrence of Loma Prieta-type earthquakes.…”

Section: Tsunami Recurrence and Statisticsmentioning

confidence: 93%

Tsunami Hazards Associated with the Catalina Fault in Southern California

Legg¹,

Borrero

Synolakis

2004

Earthquake Spectra

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We investigate the tsunami hazard associated with the Catalina Fault off-shore of southern California. Realistic faulting parameters are used to match coseismic displacements to existing sea floor topography. Several earthquake scenarios with moment magnitudes ranging between 7.0 and 7.6 are used as initial conditions for tsunami simulations, which predict runup of up to 4 m. Normalizing runup with the maximum uplift identifies areas susceptible to tsunami focusing and amplification. Several harbors and ports in southern California lie in areas where models predict tsunami amplification. Return periods are estimated by dividing the modeled seafloor uplift per event by the observed total uplift of the Santa Catalina Island platform multiplied by the time since the uplift began. The analysis yields return periods between 2,000 to 5,000 years for the Catalina Fault alone, and 200 to 500 years when all offshore faults are considered. [DOI: 10.1193/1.1773592

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“…Kinematic models satisfy the equations of compatibility but do not satisfy force equilibrium equations, nor do they follow the constitutive laws of deformation. Fault dislocation models, such as the models employed in this study, readily produce both kinematically compatible and mechanically robust uplift fields that can be compared with geodetic and geologic data to determine fault orientation, shape, and slip rate (Stein et al, 1988;Ward and Valensise, 1994;Myers et al, 2003;Savage and Cooke, 2003;Griffith and Cooke, 2004;Savage and Cooke, 2004;Argus et al, 2005).…”

Section: Rock Uplift Patterns Within the Los Angeles Basinmentioning

confidence: 99%

Using Vertical Rock Uplift Patterns to Constrain the Three-Dimensional Fault Configuration in the Los Angeles Basin

Meigs¹,

Cooke²,

Marshall³

2008

Bulletin of the Seismological Society of America

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The Palos Verdes terraces, California: Bathtub rings from a buried reverse fault

Cited by 65 publications

References 15 publications

Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Tsunami Hazards Associated with the Catalina Fault in Southern California

Using Vertical Rock Uplift Patterns to Constrain the Three-Dimensional Fault Configuration in the Los Angeles Basin

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