Scientists turn undersea fiber optic cables into seismographs

https://techcrunch.com/2019/11/28/scientists-turn-undersea-fiber-optic-cables-into-seismographs/

Fiber optic communications cables can be “hacked” for more than just to transport our data.

New research from Berkeley could turn existing undersea fiber optic cables into a network of seismographs.

9 Comments

  1. Tomi Engdahl says:

    Over the past decade, researchers in the oil and gas industry developed a technique, distributed acoustic sensing (DAS), to solve a range of .
    https://physicstoday.scitation.org/doi/abs/10.1063/PT.3.3866?journalCode=pto

    Reply
  2. Tomi Engdahl says:

    Distributed Acoustic Sensing Using Dark Fiber for Near-Surface Characterization and Broadband Seismic Event Detection
    https://www.nature.com/articles/s41598-018-36675-8

    Reply
  3. Tomi Engdahl says:

    Distributed Acoustic Sensing Using Dark Fiber for Near-Surface Characterization and Broadband Seismic Event Detection
    https://www.nature.com/articles/s41598-018-36675-8

    techniques could be utilized to transform infrastructure noise in the 2–30 Hz band (e.g. surface waves generated by cars, trucks, and trains) into accurate and stable 1-D estimates of shear wave velocity from 0–30 m depth using DAS. While prior studies have examined data acquired on a fit-for-purpose array, the processing strategy proposed can be easily adapted to dark fiber deployments.

    Reply
  4. LazerodWafer says:

    Monitoring seismic activity all over the world is an important task gas industry developed a technique.

    LazerodWafer
    https://laserod.com/

    Reply

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