研究成果

1. Chhun, C., T. Tsuji, T. Ikeda (2024), Potential fluid flow pathways and the geothermal structure of Kuju revealed by azimuthal anisotropic ambient noise tomography
   Geothermics, 119, 102932 [Link] 

2. Chhun, C., T. Tsuji, T. Ikeda (2024), Potential geothermal reservoir systems in the Kenyan Great Rift Valley and volcanic region assessed by ambient noise analysis
   J. Afr. Earth Sci., 210, 105161 [Link] 

3. Imazato, H., T. Ikeda, T. Tsuji (2023), Shallow S wave velocity profile from acti ve source seismic data at the Apollo 14 landing site based on virtual multichannel analysis of surface waves
   Icarus, 406, 115724 [Link]

4. 二宮 啓, 宮川 歩夢, 一木 正聡, 岡本 有貴, 桑原 正史, 池田 逹紀, 辻 健 (2023), 地震観測データを用いた公園内のランニング人数の推定
   電気学会論文誌, 143 (10), 331-336 [Link]

5. Tsuji, T., T. Kobayashi, J. Kinoshita, T. Ikeda, T. Uchigaki, Y. Nagata, T. Kawamura, K. Ogawa, S. Tanaka, A. Araya (2023), Lunar active seismic profiler for investigating shallow substrates of the Moon and other extraterrestrial environments
   Icarus, 404, 115666 [Link]

6. Bokani, N., T. Ikeda, T. Tsuji, Y. Iio (2023), High-Resolution Three-dimensional Azimuthal Velocity Anisotropy of S-waves in southern-central Japan, based on Ambient Noise Tomography
   Earth Planet Space, 75, 102 [Link]

7. Rezkia, D.A., T. Tsuji, T. Ikeda, S. Matsumoto, K. Kitamura, J. Nishijima (2023), Tracking supercritical geothermal fluid distribution from continuous seismic monitoring
   Sci. Rep., 13, 8370 [Link]

8. Nimiya, H., T. Ikeda, T. Tsuji (2023), Multimodal Rayleigh and Love wave joint inversion for S-wave velocity structures in Kanto Basin, Japan
   J. Geophys. Res. 128(1), e2022JB025017 [Link]

9. Imam, T.S., T. Ikeda, T. Tsuji, J. Uesugi, T. Nakamura, Y. Okaue (2022)
   Extracting high-resolution P-wave reflectivity of the shallow subsurface by seismic interferometry based on autocorrelation of blast mining signals
   Geophys. Prospect., 71(7), 1267-1280 [Link]

10. Tsuji, T., S. Tsuji, J. Kinoshita, T. Ikeda, and A. B. Ahmad (2022)
    4 cm Portable Active Seismic Source (PASS) for Meter‐ to Kilometer‐Scale Imaging and Monitoring of Subsurface Structures
    Seismol. Res. Lett., 94(1), 149-158 [Link]

11. Andajani, R. D., T. Tsuji, R. Snieder, and T. Ikeda (2022)
    Spatial an temporal influence of sea level on inland stress based on seismic velocity monitoring
    Earth Planet Space, 74, 97 [Link]

12. Nthaba, B., T. Ikeda, H. Nimiya, T. Tsuji, and Y. Iio (2022)
    Ambient Noise Tomography for a High-resolution 3D S-Wave Velocity Model of the Kinki Region, Southwestern Japan, using Dense Seismic Array Data
    Earth Planet Space, 74, 96 [Link]

13. Ikeda, M., K. Kret, T. Tsuji, T. Ikeda, T. Tsuji, K. Onishi, and N. Nishizaka (2022)
    Pore fabric anisotropy and elastic moduli of fault rocks from the Median Tectonic Line, Shikoku, southwest Japan
    Tectonophysics, 834, 5 [Link]

14. Sawayama, K., T. Ikeda, T. Tsuji, F. Jiang, O. Nishizawa, Y. Fujimitsu (2022)
    Elastic wave velocity changes due to the fracture aperture and density, and direct correlation with permeability: an energetic approach to mated rock fractures
    J. Geophys. Res., 127, 2 [Link]

15. Mourad, M., T. Tsuji, T. Ikeda, K. Ishitsuka, S. Senna, and K. Ide (2021)
    Mapping Aquifer Storage Properties Using S-Wave Velocity and InSAR-Derived Surface Displacement in the Kumamoto Area, Southwest Japan
    Remote Sens., 13(21), 4391 [Link]

16. Nimiya, H., T. Ikeda, and T. Tsuji (2021)
    Temporal changes in anthropogenic seismic noise levels associated with economic and leisure activities during the COVID-19 pandemic
    Sci. Rep., 11, 20439 [Link], [Press Release]

