DOI: 10.1785/bssa0680030677. Strong-motion accelerograms of the Oroville aftershocks and peak acceleration data

Strong-motion accelerograms of the Oroville aftershocks and peak acceleration data

10.1785/bssa0680030677

Crossref journal-article

Seismological Society of America (SSA)

Bulletin of the Seismological Society of America (790)

Abstract

abstract In the 90 days following the Oroville, California, earthquake (August 1, 1975; ML = 5.7), 313 positively identified strong-motion accelerograms were obtained for 86 different aftershocks. This set of records samples a wide range of magnitude (1.8 ≦ ML ≦ 5.2), focal depth (2 ≦ h ≦ 12 km), and site conditions (Holocene alluvium to Mesozoic crystalline basement). Most of these records were written at hypocentral distances R ≦ 15 km, a distance range for which relatively few strong-motion accelerograms had previously been available. Equally significant is the completeness of coverage (seven or more positively identified records) available for each of 12 well-recorded aftershocks (2.8 ≦ ML ≦ 4.9). One hundred and sixty-five peak acceleration values at 6.7 ≦ R ≦ 15 km for 33 aftershocks (3.0 ≦ ML ≦ 4.9) are the basis of an investigation of the dependence of peak acceleration on magnitude at R ≃ 10 km. These observations are supplemented with one datum for the main shock, 6 observations for two ML ≧ 5 aftershocks, and 61 null observations. Peak accelerations at sites on bedrock or minor sedimentary thicknesses are consistently higher than those at sites on several hundred meters or more of sedimentary rocks. Mean values for both site classes of data increase fairly rapidly with magnitude for 3 ≦ ML &lt; 5, but the little available data for ML ≧ 5 suggest this magnitude dependence abruptly terminates at ML ≃ 5. The magnitude dependence of the sedimentarysite data is apparently stronger than for the bedrock-site data. Much if not all of the apparent magnitude dependence of these data can be attributed to properties of the path and not the source, consistent with the hypothesis that the amplitude of the peak acceleration phase, as it leaves the source region, does not depend on source strength although the predominant frequency of this phase increases as the duration and magnitude of the earthquake decreases.

Bibliography

Seekins, L. C., & Hanks, T. C. (1978). Strong-motion accelerograms of the Oroville aftershocks and peak acceleration data. Bulletin of the Seismological Society of America, 68(3), 677â689.

Authors 2

Linda C. Seekins (first)
Thomas C. Hanks (additional)

