The 945th DANWAKAI

Earthquake Research Institute
The University of Tokyo
Kazushige Obara

Announcement of the 954th DANWAKAI

(Danwakai: ERI Holds “Danwakai”, a monthly meeting where its members present their most recent academic and technical achievements, on a
Friday of every month. Danwakai is open to the public.)

Date: Friday, 18 November 13:30-
Place: ERI Bldg.1, 2nd floor, Seminer Room1

1. 13:30-13:45
TITLE: Reconstruction of a 2D seismic wavefield by seismic gradiometry
Ryota TAKAGI (Tohoku Univ.) and Kazushige OBARA

2. 13:45-14:00
TITLE: Probing shallow part of a fault plane with the muon detector in a borehole
AUTHOR: *Katsuya YAMAZAKI・Akimichi TAKETA and Kentaro OMURA (NIED)

3. 14:00-14:15
TITLE: Brief Survey Summary of Nishino-Shima Volcano in 2016
AUTHOR: *M. Takeo・ T. Ohminato・M. Ichihara・F. Maeno・T. Kaneko・
M. Shinohara・K. Baba・K. Nishida・A. Yasuda・A. Watanabe,
H. Sugioka (Kobe Univ.), Y. Hamano・N. Tada (JAMSTEC), S. Nakano (AIST),
M. Yoshimoto (Mt. Fuji Res. Inst.), K. Kawakami (Forestry & Forest Prod. Res. Inst.), T. Chida (Ministry of Environment), A. Takagi and Y. Nagaoka (MRI)

4. 14:15-14:30
TITLE: Observation of Nishinoshima Islet using an unmanned autonomous helicopter (1): Sampling of erupted materials and shooting 4K-video footage of the edifice
AUTHOR: *Kaneko T.・Ohminato T.・TakeoM.・Koyama T.・Maeno F.・
Yasuda A.・Nakada S.・Watanabe. A., Takagi A. and Nagaoka Y. (MRI, JMA)

5. 14:30-14:45
TITLE: Observation of Nishinoshima Islet using an unmanned autonomous helicopter (2) : Petrological study
AUTHOR: * Yasuda A.・Kaneko T.・Ohminato T.・Maeno F.・Nakada S.・
Hokanishi N.・Takeo M. and Takagi A. (MRI, JMA)

6. 14:45-15:00
TITLE: Long-term seafloor seismic observations around Nishinoshima Volcano using LT-OBSs (second report)
AUTHOR: * M. Shinohara・M. Ichihara・S. Sakai・T. Yamada・M. Takeo,
H. Sugioka (Kobe Univ.), Y. Nagaoka・A. Takagi(MRI, JMA), T. Morishita・T. Ono and A. Nishizawa (HOD, JCG)
SUMMARY: Long-term seafloor seismic observations are being performed using LT-OBSs around Nishinoshima to monitor volcanic activity.

7. 15:00-15:15
TITLE: Towards real-time monitoring of remote-island volcanos using an autonomous vehicle of the Wave Glider
AUTHOR: * Yozo Hamano (JAMSTEC), Hiroko Sugioka (Kobe Univ.),
Mie Ichihara・Kiwamu Nishida・Kiyoshi Baba, Noriko Tada (JAMSTEC)