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Fiber optic monitoring of active faults at the seafloor: I the FOCUS project

By Marc-andre 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 and Laura Beranzoli

Abstract

Laser reflectometry (BOTDR), commonly used for structural health monitoring (bridges, dams, etc.), will for the first time be applied to study movements of an active fault on the seafloor 25 km offshore Catania Sicily. The goal of the European funded FOCUS project (ERC Advanced Grant) is to connect a 6-km long strain cable to the EMSO seafloor observatory in 2100 m water depth. Laser observations will be calibrated by seafloor geodetic instruments and seismological stations. A long-term goal is the development of dual-use telecom cables with industry partners

Publisher: 'EDP Sciences'
Year: 2019
DOI identifier: 10.1051/photon/2019S432
OAI identifier: oai:archimer.ifremer.fr:60430
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