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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/5920
Title: Attenuation characteristics of ground motion intensity from earthquakes with intermediate depth
Authors: Joshi A.
Midorikawa S.
Published in: Journal of Seismology
Abstract: Data of the intermediate depth (the Geioyo and the Shizuoka) earthquakes in Japan recorded in a dense network is analysed and compared with various available attenuation relations. The approach of Midorikawa (Midorikawa S., 1993, Technophysics 218, 287-295) based on the empirical Green's function technique of Irikura (Irikura, K., 1986, Proceedings of the 7th Japan Earthquake Engineering Symposium, pp. 151-156.) has been used to model the rupture responsible for these earthquakes a nd peak ground acceleration are simulated at selected observation points. The method presented in this work includes the transmission effect in a multiple layer crustal model for a finite fault earthquake source model. Sharp attenuation rate is seen for such intermediate depth earthquakes which is difficult to explain through conventional attenuation relations. Detail study of the methodology and comparison of results shows that the transmission factor plays an important role for the sharp attenuation rate for intermediate-to deep-focus earthquakes. © Springer Science + Business Media, Inc. 2005.
Citation: Journal of Seismology (2005), 9(1): 23-37
URI: https://doi.org/10.1007/s10950-005-1594-8
http://repository.iitr.ac.in/handle/123456789/5920
Issue Date: 2005
Keywords: Attenuation
Envelope
Ground motion
Intensity
Layer
Rupture
Transmission
ISSN: 13834649
Author Scopus IDs: 55682260000
7003745601
Author Affiliations: Joshi, A., Department of Built Environment, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan, Department of Earth Sciences, Kurukshetra University, Kurukshetra, Haryana 136 119, India
Midorikawa, S., Department of Built Environment, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
Funding Details: The author sincerely thanks the Department of Science and Technology, Government of India, for providing the financial support under the BOYSCAST fellowship, to work on the research presented in this paper. Thanks are also due to the Department of Earth Sciences, Kurukshetra University, Kurukshetra, India, for supporting this research program. Thanks are also due to Mr Victor Rodriguez, Dr K. Fujimoto and all members of the Midorikawa’s lab of the Department of Built Environment, Tokyo Institute of Technology for providing the required support for this research work. Strong motion data recorded by the Kyoshin-Net of the National Research Institute for Earth Science and Disaster Prevention, Japan, was used in the present work. Authors also thank the two anonymous referees for their valuable comments.
Corresponding Author: Joshi, A.; Department of Built Environment, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan; email: anushijos@yahoo.co.in
Appears in Collections:Journal Publications [ES]

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