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FOCUS SIGNED

Fiber Optic Cable Use for Seafloor studies of earthquake hazard and deformation

Total Cost €

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EC-Contrib. €

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Partnership

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 FOCUS project word cloud

Explore the words cloud of the FOCUS project. It provides you a very rough idea of what is the project "FOCUS" about.

micro    telecommunication    km    capability    displacement    seismic    mapped    networks    communication    seafloor    surveys    infrastructure    200    monitoring    expand    poised    monitor    thirds    two    catania    retired    undersea    stations    surface    dual    fault    geodetic    small    earth    anticipated    tremendous    faults    seismics    lt    breakthrough    network    cm    instruments    technique    distances    revolutionize    mediterranean    tectonics    either    caused    deformation    once    bathymetry    unprecedented    engineering    mm    quantify    natural    inaccessible    cascadia    tested    botdr    zones    never    marine    optic    secondary    outcomes    modern    pipelines    strains    independent    active    observations    warning    resolution    bridges    largely    site    fiber    28    laser    seismological    offshore    covered    potentially    displacements    dams    earthquake    structural    north    cable    structures    reflectometry    trace    japan    turn    industry    cables    primary    seismology    calibrated    crosses    water    emso    alfeo    hazard    health    region    geophysical    sicily   

Project "FOCUS" data sheet

The following table provides information about the project.

Coordinator
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS 

Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794
website: www.cnrs.fr

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Total cost 3˙487˙910 €
 EC max contribution 3˙487˙910 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-ADG
 Funding Scheme ERC-ADG
 Starting year 2018
 Duration (year-month-day) from 2018-10-01   to  2023-09-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS FR (PARIS) coordinator 2˙219˙272.00
2    INSTITUT FRANCAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER FR (PLOUZANE) participant 723˙013.00
3    I.D.I.L. SAS (INGENIERIE-DEVELOPPEMENT-INSTRUMENTATION-LASER) FR (LANNION) participant 545˙625.00

Map

 Project objective

Two-thirds of the Earth’s surface is covered by water and thus largely inaccessible to modern networks of seismological instruments. The FOCUS project is poised to revolutionize seismic monitoring of the seafloor through a novel use of fiber optic cables to improve hazard assessment and increase early warning capability. Laser reflectometry using BOTDR, commonly used for structural health monitoring of large-scale engineering structures (e.g. - bridges, dams, pipelines, etc.), can measure very small strains (< 1 mm) at very large distances (10 - 200 km). It has never been used to monitor deformation caused by active faults on the seafloor. The objective of the FOCUS project is to demonstrate that this technique can measure small (1 - 2 cm) displacements on a primary test site offshore Sicily where the 28 km long EMSO Catania cable crosses the recently mapped North Alfeo Fault. BOTDR observations must be calibrated by other independent measurements. Therefore, targeted marine geophysical surveys of the seafloor along the trace of the cable and faults are planned, with micro-bathymetry, high-resolution seismics, seafloor seismic stations and use of seafloor geodetic instruments to quantify fault displacement. Once the BOTDR fault-monitoring technique has been tested and calibrated offshore Sicily, the goal is to expand it to other fiber optic cable networks, either existing research networks in earthquake hazard zones (Japan, Cascadia) or to the Mediterranean region through access to retired telecommunication cables, or through the development of dual-use cables with industry partners, (two of the anticipated outcomes of the FOCUS project). The novel secondary use of fiber optic cables as described by FOCUS represents a potentially tremendous breakthrough in seismology, tectonics and natural hazard early warning capability, one that could turn Earth’s future undersea communication infrastructure into a seismological monitoring network of unprecedented scale.

 Publications

year authors and title journal last update
List of publications.
2019 Marc-André Gutscher, Jean-Yves Royer, David Graindorge, Shane Murphy, Frauke Klingelhoefer, Chastity Aiken, Antonio Cattaneo, Giovanni Barreca, Lionel Quetel, Giorgio Riccobene, Florian Petersen, Morelia Urlaub, Sebastian Krastel, Felix Gross, Heidrun Kopp, Lucia Margheriti, Laura Beranzoli
Fiber optic monitoring of active faults at the seafloor: I the FOCUS project
published pages: 32-37, ISSN: 1629-4475, DOI: 10.1051/photon/2019s432
Photoniques issue number 3, (6 per year) 2020-04-03

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