(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.)
Date: Friday March 18 13:30-
Place: Web Meeting (Zoom)
*URL and password will be provided by internal e-mail on February 18.
TITLE: Feasibility study for ultra-high resolution seismic profiling using broadband vibrator across active faults
AUTHOR: *Tatsuya ISHIYAMA, Hiroshi SATO (Shizuoka Univ.), Naoko KATO (Nihon Univ.), Hideo SAITO and Susumu ABE (JGI, Inc.)
SUMMARY: We show results of feasibility study of ultra-high resolution seismic reflection profiling with broadband vibrator and discuss its applicability to subsurface imaging of active faults.
TITLE: Migration-based event location for local earthquakes recorded in Ocean Bottom Seismometers (OBSs).
AUTHOR: *Shinji YONESHIMA and Kimihiro MOCHIZUKI
SUMMARY: We will introduce the time pick-free event location method for OBS records.
TITLE: Convolutional Neural Network to Detect Deep Low-Frequency Tremors from Past Seismogram Images
AUTHOR: Ryosuke KANEKO, *Hiromichi NAGAO, Shin-ichi ITO, Hiroshi TSURUOKA
and Kazushige OBARA
SUMMARY: We applied a convolutional neural network to extract tremors recorded in the past seismogram images of the Kumano observatory from 1966 to 1977.
TITLE: Report on electromagnetic survey in Izu-oshima
AUTHOR: *Takao KOYAMA･Kiyoshi BABA, Noriko Tada (JAMSTEC), Yoshiya USUI
and Makoto UYESHIMA
SUMMARY: Report on installation of the electro-magnetometers on land and sea-bottom of Izu-Oshima volcano.