Journal
NATURE COMMUNICATIONS
Volume 10, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-019-13793-z
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Funding
- CNRS/IN2P3
- Region Sud, France (CPER the State (DRRT))
- Europe (FEDER)
- SEAFOOD project
- French Agence Nationale de la Recherche [ANR-17-CE04-0007]
- Universite Cote d'Azur IDEX program [UCAJEDI ANR-15-IDEX-0001]
- Agence Nationale de la Recherche (ANR) [ANR-17-CE04-0007] Funding Source: Agence Nationale de la Recherche (ANR)
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Two thirds of the surface of our planet are covered by water and are still poorly instrumented, which has prevented the earth science community from addressing numerous key scientific questions. The potential to leverage the existing fiber optic seafloor telecom cables that crisscross the oceans, by using them as dense arrays of seismo-acoustic sensors, remains to be evaluated. Here, we report Distributed Acoustic Sensing measurements on a 41.5 km-long telecom cable that is deployed offshore Toulon, France. Our observations demonstrate the capability to monitor with unprecedented details the ocean-solid earth interactions from the coast to the abyssal plain, in addition to regional seismicity (e.g., a magnitude 1.9 micro-earthquake located 100 km away) with signal characteristics comparable to those of a coastal seismic station.
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