Seminar

The 987th DANWAKAI(program)

(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, 22 November 13:30-
Place: ERI Bldg.1, 2nd floor, Seminar Room1

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1. 13:30-13:45
TITLE: Synchronization of megathrust earthquakes to periodic slow slip events
in a single-degree-of-freedom spring-slider model
AUTHOR: *Makiko OHTANI・Nobuki KAME and Masao NAKATANI

2. 13:45-14:00
TITLE: Speedup of Large-scale 3D Seismic Soil Liquefaction Analysis
AUTHOR: *Ryota KUSAKABE・Tsuyoshi ICHIMURA・Kohei FUJITA・Muneo HORI
and Lalith WIJERATHNE
SUMMARY: We developed a method for large-scale 3D soil liquefaction analysis
accelerated by an algorithm which considers the characteristics of
computer architecture and soil liquefaction analysis.

3. 14:00-14:15
TITLE: IODP Drilling into Nankai Trough Seismogenic Zone: Achievements
and Lessons
AUTHOR: *Masataka KINOSHITA, Gaku KIMURA(Tokyo University of Marine Science
and Technology) and Scientists on Nankai Trough Seismogenic Zone Experiments
SUMMARY: We summarize achievements and lessons from IODP drilling
at the Nankai seismogenic zone since 2007.

4. 14:15-14:30
TITLE: Signal processing to detect earthquake-induced prompt gravity changes
AUTHOR: *Masaya KIMURA・Nobuki KAME・Shingo WATADA・Makiko OHTANI・
Akito ARAYA・Yuichi IMANISHI・Masaki ANDO(Graduate School of Science
Dept. of Physics, The university of Tokyo) and Takashi KUNUGI(NIED)

5. 14:30-14:45
TITLE: The fundamental nature of a transient elastic response to prompt gravity
perturbations
AUTHOR: *Nobuki KAME and Masaya KIMURA
SUMMARY: We analytically show that an unusual net-inner-force-free deformation
results from action at a distance with the inverse-square law.

*Speaker