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.
11 Comments
Tomi Engdahl says:
This has been tried earlier
https://phys.org/news/2018-07-fibre-optic-cables-earthquakes.html
https://gizmodo.com/dark-fiber-optic-cables-can-measure-earthquakes-1832356545
https://science.sciencemag.org/content/360/6394/1160.full
https://www.photonics.com/Articles/Fiber_Optic_Cables_Find_Use_as_Seismic_Sensors/a63059
Tomi Engdahl says:
https://www.nsf.gov/discoveries/disc_summ.jsp?cntn_id=298962&org=NSF&from=news
Tomi Engdahl says:
https://cenic.org/blog/item/fiber-optic-cables-provide-new-tool-as-early-earthquake-sensors
Tomi Engdahl says:
The fiber optic cables that deliver your internet can also detect earthquakes
https://www.dw.com/en/the-fiber-optic-cables-that-deliver-your-internet-can-also-detect-earthquakes/a-44520210
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
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
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.
Tomi Engdahl says:
https://www.smithsonianmag.com/innovation/could-fiber-optics-detect-earthquakes-180967585/
LazerodWafer says:
Monitoring seismic activity all over the world is an important task gas industry developed a technique.
LazerodWafer
https://laserod.com/
Tomi Engdahl says:
https://blog.telegeography.com/2020-submarine-cable-map
Tomi Engdahl says:
https://hackaday.com/2024/07/30/undersea-cable-repair/