Studies on the 2016 Kumamoto Earthquake Sequence

Last updated on November 19, 2024

• Paper on revision of the source mode of the mainshock and forward directivity pulse in the Aso Caldera has been pulished in Bulletin of the Seismological Society of America [2021/07/20]

  Asano, K. and T. Iwata (2021), Revisiting the source rupture process of the mainshock of the 2016 Kumamoto earthquake and implications for the generation of near-fault ground motions and forward‐directivity pulse, Bull. Seismol. Soc. Am., 111, 2426-2440, doi:10.1785/0120210047.

• Paper on the source process of the foreshock (April 14, 21:26, Mw6.1) and the mainshock (April 16, 01:25 Mw7.0) was published as Frontier Letter in Earth, Planets and Space [2016/08/31, Open Access!]

  Asano, K. and T. Iwata (2016), Source rupture processes of the foreshock and mainshock in the 2016 Kumamoto earthquake sequence estimated from the kinematic waveform inversion of strong motion data, Earth Planets Space, 68:147, doi:10.1186/s40623-016-0519-9.

  
• Digital data of the above source models are available here!
• Analysis of Strong Ground Motions at Mashiki town and Nishihara village offices by Prof. Iwata [2016/04/28Updated]

Related Publications

• Terakawa, T., K. Asano, and Y. Urata (2025), Constraint on the background stress in the source region of the 2016 Kumamoto earthquake sequence based on temporal changes in elastic strain energies and coseismic stress rotation, Geophys. J. Int, 240, 174-188, doi:10.1093/gji/ggae376.
• Asano, K., T. Iwata, and M. Yoshimi (2021), Ground Motion Simulation of the Mainshock in the 2016 Kumamoto Earthquake Sequence, Japan, Using a Newly Developed 3D Velocity Model, Proc. 6th IASPEI/IAEE Symposium on Effects of Surface Geology on Seismic Motion, paper no. GS4-P03.
• Iwata, T. (2021), Source and Site Effects of the 2016 Kumamoto, Japan, Mainshock, Proc. 6th IASPEI/IAEE Symposium on Effects of Surface Geology on Seismic Motion, paper no. GS1-I01.
• Asano, K. and T. Iwata (2021), Revisiting the source rupture process of the mainshock of the 2016 Kumamoto earthquake and implications for the generation of near-fault ground motions and forward‐directivity pulse, Bull. Seismol. Soc. Am., 111, 2426-2440, doi:10.1785/0120210047.
• Somei, K., K. Asano, T. Iwata, K. Miyakoshi, K. Yoshida, and M. Yoshimi (2019), Source, Propagation Path, and Site Characteristics Separated from Strong Motion Records during the 2016 Kumamoto, Japan, Earthquake Sequence, J. Japan Assoc. Earthq. Eng., 19(6), 42-54 (in Japanese with English abstract).
• Tsutsumi, H., S. Toda, H. Goto, Y. Kumahara, D. Ishimura, N. Takahashi, K. Taniguchi, M. Omata, Y. Koriya, M. Gomi, K. Asano, and T. Iwata (2018), Paleoseismic trenching across the surface rupture of the 2016 Kumamoto earthquake at Jichu, Mashiki Town, Kumamoto Prefecture, Active Fault Res., 49, 31-39 (in Japanese with English abstract).
• Hallo, M., K. Asano, and F. Gallovič (2017), Bayesian inference and interpretation of centroid moment tensors of the 2016 Kumamoto earthquake sequence, Kyushu, Japan, Earth Planets Space, 69:134, doi:10.1186/s40623-017-0721-4.
• Asano, K. and T. Iwata (2016), Source rupture processes of the foreshock and mainshock in the 2016 Kumamoto earthquake sequence estimated from the kinematic waveform inversion of strong motion data, Earth Planets Space, 68:147, doi:10.1186/s40623-016-0519-9. .