Name: IGARASHI Toshihiro,
Position:Assistant Professor
Division/Center: Coordination Center for Prediction Research of Earthquakes and Volcanic Eruptions
Research Area: Seismology

Last Update 12/01 2015



Igarashi, T., T. Matsuzawa, N. Umino, and A. Hasegawa, Spatial distribution of focal mechanisms for interplate and intraplate earthquakes associated with the subducting Pacific plate beneath the northeastern Japan arc: A triple-planed deep seismic zone , J. Geophys. Res., 106, B2, 2177--2191, 2001.

五十嵐俊博・松澤暢・長谷川昭, 東北日本沈み込み帯で発生する地震活動の時空間変化, 地震2, 54, 4, 465--474, 2002.

Matsuzawa, T., T. Igarashi, and A. Hasegawa, Characteristic small-earthquake sequence off Sanriku, northeastern Honshu, Japan, Geophys. Res. Lett., 29, 11, 1543, doi:10.1029/2001GL014632, , 2002.

Igarashi T., T. Matsuzawa, and A. Hasegawa, Repeating earthquakes and interplate aseismic slip in the northeastern Japan subduction zone, J. Geophys. Res., 108, 5, 2249, doi:10.1029/2002JB001920, , 2003.

Igarashi, T., Seismic velocity discontinuities in the crust and uppermost mantle beneath the Kanto district, central Japan, identified from receiver function imaging and repeating earthquake activity, Gondwana Research, 16, 3-4, 491--503, 2009.

Igarashi, T., T. Iidaka, T. Iwasaki, T. Shibutani, T. Ueno, and Japanese University Group, Crust and uppermost mantle structure beneath central Japan inferred from receiver function analysis, Earth Planets Space, 61, 11, 1215--1221, 2009.

Igarashi, T., Spatial changes of inter-plate coupling inferred from sequences of small repeating earthquakes in Japan, Geophys. Res. Lett., 37, L20304, doi:10.1029/2010GL044609, , 2010.

五十嵐 俊博・飯高 隆・宮林 佐和子, レシーバ関数解析から推定された日本列島の地殻構造, 地震2, 63, 3, 139--151, 2011.

Kato, A., K. Obara, T. Igarashi, H. Tsuruoka, S. Nakagawa, and N. Hirata, Propagation of slow slip leading up to the 2011 Mw9.0 Tohoku-oki earthquake, Science, 335, 705--708, 2012.

Kato, A. and T. Igarashi, Regional extent of the large coseismic slip zone of the 2011 Mw 9.0 Tohoku-Oki Earthquake delineated by on-fault aftershocks, Geophys. Res. Lett., 39, doi:10.1029/2012GL052220, , 2012.

Aitaro Kato, Toshihiro Igarashi, and Kazushige Obara, Detection of a hidden Boso slow slip event immediately after the 2011 Mw 9.0 Tohoku-Oki earthquake, Japan, Geophys. Res. Lett., 41, doi:10.1002/2014GL061053, , 2014.

Sawako Kinoshita, Toshihiro Igarashi, Yosuke Aoki, Minoru Takeo, Imaging crust and upper mantle beneath Mt. Fuji, Japan, by receiver functions, J. Geophys. Res., 120, 5, doi:10.1002/2014JB011522, , 2015.