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(23) T. Yamada , M. Duan, and J. Kawahara (2021),
       Spatio-temporal characteristics of frictional properties on
       the subducting Pacific Plate off the east of Tohoku district,
       Japan estimated from stress drops of small earthquakes,
       Earth Planets Space, 73:18, https://doi.org/10.1186/s40623-020-01326-8.
       Link to the paper: https://earth-planets-space.springeropen.com/articles/10.1186/s40623-020-01326-8

(22) H. Takahashi, N. Takai, M. Chigira, G. Meng, S. Kita, and T. Yamada (2020),
       Special issue "The 2018 Hokkaido Eastern Iburi Earthquake
       and Hidaka arc-arc collision system",
       Earth Planets Space, 72:65 (Preface),
       https://doi.org/10.1186/s40623-020-01176-4.

(21) T. Yamada (2018),
       Mechanisms and characteristics of earthquakes in the
       Island of Hawaiʻi,
       Earthquake Journal, 60:60-63 (Invited)
       (Contributed paper in Japanese).

(20) T. Yamada , Y. Saito, Y. Tanioka, and J. Kawahara (2017),
       Spatial pattern in stress drops of moderate-sized earthquakes
       on the Pacific Plate off the south-east of Hokkaido, Japan:
       Implications for the heterogeneity of frictional properties,
       Progress in Earth and Planetary Science, 4:38, doi:10.1186/s40645-017-0152-7.
       Link to the paper: https://progearthplanetsci.springeropen.com/articles/10.1186/s40645-017-0152-7

(19) T. Yamada , Y. Yukutake, T. Terakawa, and R. Arai (2015),
       Migration of earthquakes with a small stress drop in the
       Tanzawa Mountains, Japan,
       Earth Planets Space, 67:175, doi:10.1186/s40623-015-0344-6.
       Link to the paper: https://earth-planets-space.springeropen.com/articles/10.1186/s40623-015-0344-6

(18) S. Urano, Y. Hiramatsu, T. Yamada , and The Group for the Joint Aftershocks Observations of
       the 2007 Noto Hanto Earthquake (2015),
       Relationship between coseismic slip and static stress drop
       of similar aftershocks of the 2007 Noto Hanto earthquake,
       Earth Planets Space, 67:101, doi:10.1186/s40623-015-0277-0.

(17) K. Katsumata, M. Kosuga, H. Katao, T. Yamada , A. Kato,
       and the Research Group for the Joint Seismic Observations
       at the Nobi Area (2015),
       Focal mechanisms and stress field in the Nobi fault area,
       central Japan,
       Earth Planets Space, 67:99, doi:10.1186/s40623-015-0275-2.

(16) M. Ichiyanagi, H. Takahashi, T. Yamaguchi, R. Azuma, T. Yamada , M. Ohzono, A. Shinjo, M. Kasahara, Y. Tanioka (2015),
       Earthquake swarm around Nakagawa town, northern Hokkaido in 2012,
       Geophys. Bull. Hokkaido Univ., 78, 37-51 (Contributed paper in Japanese).

(15) T. Okada, T. Matsuzawa, N. Umino, K. Yoshida, A. Hasegawa, H. Takahashi, T. Yamada , M. Kosuga, T. Takeda, A. Kato,
       T. Igarashi, K. Obara, S. Sakai, A. Saiga, T. Iidaka, T. Iwasaki, N. Hirata, N. Tsumura, Y. Yamanaka, T. Terakawa,
       H. Nakamichi, T. Okuda, S. Horikawa, H. Katao, T. Miura, A. Kubo, T. Matsushima, K. Goto, and H. Miyamachi (2014),
       Hypocenter migration and crustal seismic velocity distribution
       observed for the inland earthquake swarms
       induced by the 2011 Tohoku-Oki earthquake in NE Japan: implications
       for crustal fluid distribution and crustal permeability,
       Geofluids, 15, 293--309, doi: 10.1111/gfl.12112.

(14) T. Yamada (2014),
       Significance of the study of microearthquakes and initial
       rupture of earthquakes: Contributions of borehole seismograms
       to the earthquake seismology,
       Chikyu Monthly, 36, 152-159 (Contributed paper in Japanese).

(13) M. Ichiyanagi, T. Yamaguchi, M. Takada, R. Azuma, K. Kuroi, T. Yamada , H. Takahashi, and T. Maeda (2013),
       Seismic activity associated with the 2010 M4.6 Sapporo Earthquake
       in central Ishikari region, Hokkaido,
       Geophys. Bull. Hokkaido Univ., 76, 1-13 (Contributed paper in Japanese).

