Japan Geoscience Union Meeting 2016

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Oral

Symbol S (Solid Earth Sciences) » S-SS Seismology

[S-SS26] Crustal Structure

Sun. May 22, 2016 9:00 AM - 10:15 AM 201A (2F)

Convener:*Koichiro Obana(Research and Development Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology), Chair:Yoshio Murai(Institute of Seismology and Volcanology, Faculty of Science, Hokkaido University), Yojiro Yamamoto(Japan Agency for Marine-Earth Science and Technology)

9:30 AM - 9:45 AM

[SSS26-03] Receiver Function Analysis for Broadband Seismic Stations in Ryukyu Arc

*Takumi Murakoshi1, Hiroshi Takenaka2, Masanao Komatsu2, Nobuyuki Yamada3 (1.National Defense Academy, 2.Okayama Univ., 3.Fukuoka University of Education)

Keywords:receiver function, Ryukyu arc, crustal structure

The S-wavevector receiver function (SWV-RF) has a great advantage that the problem of unclearly seismic images beneath very thick sedimentary basin due to the records include strong effect of reverberation within the sedimentary layer can be overcome (Takenaka and Murakoshi, 2010, AGU). In this study, we applied the SWV-RF from broadband seismic records of the F-net (NIED) and ETOS (JMA) to obtain the seismic structures in Ryukyu Arc. In this presentation, we will describe the estimated seismic structure under each stations in the Ryukyu Arc. Acknowledgement: We have used F-net data (NIED) and ETOS data (JMA), “Japan integrated velocity structure model 2012” provided by Headquarters for Earthquake Research Promotion of Japan (HERPJ).