1．氏名: 関口 渉次 (Shoji SEKIGUCHI)

2．専門分野: 地震学(理学博士)

3．研究業績等

(1) 論文(査読あり)

·         Sekiguchi,S., 1985, The magnitude of driving forces of plate motion, Journal of Physics of the Earth, 33, 369-389.

·         Shimada,S., S.Sekiguchi, T.Eguchi, Y.Okada and Y.Fujinawa, 1989, Preliminary results of the observation by fixed-point GPS simultaneous baseline determination network in Kanto-Tokai district, 測地学会誌, 35, 85-95.

·         Shimada,S, Y.Fujinawa, S.Sekiguchi, S.Ohmi, T.Eguchi and Y.Okada, 1990, Detection of a volcanic fracture opening in Japan using Global Positioning System measurements, Nature, 343, 631-633.

·         Sekiguchi,S., 1991, Three-dimensional Q structure beneath the Kanto-Tokai district, Japan, Tectonophysics, 195, 83-104. 　

·         Sekiguchi,S. and K.Hirahara, H.Tsuji, A.Sengoku, S.Watada, M.Satomura and S.Shimada, 1991, Simultaneous measurements of site locations by GPS interferometers referred to VLBI and SLR sites in Japan , 測地学会誌, 37, 175-186.

·         藤縄幸雄・島田誠一・岸井徳雄・関口渉次・江口孝雄・岡田義光，1991，高地における対流圏電波伝搬遅延量，測地学会誌，37，237-252．

·         Sekiguchi,S., 1993, Amplitude distribution of seismic waves for laterally heterogeneous structures including a subducting slab, Geophysical Journal International, 111, 448-464.

·         関口渉次，2000，関東東海中部地域最上部マントル３次元Ｐ波およびＳ波速度構造，地震，53，137-151．

·         Sekiguchi,S., 2001, A new configuration and an aseismic slab of the descending Philippine Sea plate revealed by seismic tomography, Tectonophysics, 341, 19-32.

·         Ito,Y., H. Matsubayashi, H. Kimura, T. Matsumoto, Y. Asano, and S. Sekiguchi, 2004, Spatial distribution for moment tensor solutions of the 2003 Tokachi-oki earthquake (Mw = 7.9) and aftershocks, Earth, Planets and Space, 56, 301-306.

·         関口渉次・飯尾能久・大見士朗・伊藤久男・堀内茂木，2004，稠密地震観測データを用いた長野県西部地域の３次元速度構造とその時間変化の可能性，地震，57，55-61．

·         Okada,Y., K.Kasahara,S.Hori,K.Obara,S.Sekiguchi,H.Fujiwara,A.Yamamoto, S.Hori,K.Obara,S.Sekiguchi,H.Fujiwara and A.Yamamoto, 2004, Recent progress of seismic observation networks in Japan -Hi-net,F-net,K-NET and KiK-net-, Earth, Planets and Space, 56, xv-xxviii.

·         Ito,Y., T.Matsumoto, H. Kimura, H. Matsubayashi, K.Obara, and S. Sekiguchi, 2005, Spatial distribution of centroid moment tensor solutions for the 2004 off Kii peninsula earthquakes, Earth, Planets and Space, 57, 351-356.

·         Matsumoto, T., Y.Ito, H.Matsubayashi, and S.Sekiguchi, 2006, Spatial distribution of F-net moment tensors for the 2005West Off Fukuoka Prefecture Earthquake determined by the extended method of the NIED F-net routine, Earth, Planets and Space, 58, 63-67.

·         Ito,Y., K. Obara, T.Takeda, K.Shiomi, T.Matsumoto, S.Sekiguchi and S.Hori, 2006, Initial-rupture fault, main-shock fault, and aftershock faults: Fault orientation and bends inferred from centroid moment tensor inversion for the 2005 West Off Fukuoka Prefecture Earthquake , Earth, Planets and Space, 58, 69-74.

·         Kawakata, H., H. Ogasawara, S. Sekiguchi, S. Uyama and K. Mino, 2006, Stress change prior to the major events in the 1989 earthquake swarm off the eastern Izu Peninsula, Japan, Earth, Planets and Space, 58, 305-314.

·         Sekiguchi,S., 2006, Hierarchical traveltime tomography, Geophysical Journal International, 166, 1105-1124.

·         Y. Ito, S.Sekiguchi and T. Okada, R. Honda, K. Obara, S. Hori, 2006, Performance of regional distance centroid moment tensor inversion applied to the 2004 mid-Niigata prefecture earthquake, Japan?, Geophysical Journal International, 167, 1317-1331.

·         Watada, Shingo, Kunugi, Takashi and Hirata, Kenji; Sugioka, Hiroko; Nishida, Kiwamu; Sekiguchi, Shoji; Oikawa, Jun; Tsuji, Yoshinobu; Kanamori, Hiroo, 2006, Atmospheric pressure change associated with the 2003 Tokachi-Oki earthquake, Geophysical Research Letters, 33, doi:10.1029/2006GL027967.

·         松村稔・伊藤喜宏・木村尚紀・小原一成・関口渉次・堀貞喜・笠原敬司，2006，高精度即時震源パラメータ解析システム(AQUA)の開発，地震，59，167-184．

·         関口渉次，2008，地震波着信順を用いたグリッドサーチ法による簡易震央推定法，地震，61，11-26．

·         林広樹・柳沢幸夫・武田哲也・関口渉次・笠原敬司，2008，関東平野の地下における新第三系の年代と地震波速度，フィッション・トラックニュースレター，21，9-15．

·         Doi,I., S.Noda, Y.Iio, S.Horiuchi, and S.Sekiguchi, 2013, Relationship between hypocentral distributions and Vp/Vs ratiostructures inferred from dense seismic array data: a case study of the 1984 western Nagano Prefecture earthquake, central Japan, Geophysical Journal International, 195, 1323-1336.

(2) 論文(査読なし)

·         Sekiguchi,S., 1988, A new seismic phase from earthquakes beneath the Japan Sea, Generated near the Moho discontinuity, 国立防災科学技術センター研究速報, 78, 1-12.

·         関口渉次，2010，事前走時計算をもとにした3次元速度構造における迅速な震源決定手法について，防災科学技術研究所研究報告，77，1-5．

4．受賞歴

5．所属学会

６．そのほか

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2016/07/20 updated