(12) Y. Kakinami, M. Kamogawa, S. Watanabe, M. Odaka, T. Mogi, J. Liu, Y.-Y. Sun, and T. Yamada (2013),
       Ionospheric ripples excited by superimposed wave fronts
       associated with Rayleigh wave in thermosphere,
       J. Geophys. Res., 118, 1-7, 2012JA018219, doi:10.1002/jgra.50099.

(11) A. Kato, T. Igarashi, K. Obara, S. Sakai, T. Takeda, A. Saiga, [17 coauthors], H. Takahashi, and T. Yamada
       (25 authors in total) (2013),
       Imaging the source regions of normal faulting sequences induced
       by the 2011 M9.0 Tohoku-Oki earthquake,
       Geophys. Res. Lett., doi:10.1002/grl.50104.

(10) R. Azuma, Y. Murai, K. Katsumata, Y. Nishimura, T. Yamada, K. Mochizuki, and M. Shinohara (2012),
       Was the 1952 Tokachi-oki earthquake (Mw = 8.1) a typical
       underthrust earthquake?: Plate interface reflectivity
       measurement by an airgun-ocean bottom seismometer experiment
       in the Kuril Trench,
       Geochem. Geophys. Geosyst., 13, Q08015, doi:10.1029/2012GC004135.

(9) T. Yamada, P. G. Okubo, and C. J. Wolfe (2010),
       Kīholo Bay, Hawaiʻi, earthquake sequence of 2006: Relationship
       of the main shock slip with locations and source parameters of
       aftershocks,
       J. Geophys. Res., 115, B08304, doi:10.1029/2009JB006657.

(8) T. Yamada, and S. Ide (2008),
       Limitation of the Predominant-Period Estimator for Earthquake
       Early Warning and the Initial Rupture of Earthquakes,
       Bull. Seismol. Soc. Am., 98, 2739-2745, doi:10.1785/0120080144.

(7) T. Yamada, J. J. Mori, S. Ide, R. E. Abercrombie, H. Kawakata, M. Nakatani, Y. Iio, and H. Ogasawara (2007),
       Stress drops and radiated seismic energies of microearthquakes
       in a South African gold mine,
       J. Geophys. Res., 112, B03305, doi:10.1029/2006JB004553.

(6) H. Ogasawara, J. Takeuchi, K. Morishita, N. Shimoda, M. Nakatani, A. Kato, Y. Iio, H. Kawakata,
     T. Yamada, T. Yamauchi, H. Ishii, T. Satoh, K. Kusunose, K. Otsuki, S. Kita, S. Nakao,
     A. K. Ward, R. McGill, S. K. Murphy, A. J. Mendecki, G. van Aswegen,
     and The Research Group for Semi-controlled Earthquake-generation
     Experiments in South African deep gold mines (SeeSA) (2005),
       Multidisciplinary monitoring of the entire life span of an earthquake
       and its practical strategy in South African gold mines,
       in Proceedings of the 6th International Symposium on Rockburst
       and Seismicity in Mines,
       ed. by Y. Potvin and M. Hudyma, Australian Centre for Geomechanics, Nedlands, 393-398.

(5) T. Yamada, J. J. Mori, S. Ide, H. Kawakata, Y. Iio, and H. Ogasawara (2005),
       Radiation efficiency and apparent stress of small earthquakes in a South African gold mine,
       J. Geophys. Res., 110, B01305, doi:10.1029/2004JB003221.

(4) T. Yamada, M. Ando, K. Tadokoro, K. Sato, T. Okuda, and K. Oike (2002),
       Error evaluation in acoustic positioning of a single transponder for seafloor
       crustal deformation measurements,
       Earth Planets Space, 54, 871-881, doi:10.1186/BF03352435.

(3) O. L. Colombo, A. G. Evans, M. Ando, K. Tadokoro, K. Sato, and T. Yamada (2001),
       Speeding up the estimation of floated ambiguities for sub-decimeter
       kinematic positioning at sea,
       in Proceedings of ION GPS-2001, Salt Lake City, Utah.

(2) K. Tadokoro, M. Ando, K. Sato, T. Yamada, T. Okuda, H. Katao, and K. Kishimoto (2001),
       Preparations for the Coming Large Earthquakes at the Nankai Trough:
       Development of an Observation System for Ocean Bottom Crustal Deformation
       Using an Acoustic Ranging-GPS Link (in Japanese with English abstract),
       J. Geography, 110, 521-528.

(1) T. Yamada, M. Ando, and H. Katao (2001),
       Rapid changes of the aftershock P axes 3 years after the 1995 Hyogo-ken Nanbu
       (Kobe) earthquake,
       Geophys. Res. Lett., 28, 37-40.