The 1033rd DANWAKAI(program)

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.

ed 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, February 16, 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: Spatial and temporal evolution of the seismicity associated with the 2024 M7.6 Noto-Hanto earthquake


2. 13:45-14:00

TITLE: Multiphase effects on the hydrodynamics of the gas thrust region of an eruptive volcanic mixture

AUTHOR: *Deboprasad TALUKDAR and Yujiro SUZUKI

SUMMARY: This study presents a parametric characterization of the maximum vertical velocity of a supersonic underexpanded polydisperse jet injected into quiescent atmosphere mimicking a volcanic eruption cloud with the variation of solid particles’ volume fraction and diameter.

3. 14:00-14:15

TITLE: High resolution seismic profiling blind active faults for defining their structures and activities

AUTHOR: *Tatsuya ISHIYAMA, Toshimichi NAKANISHI (Museum of Natural and Environmental History, Shizuoka), Naoko KATO, Hideo SAITO and Susumu ABE (JGI, Inc.)

SUMMARY: We show preliminary results and subsequent progress of revealing subsurface structures and activities of blind active faults by high resolution seismic reflection profiling.

4. 14:15-14:30

TITLE: Slip Distribution of the 2024 Noto Peninsula Earthquake Estimated from Tsunami Waveforms and GNSS Data

AUTHOR: Yushiro FUJII (Building Research Institute) and *Kenji SATAKE

SUMMARY: The inversion of tsunami waveforms and GNSS data indicate that the coseismic slip of 3-4 m on subfaults on the northern coast of Noto Peninsula, and little slip on the northeastern and southwestern subfaults in the aftershock area.