Deep seafloor borehole observatories for seismogenic zone monitoring

Eiichiro Araki, Toshinori Kimura, Yuya Machida, Takashi Yokobiki, Shuhei Nishida, Katsuyoshi Kawaguchi, Masanori Kyo, Tomo Saruhashi, Sean Toczko, Demian Saffer, Achim Kopf

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Real-time borehole observation system for seismogenic zone monitoring called long-term borehole monitoring system (LTBMS) was developed to give better access to the seismogenic faults nucleating earthquakes while avoiding observational effects of dampening by shallow soft sediment and oceanographic noise commonly experienced in the seafloor observation. Installation of the LTBMS has been conducted in two location in the Nankai Trough, Japan, near the rupture zone of the Tonankai earthquakes during the NantroSEIZE program of the Integrated Ocean Drilling Program (IODP). The LTBMSs were connected to the real-time seafloor cabled observation network called DONET and initial data from the LTBMS demonstrated their ability to capture slow crustal deformation and high fidelity earthquake records that are difficult by seafloor observatories.

Original languageEnglish (US)
Title of host publicationTechno-Ocean 2016
Subtitle of host publicationReturn to the Oceans
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)9781509024452
StatePublished - Mar 30 2017
Event16th Techno-Ocean, Techno-Ocean 2016 - Kobe, Japan
Duration: Oct 6 2016Oct 8 2016

Publication series

NameTechno-Ocean 2016: Return to the Oceans


Other16th Techno-Ocean, Techno-Ocean 2016

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Water Science and Technology
  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Instrumentation


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