International Symposium on the Centennial of
the 1923 Kanto Earthquake

The "International Symposium on the Centennial of the 1923 Kanto Earthquake" was held on October 23-24, 2023. We are grateful to all the contributors of this symposium.
Participants: 248 people


　General information


　Scope　

    100 years have passed since the 1923 Kanto earthquake struck the capital city of Japan. Many efforts have been made to understand
    the nature of the earthquake, structure and environment of the source fault, slip deficit distribution along the plate boundary,
    recurrence history and probability of future earthquakes and stress reloading to the fault. The study on similar near-city earthquakes
    in the past and the assessment of such events in the future are also done in some places in the world. In this symposium,
    we overview such efforts and discuss the future directions of earthquake study in Kanto and other urban areas.


　News　

  • The schedule and program have been updated.

    • We have added "16:30-16:45 Discussion" on Day 1 of the program and "15:00-15:20 Discussion and concluding remarks" on Day 2 of the program, so please check them.

    (Update date: October 19 2023)


  • Pre-Registration started
    (Deadlines: on-line participation: Oct. 18 , in-person participation: Sep. 30→Oct. 12)

    • To attend this symposium please make a pre-registration. The address of a pre-registration page has been e-mailed to those involved in this research project. Those who is not related to this research project, please contact us at yotikikaku@eri.u-tokyo.ac.jp. We will inform you the pre-registration process.

    (Update date: October 13 2023)


  • Presentation title and program

    • Presentation title and program have been uploaded below.

    (Update date: September 15 2023)


  • Reception (social party)

    • ・Date and time: October 23, 2023 17:30pm-19:30pm
    ・Location: Sanjo kaikan 1F
    ・Fee: 3,000 yen (TBD）
    ※Pre-registration to attend the reception is now closed. Payment is required at the time of symposium check-in.

    (Update date: October 13 2023)



　Agenda　

    Day 1 (October 23 Mon.)

    13:00-13:15 Opening Remarks [Yuichiro Tanioka (Chair, CCEVPR), Takashi Furumura (Director, ERI University of Tokyo)]
    13:15-13:50 Kenji Satake (Univ. Tokyo)
    　　　　　　・Past recurrence and future forecast of Kanto earthquakes
    13:50-14:25 David Wald (USGS)
    　　　　　　・Revisiting the 1923 Kanto, Japan, earthquake on its hundredth anniversary
    　　　　　　　‐ Historical data and comparative subductology

    (20 min break)

    14:45-15:20 Yuichiro Tanioka (Hokkaido Univ.)
    　　　　　　・Source model for the 1923 Kanto earthquake estimated from tsunami and coseismic deformation data
    15:20-15:55 Saburoh Midorikawa (Tokyo Tech)
    　　　　　　・Strong ground motion of the 1923 Kanto, Japan earthquake
    15:55-16:30 Takuya Nishimura (Kyoto Univ.)
    　　　　　　・Century-long geodetic data and its implication for the Kanto earthquake cycle
    16:30-16:45 Discussion
    17:30-19:30 Reception　(※Social party at Sanjo kaikan 1F)


    Day 2 (October 24 Tue.)

    9:00-9:35 Hiroo Kanamori (Caltech, online)
    　　　　　　・Anatomy of "repeating" great earthquakes and the Kanto earthquake
    9:35-10:10 Junichi Nakajima (Tokyo Tech)
    　　　　　　・Slab geometry, earthquakes, and heterogeneous structures beneath the Tokyo metropolitan area

    (20 min break)

    10:30-11:05 Ikuko Wada (Univ. Minnesota)
    　　　　　　・Thermal conditions of plate boundary earthquakes beneath Kanto
    11:05-11:40 Matt Gerstenberger (GNS Science)
    　　　　　　・Seismic hazard and forecasting for decision making in New Zealand
    11:40-12:15 Jeanne Hardebeck (USGS)
    　　　　　　・Earthquake triggering: from observations to operational forecasting

    (※Light lunch at the Foyer of the Hall)

    13:15-13:50 Roland Burgmann (UC Berkeley)
    　　　　　　・Decadal changes in crustal deformation and earthquake potential of the Hayward fault, California
    13:50-14:25 Akemi Noda (MRI)
    　　　　　　・Stress accumulation on the plate interface in the Kanto region and rupture scenarios for great thrust-type earthquakes
    14:25-15:00 Aitaro Kato and Naoki Uchida (Univ. Tokyo)
    　　　　　　・Slow and fast earthquakes in the Kanto region
    15:00-15:20 Discussion and concluding remarks


　Program　

　Invited Speakers　

    ・Roland Burgmann (UC Berkeley)
    ・Matt Gerstenberger (GNS Science)
    ・Jeanne Hardebeck (USGS)
    ・Hiroo Kanamori (Caltech, online)
    ・Saburoh Midorikawa (Tokyo Tech)
    ・Junichi Nakajima (Tokyo Tech)
    ・Takuya Nishimura (Kyoto Univ.)
    ・Akemi Noda (Meteorological Research Institute)
    ・Kenji Satake (Univ. Tokyo)
    ・Yuichiro Tanioka (Hokkaido Univ.)
    ・Ikuko Wada (Univ. Minnesota)
    ・David Wald (USGS)


　Local Organizing Committee Members

    　Yuichiro Tanioka (Chair)
    　Tatsuya Ishiyama, Naoki Uchida, Aitaro Kato, Yasuyuki Kano, Hiroe Miyake, Michiko Arai