References 16 Referenced 12

{'key': '2021092217452324900_BIB1', 'first-page': '29', 'article-title': 'Generalized geology of the Oroville earthquake area', 'volume': '124', 'author': 'Bucholz', 'year': '(1975)', 'journal-title': 'Oroville, California, Earthquake 1 August 1975, Calif. Div. Mines Geol. Spec. Rept.'} / Oroville, California, Earthquake 1 August 1975, Calif. Div. Mines Geol. Spec. Rept. / Generalized geology of the Oroville earthquake area by Bucholz ((1975))
{'key': '2021092217452324900_BIB2', 'first-page': '1', 'article-title': 'An array of strong-motion accelerographs in Bear Valley, California', 'volume': '65', 'author': 'Dielman', 'year': '(1975)', 'journal-title': 'Bull. Seism. Soc. Am.'} / Bull. Seism. Soc. Am. / An array of strong-motion accelerographs in Bear Valley, California by Dielman ((1975))
{'key': '2021092217452324900_BIB3', 'article-title': 'Earthquake hazards for buildings', 'author': 'Donovan', 'year': '(1973)', 'journal-title': 'Building Practices for Disaster Mitigation, Building Science Series 46'} / Building Practices for Disaster Mitigation, Building Science Series 46 / Earthquake hazards for buildings by Donovan ((1973))
{'key': '2021092217452324900_BIB4', 'first-page': '1192', 'article-title': 'Precise source parameters of a multiple rupture event using ten strong motion records from the Aug. 6, 1975 Oroville, California, aftershock (abstract)', 'volume': '58', 'author': 'Fletcher', 'year': '(1977)', 'journal-title': 'EOS'} / EOS / Precise source parameters of a multiple rupture event using ten strong motion records from the Aug. 6, 1975 Oroville, California, aftershock (abstract) by Fletcher ((1977))
Hanks T. C. (1976). Strong-motion accelerograms of the Oroville aftershocks, Report No. UCEER-4, Universities Council for Earthquake Engineering Research, California Institute of Technology, Pasadena.
{'key': '2021092217452324900_BIB6', 'first-page': '959', 'article-title': 'Geophysical assessment of peak accelerations', 'volume': '66', 'author': 'Hanks', 'year': '(1976)', 'journal-title': 'Bull. Seism. Soc. Am.'} / Bull. Seism. Soc. Am. / Geophysical assessment of peak accelerations by Hanks ((1976))
10.1785/BSSA0660041155 / Bull. Seism. Soc. Am. / Strong-motion earthquake accelorograms at Brawley, California: January 25, 1975 by Johnson ((1976))
{'key': '2021092217452324900_BIB8', 'article-title': 'Analysis of strong motion records from the Haicheng-Yingkou region', 'author': 'Kuo', 'year': '(1975)', 'journal-title': 'Earthquake Eng. Res. Rep. Inst. Eng. Mech.'} / Earthquake Eng. Res. Rep. Inst. Eng. Mech. / Analysis of strong motion records from the Haicheng-Yingkou region by Kuo ((1975))
{'key': '2021092217452324900_BIB9', 'first-page': '115', 'article-title': 'Strong-motion seismograph results from the Oroville earthquake of 1 August 1975', 'volume': '124', 'author': 'Maley', 'year': '(1975)', 'journal-title': 'Oroville, California, Earthquake 1 August 1975, Calif. Div. Mines Geol. Spec. Rept.'} / Oroville, California, Earthquake 1 August 1975, Calif. Div. Mines Geol. Spec. Rept. / Strong-motion seismograph results from the Oroville earthquake of 1 August 1975 by Maley ((1975))
{'key': '2021092217452324900_BIB10', 'first-page': '1192', 'article-title': 'Strong ground motion in the epicentral region of two large aftershocks of the Oroville, California, earthquake of 1 August 1975 (abstract)', 'volume': '58', 'author': 'McGarr', 'year': '(1977)', 'journal-title': 'EOS'} / EOS / Strong ground motion in the epicentral region of two large aftershocks of the Oroville, California, earthquake of 1 August 1975 (abstract) by McGarr ((1977))
10.1785/BSSA0660041065 / Bull. Seism. Soc. Am. / The Oroville earthquake sequence of August 1975 by Morrison ((1976))
{'key': '2021092217452324900_BIB12', 'first-page': '506', 'article-title': 'Examination of response spectral characteristics of the higher-magnitude aftershocks of the 1975 Oroville earthquake', 'volume-title': 'Geol. Soc. Am.', 'author': 'Sadigh', 'year': '(1977)'} / Geol. Soc. Am. / Examination of response spectral characteristics of the higher-magnitude aftershocks of the 1975 Oroville earthquake by Sadigh ((1977))
{'key': '2021092217452324900_BIB13', 'first-page': '501', 'article-title': 'Accelerations in rock for earthquakes in the western United States', 'volume': '63', 'author': 'Schnabel', 'year': '(1973)', 'journal-title': 'Bull. Seism. Soc. Am.'} / Bull. Seism. Soc. Am. / Accelerations in rock for earthquakes in the western United States by Schnabel ((1973))
{'key': '2021092217452324900_BIB14', 'article-title': 'Map showing distribution and configuration of basement rocks in California (north half) (south half)', 'author': 'Smith', 'year': '(1964)', 'journal-title': 'U.S. Geol. Surv.'} / U.S. Geol. Surv. / Map showing distribution and configuration of basement rocks in California (north half) (south half) by Smith ((1964))
{'key': '2021092217452324900_BIB15', 'first-page': '101', 'article-title': 'Strong-motion accelerograms of the aftershocks', 'author': 'Toppozada', 'year': '(1975)', 'journal-title': 'Oroville, California, Earthquake 1 August 1975, Calif. Div. Mines Geol. Spec. Report 124'} / Oroville, California, Earthquake 1 August 1975, Calif. Div. Mines Geol. Spec. Report 124 / Strong-motion accelerograms of the aftershocks by Toppozada ((1975))
{'key': '2021092217452324900_BIB16', 'first-page': '189', 'article-title': 'Preliminary analysis of the peaks of strong earthquake ground motion-dependence of peaks on earthquake magnitude, epicentral distance, and recording site conditions', 'volume': '66', 'author': 'Trifunac', 'year': '(1976)', 'journal-title': 'Bull. Seism. Soc. Am.'} / Bull. Seism. Soc. Am. / Preliminary analysis of the peaks of strong earthquake ground motion-dependence of peaks on earthquake magnitude, epicentral distance, and recording site conditions by Trifunac ((1976))

Dates

Type	When
Created	3 years, 11 months ago (Sept. 22, 2021, 2:53 p.m.)
Deposited	3 years, 11 months ago (Sept. 22, 2021, 2:53 p.m.)
Indexed	1 year, 7 months ago (Jan. 12, 2024, 12:04 p.m.)
Issued	47 years, 2 months ago (June 1, 1978)
Published	47 years, 2 months ago (June 1, 1978)
Published Online	47 years, 2 months ago (June 1, 1978)
Published Print	47 years, 2 months ago (June 1, 1978)

Funders 0

None

BibTeX

@article{Seekins_1978, title={Strong-motion accelerograms of the Oroville aftershocks and peak acceleration data}, volume={68}, ISSN={0037-1106}, url={http://dx.doi.org/10.1785/bssa0680030677}, DOI={10.1785/bssa0680030677}, number={3}, journal={Bulletin of the Seismological Society of America}, publisher={Seismological Society of America (SSA)}, author={Seekins, Linda C. and Hanks, Thomas C.}, year={1978}, month=jun, pages={677–689} }

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