Simultaneous seismic observation by DAS and accelerometers using off-Sanriku seafloor cable system without dark fiber

Masanao Shinohara

Presentation information

[E] Oral

S (Solid Earth Sciences ) » S-TT Technology & Techniques

[S-TT48] Advancing Earth Science through Fiber Optic Sensing Techniques and Integrated Analysis

Thu. May 28, 2026 1:45 PM - 3:15 PM Convention Hall (CH-A) (International Conference Hall, Makuhari Messe)

Chairperson:Miyazawa Masatoshi(Disaster Prevention Research Institute, Kyoto University)

2:15 PM - 2:30 PM

[STT48-03] Simultaneous seismic observation by DAS and accelerometers using off-Sanriku seafloor cable system without dark fiber

*Masanao Shinohara¹, Mikael Mazur², Martin Karrenbach³, Nicolas K. Fontaine², Roland Ryf², David T. Neilson², Shun Fukushima⁴, Tomoaki Yamada¹, Shinichi S. Tanaka¹, Hironori Otsuka¹, Kevin Smith⁵, Artem Goncharuk⁵, Bob Clapp⁵ (1. Earthquake Research Institute, University of Tokyo, 2. Nokia Bell Labs, 3. Seismics Unusual LLC, 4. Faculty of Science, Hokkaido University, 5. X-The Moonshot Factory)

Keywords:Distributed Acoustic Sensing (DAS), Wavelength Division Multiplexing (WDM), Two-dimensional DAS observation, An active/lit fiber