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Details of Award

NERC Reference : NE/S012877/1

Geodynamics and Tectonics Plate Analysis based on Distributed Optical Fibre Acoustic Sensor

Grant Award

Principal Investigator:
Professor G Brambilla, University of Southampton, Optoelectronics Research Centre (ORC)
Co-Investigator:
Dr S Kodaira, Japan Agency for Marine-Earth Sci & Tech, UNLISTED
Co-Investigator:
Dr E Araki, Japan Agency for Marine-Earth Sci & Tech, Centre for Earthquake and Tsunami
Science Area:
None
Overall Classification:
Unknown
ENRIs:
None
Science Topics:
Microseismicity
Earth Engineering
Earthquakes
Seismic analysis
Seismic waves
Optical Devices & Subsystems
Fibre-optic Sensors
Instrumentation Eng. & Dev.
Optical Fibres
Real-time Monitoring
Continental crust
Earthquakes
Plate dynamics
Seismicity
Slips and faults
Earth Surface Processes
Abstract:
Megathrust earthquakes have long occurred repeatedly in Japan. Since 2011, an oceanic observation networks constituted by point sensors connected by optical fibres have been developed to monitor seismotectonic activities in this region. In this project we expand the seismometer capabilities by using the optical fibre network itself as a distributed seismometer providing thousands of high resolution seismic measurements aimed at clarifying the source of the very low frequency earthquakes based in the accretionary wedge between the Philippine Sea Plate and the Eurasian continent, which were discovered by the DONET stations in 2015. After initial tesing in JAMSTEC own fiber optic cables off Toyohashi, Aichi, Japan and Hatsushima, Shizuoka, Japan, a portable unit will be manufactured and will be taken on the research vessel R/V Shinsei-maru to be connected to the 10 km fibre optic extension cables via a fibre optic cable of the shipboard remotely operated vehicle. The novel distributed seismometer will be tested in the DONET stations to produce a 3D map of seismic activity along the Nankai through and investigate possible links links with the structure of the subducting plate interface.
Period of Award:
26 Mar 2019 - 25 Mar 2024
Value:
£472,355
Authorised funds only
NERC Reference:
NE/S012877/1
Grant Stage:
Completed
Scheme:
RCUK
Grant Status:
Closed
Programme:
UKRI-JSPS

This grant award has a total value of £472,355  

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FDAB - Financial Details (Award breakdown by headings)

DI - Other CostsIndirect - Indirect CostsDA - InvestigatorsDI - StaffDA - Estate CostsDI - T&SDA - Other Directly Allocated
£67,482£156,762£46,018£130,580£31,991£26,830£12,693

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