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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.

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

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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