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.

DANWAKAI has resumed in-person meeting in the Seiminar Room in September with live-streaming vir Zoom. If you would like to attend the Zoom session, please pre-register using the form below by April 16, 2026, 12:00pm.　

URL: https://forms.gle/BBFWpLzRr1ipBqRZA

The zoom URL and password will be announced on the day of the event to registered participants .

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, April 17, 2026  13:30～(JST)

　　　　Place: ERI Bldg.1, 2nd floor, Seminar Room

　　　　　　　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.

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1. 13:30-13:45

TITLE: Depth of source of volcanic ash ejected in the 2018 vulcanian eruptions at Shinmoe-dake estimated from tilt changes and the image of eruption site below the summit crater: continued

AUTHOR: *Jun OIKAWA (Nihon Univ.), Yuta MAEDA (Nagoya Univ.) and Yasuhisa TAJIMA (Nippon Koei)

2. 13:45-14:00

TITLE: Phase boundaries and desynchronization in the single-defect Olami-Feder-Christensen model: Toward understanding earthquake power laws

AUTHOR: *Tetsuto OTANI and Nobuki KAME

SUMMARY: We report on the mechanism of phase transitions in a discrete model of earthquakes; this work has been published in Physical Review E (https://doi.org/10.1103/7c3x-j5xf)

3. 14:00-14:15

TITLE: Application of the fast and robust bootstrap method to the uncertainty analysis of the magnetotelluric transfer function

AUTHOR: *Yoshiya USUI･Makoto UYESHIMA･Tasuku HASHIMOTO･Masataka MASUDA･Takahiro AKIYAMA , Shin’ya SAKANAKA (Akita University), Masahiro ICHIKI･ Toshiki KAIDA(Tohoku University), Yusuke YAMAYA(National Institute of Advanced Industrial Science and Technology), Yasuo OGAWA(Institute of Science Tokyo, Tohoku University)

*Speaker