Estimation of the Average Amplification Characteristics of a Sedimentary Layer for Short Period S-waves

Kinoshita, Shūichi; Mikoshiba, Tadashi; Hoshino, Tsutomu

doi:10.4294/zisin1948.39.1_67

Cited by 4 publications

(3 citation statements)

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“…Site specific amplification factors have been obtained from regression analysis for accelerograms (e.g., Kamiyama and Yanagisawa, 1986;Kinoshita et al, 1986;Takemura et al, 1987) based on formulas of attenuation curves for the observed response spectra, which are usually described by earthquake magnitude and hypocentral or epicentral distance. Details of the attenuation curves will be described in Subsec.…”

Section: Empirical Evaluation Of Site Amplification Factorsmentioning

confidence: 99%

“…If we have data on the stratum which can be assumed to be a homogeneous half-space, this problem may be easily solved (Kinoshita et al, 1986). Such strata are named seismic bedrock (Ohta, 1967).…”

Section: Empirical Evaluation Of Site Amplification Factorsmentioning

confidence: 99%

“…(3) are replaced by dummy variables for individual events to determine the distance coefficient b. Kinoshita et al (1986) and Takemura et al (1983) studied the regional variation of the distance coefficient b in Eq. (3) for the Tohoku and Kanto districts in Japan.…”

Section: Empirical Approachmentioning

confidence: 99%

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Strong Motion Seismology in Japan.

1995

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This paper reviews strong motion seismology in Japan. It describes advances in strong motion seismology in the last decade, the current state of the art, and unresolved issues in the following areas: (1) Observation and data processing of strong ground motion, (2) Local site effects, and (3) Simulation and prediction of strong ground motion. In the first area, it reviews the current state of strong motion observation and data processing: fundamental subjects in strong motion seismology. In the next area, it describes empirical evaluations of site amplification factors, effects of soil nonlinearity, effects of topographical and subsurface irregularity, and application of microtremors. In the last area, it summarizes the results of empirical, semi-empirical, and numerical techniques for the simulation and the prediction of strong ground motions due to actual earthquakes. Finally, future directions of research are suggested, based on the current state of the art in strong motion seismology.

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Section: Empirical Evaluation Of Site Amplification Factorsmentioning

confidence: 99%

Section: Empirical Evaluation Of Site Amplification Factorsmentioning

confidence: 99%

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Strong Motion Seismology in Japan.

1995

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Development of Strong-Motion Observation Network Constructed by NIED

Kinoshita

Nato Science Series: IV: Earth and Environmental Sciences

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Frequency-dependent attenuation of shear waves in the crust of the southern Kanto area, Japan

Kinoshita

1994

Bulletin of the Seismological Society of America

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The attenuation characteristics of shear waves in the crust of the southern Kanto area, central Japan, were estimated using strong-motion data, including acceleration data recorded in the pre-Tertiary basement rocks by means of downhole observation. The quality factor Qs(f) was determined for a range of discrete frequencies from 0.5 to 16 Hz from the analysis of data from 13 local earthquakes with focal depths of less than about 50 km that occurred in the Philippine Sea plate and in the boundary zone between the lower part of the Eurasian plate and the upper part of the Philippine Sea plate. The estimated 1/Qs(f) shows a peaked structure in this frequency range on the assumption that the geometrical spreading exponent is -1 (body waves). The estimated peak 1/Qs(f) is of the order of 10-2 at 0.8 Hz.

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Estimation of the Average Amplification Characteristics of a Sedimentary Layer for Short Period S-waves

Cited by 4 publications

References 0 publications

Strong Motion Seismology in Japan.

Strong Motion Seismology in Japan.

Development of Strong-Motion Observation Network Constructed by NIED

Frequency-dependent attenuation of shear waves in the crust of the southern Kanto area, Japan

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