Distributed sensing of earthquakes and ocean-solid Earth interactions on seafloor telecom cables - Archive ouverte HAL Access content directly
Journal Articles Nature Communications Year : 2019

Distributed sensing of earthquakes and ocean-solid Earth interactions on seafloor telecom cables

Anthony Sladen
D. Rivet
  • Function : Author
Jean Paul Ampuero
L. de Barros
Y. Hello
G. Calbris
  • Function : Author

Abstract

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 criss-cross 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.
Fichier principal
Vignette du fichier
s41467-019-13793-z.pdf (6.98 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-03060047 , version 1 (13-12-2020)

Identifiers

Cite

Anthony Sladen, D. Rivet, Jean Paul Ampuero, L. de Barros, Y. Hello, et al.. Distributed sensing of earthquakes and ocean-solid Earth interactions on seafloor telecom cables. Nature Communications, 2019, 10 (1), pp.5777. ⟨10.1038/s41467-019-13793-z⟩. ⟨hal-03060047⟩
84 View
55 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More