The 1022nd DANWAKAI(program)

Danwakai: 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, February 17, 2023  13:30~(JST)

    Place:  Web Meeting (Zoom)

* The zoom URL and password required for participation and those will be informed on the day of the event to those who apply from above URL.

1. 13:30-13:45

TITLE: 3-D reconstruction of an eruption column using a numerical model and radar retrieved velocity

AUTHOR: *Magfira SYARIFUDDIN(State Agriculture Polytechnic of Kupang) and Yujiro J. SUZUKI

SUMMARY: We incorporate the velocity estimates from a weather radar observation into a three-dimensional (3D) numerical model to reconstruct the volcanic ash column of a VEI-2 eruption in Sinabung, Indonesia, on 19 February 2018.

2. 13:45-14:00

TITLE: Development of observation equipment using small magnetometers (report of current developmental status)


SUMMARY: I plan to develop observation equipment using MI sensor magnetometer. In this presentation, I report the current developmental status of the equipment.

3. 14:00-14:15

TITLE: Detection and analysis of seismoacoustic wavefield of Popocatepetl volcano, Mexico.

AUTHOR: *Gerardo MENDO-PEREZ, Alejandra ARCINIEGA-CEBALLOS(UNAM, Mexico), Robin MATOZA(UCSB, United States), Alejandro ROSADO-FUENTES (UNAM, Mexico)

SUMMARY: We present the infrasound and seismic signals associated to the explosive activity of Popocatepetl volcano.


TITLE: Structures and fault activity of blind thrusts along the onshore extension of the Suruga trough

AUTHOR: *Tatsuya ISHIYAMA, Toshimichi NAKANISHI (Museum of Natural and Environmental History, Shizuoka) and Naoko KATO (Nihon Univ.)

SUMMARY:We explore the structural characteristics and historical activities of blind thrusts along the onshore extension of the Suruga trough by combining the results of borehole study with high-resolution seismic reflection profile.


TITLE: Study on old earthquakes using modern seismic observations

AUTHOR: *Motoko ISHISE・Shin’ichi SAKAI・Shigeki NAKAGAWA, Takeo ISHIBE(Association for the Development of Earthquake Prediction) and Satoko MUROTANI(National Museum of Nature and Science,Tokyo)


TITLE: Strong ground motion of the 2023 earthquakes in Southern Turkey

AUTHOR: *Hiroe MIYAKE, Hiroaki YAMANAKA (Tokyo Tech), Hisao KONDO (AIST), Ozgur Tuna OZMEN (AFAD),Aysegul ASKAN (METU) and Gulum TANIRCAN (KOERI, Bogazici Univ)