17. Orita, M., T. Ikeda, and T. Tsuji (2021)
    Miniature seismometer array system for Lunar underground structures investigation: Evaluation of its exploration depth based on Apollo seismometer data [in Japanese with English Abstract]
    BUTSURI-TANSA, 74, 79-91 [Link]

18. Tsuji, T., T. Ikeda, R. Matsuura, K. Mukumoto, F.L. Hutapea, T. Kimura, K. Yamaoka, and M. Shinohara (2021)
    Continuous monitoring system for safe managements of CO2 storage and geothermal reservoirs
    Sci. Rep., 11, 19120 [Link]

19. Ikeda, T., T. Tsuji, K. Konishi, and H. Saito (2021)
    Spatial autocorrelation method for reliable measurements of two-station dispersion curves in heterogeneous ambient noise wavefields
    Geophys. J. Int., 226(2), 1130–1147 [Link]

20. Andajani, R. D., T. Tsuji, R. Snieder, and T. Ikeda (2021)
    Spatial and temporal influence of rainfall on crustal pore pressure based on seismic velocity monitoring
    Earth Planet Space, 72, 177 [Link]

21. Suemoto, Y., T. Ikeda, and T. Tsuji (2020)
    Temporal variation and frequency dependence of seismic ambient noise on Mars from polarization analysis
    Geophys. Res. Lett., e2020GL087123 [Link]

22. Nimiya, H., T. Ikeda, and T. Tsuji (2020)
    Three-dimensional S-wave velocity structure of central Japan estimated by surface-wave tomography using ambient noise
    J. Geophys. Res., 125, 4 [Link]

23. Hutapea, F.L., T. Tsuji, and T. Ikeda (2020)
    Real-time crustal monitoring system of Japanese Island based on spatio-temporal seismic velocity variation
    Earth Planet Space, 72, 19 [Link]

24. Suemoto, Y., T. Ikeda, T. Tsuji, and Y. Iio (2020)
    Identification of a nascent tectonic boundary in the San-in area, southwest Japan, using a 3D S-wave velocity structure obtained by ambient noise surface wave tomography
    Earth Planet Space, 72, 15 [Link]

25. Ikeda, T. and T. Tsuji  (2020)
    Two-station continuous wavelet transform cross-coherence analysis for surface-wave tomography using active-source seismic data
    Geophysics, 85, EN17-28 [Link]

26. Takahashi, K., T. Tsuji, T. Ikeda, H. Nimiya, Y. Nagata, and Y. Suemoto (2019)
    Underground structures associated with horizontal sliding at Uchinomaki hot springs, Kyushu, Japan, during the 2016 Kumamoto earthquake
    Earth Planets Space, 71:87 [Link]

27. Andajani, R. D., T. Ikeda, and T. Tsuji (2019)
    Surface wave analysis for heterogeneous geological formation in geothermal field: Effect of wave propagation direction
    Explor. Geophys., 50(3), 255-268 [Link]

28. Tsuji, T., T. Ikeda, and F. Jiang (2019)
    Evolution of hydraulic and elastic properties of reservoir rocks due to mineral precipitation in CO2 geological storage
    Comput. and Geosci., 126, 84-95[Link]

29. Kret, K., T. Ikeda, and T. Tsuji (2019)
    Grid-search inversion based on rock physics model for estimation of pore geometry and grain elastic moduli: Application to hydrothermal ore deposits and basalt
    Explor. Geophys., 50(1), 1-11 [Link]

30. Ikeda, T. and T. Tsuji (2018)
    Temporal change in seismic velocity associated with an offshore MW 5.9 Off-Mie earthquake in the Nankai subduction zone from ambient noise cross-correlation
    Prog. Earth Planet. Sci., 5:62 [Link]

31. Ikeda, T., T. Tsuji, M. Nakatsukasa, H. Ban, A. Kato, K. Worth, D. White, and B. Roberts (2018)
    Imaging and monitoring of the shallow subsurface using spatially windowed surface-wave analysis with a single permanent seismic source
    Geophysics, 83(6), EN23-EN38 [Link]

32. Nimiya, H., T. Ikeda, and T. Tsuji (2017)
    Spatial and temporal seismic velocity changes on Kyushu Island during the 2016 Kumamoto earthquake
    Sci. Adv., 3(11), e1700813 [Link]

33. Eng. C., T. Ikeda, and T. Tsuji (2017)
    Study of the Nankai seismogenic fault using dynamic wave propagation modelling of digital rock from the Nobeoka fault
    Explor. Geophys., doi:10.1071/EG17129 [Link]

