ERI Holds “DANWAKAI”, a monthly meeting where its members present their most recent academic and technical achievements, once a month on Friday of every month. DANWAKAI is open to the public.
Please refrain from secondary distribution of the URL to be provided. Due to copyright issues, recording of the video and audio distributed is strictly prohibited.
Date: Friday, January 19, 2024 13:30～(JST)
Place: ERI Bldg.1, 2nd floor, Seminar Room1
Livestream Zoom Webinar
* The zoom URL and password required for participation will be provided on the day of the event to those who wish to attend.
1. 13:30-13:45
TITLE: Electrical resistivity structure in the northern Kanto region (preliminary report)
AUTHOR: *Yoshiya USUI･Makoto UYESHIMA, Shinya SAKANAKA(Akita University), Masahiro ICHIKI(Tohoku University), Yusuke YAMAYA(AIST) and Yasuo OGAWA(Tohoku University)
2. 13:45-14:00
TITLE: Quantifying magma overpressure beneath a submarine caldera: A mechanical modeling approach to tsunamigenic trapdoor faulting near Kita-Ioto Island Japan
AUTHOR: *Osamu SANDANBATA and Tatsuhiko SAITO（National Research Institute for Earth Science and Disaster Resilience）
SUMMARY: At a submarine caldera near Kita-Ioto Island, a tsunamigenic volcanic earthquake took place in 2008. By utilizing a remotely observed tsunami data with a new mechanical earthquake model of “trapdoor faulting”, we attempt to quantify the magma overpressure beneath the submarine caldera. This work has been recently published in JGR Solid Earth (doi:10.1029/2023JB027917).
3. 14:00-14:15
TITLE: Geochemical characteristics of rhyolitic volcanism in the southern Izu intra-arc rift zone
AUTHOR: *Satoru HARAGUCHI, Jun-Ichi KIMURA(JAMSTEC), Ryoko SENDA(Kyushu Univertsity), Koichiro FUJINAGA(Chiba Institute of Technology), Kentaro NAKAMURA(University of Tokyo), Yutaro TAKAYA(Waseda University) and Teruaki ISHII (Shizuoka University)
SUMMARY: In the Izu intra-arc rift zone, tsunami was occurred and pumice raft was found during last October, geophysical and geological surveys were performed in the early 1990’s led by the then Ocean Research Institute, the University of Tokyo. As part of this, we published a study of geochemical variations of rhyolitic volcanism and origin of magmatism in this region in “Contirbutions to Mineralogy and Petroplogy (doi: 10.1007/s00410-017-1345-1)”.
4. 14:15-14:30
TITLE: Coseismic coastal uplift and tsunami traces identified along the northwest coast of the Noto Peninsula associated with 2024 Noto Peninsula Earthquake
AUTHOR: *Tatsuya ISHIYAMA, Daisuke HIROUCHI(Shinshu University), Nobuhisa MATTA (Okayama University), Ryo TATEISHI(University of Toyama) and Ken-ichi YASUE(University of Toyama)
SUMMARY: We provide preliminary results of a field investigation conducted along the northwest coast of the Noto Peninsula, suggesting coseismic coastal uplift and tsunami traces associated with the 2024 Noto Peninsula Earthquake (M7.6).
*Speaker