• Professional Career

Mar. 2010?D.Sc. Graduate School of Science, Hiroshima University
2010?JSPS Research Fellowship for Young Scientists (PD), Kyoto University
2011-2013?Postdoctoral Researcher, Geological Survey of Japan, AIST
2013-2015?Research Scientist, Building Research Institute
2013-present?Associate Professor (joint-appointment), National Graduate Institute for Policy Studies
2015-present?Senior Research Scientist, Building Research Institute

• Selected publications?

[Selected publications]
Hayashida, T., M. Yoshimi, H. Suzuki, S. Mori, T. Kagawa, K. Ichii, and M. Yamada (2023) Tracking the effect of human activity on MeSO‐net noise using seismic data traffic—Did seismic noise in Tokyo truly decrease during the COVID‐19 state of emergency?, Seismological Research Letters 94 (6), 2750–2764.

Hayashida, T., T. Yokoi, N. Nepal, and M. Olivar (2023), Direct estimation of Vs30 using spatial autocorrelation and centreless circular array coefficient curves obtained from microtremor array data, Geophysical Journal International, 233(2), 1515–1528.

Hayashida, T., M. Yoshimi, H. Suzuki, S. Mori, T. Kagawa, M. Yamada, and K. Ichii (2022) Amplitude reductions of microtremors at MeSO-net stations in 2020: observations and interpretations, J. Jpn. Soc. Civil Eng., A1 (Structural Engineering & Earthquake Engineering), 78(4) I_624-I_635.

Hayashida, T., T. Yokoi and M. Bhattarai (2019) Estimation of shallow-to-deep shear wave velocity structure from joint inversion of surface-wave phase and group velocities, J. Japan Assoc. Earthq. Eng. 19(5): 5_111-5_124.

Tajima, F., and T. Hayashida (2018) Earthquake early warning: what does “seconds before a strong hit” mean?, Progress in Earth and Planetary Science, 5:63, DOI: 10.1186/s40645-018-0221-6.

Hayashida, T., Yamada, M., M. Yamada, K. Hada, J. Mori, Y. Fujino, H. Sakaue, S. Fukatsu, E. Nishihara, T. Ouchi, and A. Fujii (2018) Subsurface velocity structure and site amplification characteristics in Mashiki Town, Kumamoto Prefecture, Japan, inferred from microtremor and aftershock recordings of the 2016 Kumamoto Earthquakes, Earth Planets Space 70:116, DOI: 10.1186/s40645-018-0221-6.

Hayashida, T., M. Yoshimi, and H. Horikawa (2014) Estimation of surface wave group velocity beneath the Chukyo area, Japan -application of seismic interferometry to Hi-net continuous waveform data-. Zisin (J. Seismol. Soc. Japan. 2nd ser.), 66(4):127-145.
doi:10.4294/zisin.66.127 (in Japanese with English abstract)

Hayashida, T., F. Tajima, J. Nakajima, and J. Mori (2012) A three-dimensional seismic wave speed model in southwestern Japan from combined use of waveform modeling and travel-time tomography, J. Geophys. Res. 117, B11305
doi:10.1029/2012JB009345.

Hayashida, T., F. Tajima, and J. Mori (2010) Improved seismic velocity structure in southwestern Japan using pronounced sP phases recorded for intraslab earthquakes, Bull. Seismol. Sco. Am. 100, 1928-1939.

Hayashida, T. and F. Tajima (2007) Calibration of amplification factors using KiK-net strong-motion records: toward site effective estimation of seismic intensities, Earth Planets Space 59, 1111-1125.

[Awards]
2015 Excellent Reviewers in Earth, Planets and Space (Feb. 2016)

• Link

- TAKUMI HAYASHIDA (International Institute of Seismology and Earthquake Engineering, Building Research Institute)

- Researchmap