34. Ikeda, T., T. Tsuji, M. Takanashi, I. Kurosawa, M. Nakatsukasa, A. Kato, K. Worth, D. White, and B. Roberts (2017)
    Temporal variation of the shallow subsurface in the Aquistore CO2 storage site associated with environmental influences using a continuous and controlled seismic source
    J. Geophys. Res., 122(4), 2859-2872 [Link]

35. Tsuji, T., T. Ikeda, T.A. Johansen, and B.O. Ruud (2016)
    Utilizing seismic noise derived from fluid injection well for continuous reservoir monitoring
    Interpretation, 4(4), SQ1-SQ11 [Link]

36. Ikeda, T. and T. Tsuji (2016)
    Surface wave attenuation in the shallow subsurface from multichannel-multishot seismic data: a new approach for detecting fractures and lithological discontinuities
    Earth Planets Space, 68:111, [Link]

37. Ikeda, T., T. Tsuji, T. Watanabe, and K. Yamaoka (2016)
    Development of surface-wave monitoring system for leaked CO2 using a continuous and controlled seismic source
    Int. J. Greenhouse Gas Control, 45, 94-105 [Link], [EulekAlert]

38. Ikeda, T. and T. Tsuji (2015)
    Advanced surface-wave analysis for 3D ocean bottom cable data to detect localized heterogeneity in shallow geological formation of a CO2 storage site
    Int. J. Greenhouse Gas Control, 39, 107-118 [Link]

39. Ikeda, T., T. Matsuoka, T. Tsuji, and T. Nakayama (2015)
    Characteristics of the horizontal component of Rayleigh waves in multimode analysis of surface waves
    Geophysics, 80(1), EN1-EN11 [Link]

40. Ikeda, T. and T. Tsuji (2014)
    Azimuthal anisotropy of Rayleigh waves in the crust in southern Tohoku area, Japan
    J. Geophys. Res., 119(12), 8964-8975 [Link]

41. Ikeda, T., T. Tsuji, and T. Matsuoka (2013)
    Window-controlled CMP crosscorrelation analysis for surface waves in laterally heterogeneous media
    Geophysics, 78(6), EN95-EN105 [Link]

42. Ikeda, T. and T. Matsuoka (2013)
    Computation of Rayleigh waves on transversely isotropic media by the reduced delta matrix method
    Bull. Seismol. Soc. Am., 103(3), 2083-2093 [Link]

43. Ikeda, T., T. Matsuoka, T. Tsuji, and K. Hayashi (2012)
    Multimode inversion with amplitude response of surface waves in the spatial autocorrelation method
    Geophys. J. Int., 190(1), 541-552 [Link]

44. Ono, Y., T. Noguchi, R. R. Putra, S. Uemura, T. Ikeda, and J. Kiyono (2012)
    Estimating subsurface shear wave velocity structure and site amplification characteristics of Padang, Indonesia  [in Japanese with English Abstract]
    JSCE journal, A1, 68(4), 227-235

45. Tsuji. T., T. A. Johansen, B. O. Ruud, T. Ikeda, and T. Matsuoka (2012)
    Surface-wave analysis for identifying unfrozen zones in subglacial sediments
    Geophysics, 77(3), EN17-EN27 [Link]

46. Ikeda. T., T. Matsuoka, T. Tsuji, and K. Hayashi (2011)
    Multi-mode analysis of Spatial Auto Correlation (SPAC) method considering different correlation distance  [in Japanese with English Abstract]
    BUTSURI-TANSA, 64(2), 127-138

47. Noguchi, T., Y. Ono, J. Kiyono, T. Horio, M. Kubo, T. Ikeda, and R. R. Putra (2010)
    Determination of the subsurface structure of Padang city, Indonesia using microtremor exploration [in Japanese with English Abstract]
    JSCE journal, A1, 66(1), 30-39

2020-2023 Japan Society for the Promotion of Science KAKENHI "KIBAN C"

2018-2020 Japan Society for the Promotion of Science KAKENHI "WAKATE"

2016-2018 Japan Society for the Promotion of Science KAKENHI "WAKATE B"

2011 Foundation for the Promotion of Engineering Research Overseas Travel Grant for Young Researchers

2012-2014 Japan Society for the Promotion of Science DC2

令和4年度物理探査学会賞 論文業績賞（奨励賞)

Best Presentation Award at 136th SEGJ conference, 5-7, June, 2017, Tokyo, Japan

Best Presentation Award at 132th SEGJ conference, 11-13, May, 2015, Tokyo, Japan

Excellent Student Presenter at Near Surface Geophysics Asia Pacific Conference, 17-19, July, 2013, Beijing, China