(研究テーマ・キーワード)

  • 活断層の活動性評価,地震と地質構造との関係,地震テクトニクス(遠田)
  • 地震の連鎖,地震のトリガリング,断層間相互作用,誘発地震,余震活動(遠田)
  • 地震の長期評価,地震ハザード評価,地震発生確率(遠田)
  • 海溝型地震津波の発生頻度推定,津波の規模評価(石澤)
  • 放射性炭素年代測定,暦年較正,ベイズ推定(石澤)

(最近の研究成果)

  • Ishimura D., Tsutsumi H., Toda S., Fukushima Y., Kumahara Y., Takahashi N., Ichihara T., Takada K., 2021, Repeated triggered ruptures on a distributed secondary fault system: an example from the 2016 Kumamoto earthquake, southwest Japan, Earth, Planets and Space, 73:39.
  • Peng W., Toda S., 2021, Tests of Remote Dynamic Aftershock Triggering by Small Mainshocks Using Taiwan’s Earthquake Catalog, Seismological Research Letters, xx, 1-13.
  • Takahashi N., Toda S., 2021, Evaluating variability in coseismic slips of paleoearthquakes from an incomplete slip history: an example from displaced terrace flights across the Kamishiro fault, centra Japan, Progress in Earth and Planetary Science, 8:15.
  • Goto K., T. Ishizawa, Y. Ebina, F. Imamura, S. Sato, K. Udo, 2021, Ten years after the 2011 Tohoku-oki earthquake and tsunami: Geological and environmental effects and implications for disaster policy changes, Earth-Science Reviews, 212, 103417. https://doi.org/10.1016/j.earscirev.2020.103417
  • Kumazawa T., Y. Ogata, S. Toda, 2020, Wide-area seismicity anomalies before the 2011 Tohoku–Oki earthquake, Geophysical Journal International, Volume 223, Issue 2, November 2020, 1304–1312.  https://doi.org/10.1093/gji/ggaa356
  • Toda S., Stein R.S., 2020, Long‐ and Short‐Term Stress Interaction of the 2019 Ridgecrest Sequence and Coulomb‐Based Earthquake Forecasts, Bulletin of Seismological Society of America. https://doi.org/10.1785/0120200169
  • 高橋直也・内田嗣人・池田倫治・遠田晋次,2020,2019年カリフォルニア州リッジクレスト地震の概要と最近の地震断層調査の動向,活断層研究,53,51–65.
  • Tetsuka, H., K. Goto, Y. Ebina, D. Sugawara, T. Ishizawa, 2020, Historical and geological evidence for the seventeenth-century tsunamis along Kuril and Japan trenches: implications for the origin of the AD 1611 Keicho earthquake and tsunami, and for the probable future risk potential, Geological Society of London, Special Publications, 501. https://doi.org/10.1144/SP501-2019-60
  • Ishizawa, T., K. Goto, Y. Yokoyama, J., Goff, 2020, Dating tsunami deposits: Present knowledge and challenges. Earth-Sci. Rev., 200, 102971. https://doi.org/10.1016/j.earscirev.2019.102971
  • Iwai, S., K. Goto, T. Ishizawa, 2019, A gigantic boulder transported by the 2011 Tohoku-oki tsunami, Isl. Arc, e12321. https://doi.org/10.1111/iar.12321
  • Ikeda, M., S. Toda, K. Onishi, N. Nishizaka, and S. Suzuki, 2019, The 1596 Keicho earthquake, a 5-day, 300-km-long sequential rupture event in the Median Tectonic Line fault zone, southwestern Japan, J. Geophys. Res., 124, https://doi.org/10.1029/2018JB017264.
  • Ishizawa, T., K., Goto, Y., Yokoyama, Y., Miyairi, 2019, Non-destructive analyses to determine appropriate stratigraphic level for dating of tsunami deposits. Mar. Geol., 412, 19-26. https://doi.org/10.1016/j.margeo.2019.02.009
  • Stein, R. S., T. Hobbs, C. Rollins, G. Ely, V. Sevilgen, and S. Toda, 2019, Magnitude 7.1 earthquake rips northwest from the M6.4 just 34 hours later, Temblor, http://doi.org/10.32858/temblor.037
  • Toda S., Stein R.S., 2019, Quake Connectivity: 3 January 2019 M=5.1 Japan shock was promoted by the April 2016 M=7.0 Kumamoto earthquake, Temblor, http://doi.org/10.32858/temblor.003
  • 遠田晋次・石村大輔,2019,熊本地震など内陸大地震で見いだされた誘発性地表地震断層と短い活断層の評価,第四紀研究,58,121-136. J-stage
  • Ishizawa, T., K., Goto, Y., Yokoyama, Y., Miyairi, C., Sawada, K., Takada, 2018, Reducing the age range of tsunami deposits by 14C dating of rip-up clasts. Sediment. Geol., 364, 334-341. https://doi.org/10.1016/j.sedgeo.2017.09.008
  • Ishimura, D., S. Toda, S. Mukoyama, S. Homma, K. Yamaguchi, and N. Takahashi, 2019, Three-dimensional surface displacement and surface ruptures associated with the 2014 Mw6.2 Nagano earthquake using differential LiDAR, Bulletin of Seismological Society of America, 109, 780-796. BSSA site.
  • Fukushima, Y., Toda, S., Miura, S., Ishimura, D., Fukuda, J., Demachi, T., and Tachibana, K., Extremely early recurrence of intraplate fault rupture following the Tohoku-Oki earthquake, Nature Geoscience, doi:10.1038/s41561-018-0201-x, 2018. NGS site.
  • Toda, S., and R. S. Stein, Why aftershock duration matters for probabilistic seismic hazard assessment, Bull. Seismol. Soc. Amer., 108, 1414-1426, 2018. BSSA site
  • Ishizawa, T., K., Goto, Y., Yokoyama, Y., Miyairi, C., Sawada, Y., Nishimura, D., Sugawara, 2017. Sequential radiocarbon measurement of bulk peat for high-precision dating of tsunami deposits. Quat. Geochronol., 41,202-210. https://doi.org/10.1016/j.quageo.2017.05.003
  • 石澤尭史・渡部真史・後藤和久・池原 研・Simon Wallis・井龍康文,2016,英国シェトランド諸島における古津波痕跡,地質学雑誌,122(3),Ⅰ-Ⅱ.https://doi.org/10.5575/geosoc.2016.0002
  • (その他の論文リスト)

(公開プログラム)

  • Coulomb 3.3(GUI形式の断層変位・歪み・応力計算プログラム,USGSダウンロードサイト
  • Coulomb 3.4(最新版,随時更新,ダウンロード準備中)