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Fiber optic cables double as early earthquake detectors

Early earthquake detectors could soon be a new feature of fiber optic cabling.

@anthony256
Published Sun, Oct 22 2017 9:12 PM CDT   |   Updated Tue, Nov 3 2020 11:53 AM CST

The cable that is providing millions of people with internet access, and even the cable you have running to your router - heck, the same fiber optic cable that is going into my router here as I type this, could soon be an early earthquake detector.

Fiber optic cables double as early earthquake detectors | TweakTown.com

Researchers have developed a new technology that detects seismic activity through the "jiggling" in fiber optic cables, with 'laser interrogators' looking for disturbances in the fiber, and then sending that information about the magnitude and direction of the tremors. Using fiber-based detections isn't something that's completely new, but it has previously been used for acoustic sensing that needed them wrapped in cement,or sticking them to a surface so that you ensured contact was made to the ground.

But this new system is capable of detecting different types of seismic waves, so it would know if the impending earthquake was something worth alerting someone, or a system somewhere about it. The new system is also capable of detecting very small, or localized quakes that would otherwise not be noticed.

Right now this new earthquake-detecting feature in fiber optic cable is limited to the physical size of the fiber rollout, so it could miss out on rural and country areas. The current proof of concept is just a 3-mile loop around Stanford University, but it could be something that will be adopted more in the future as this technology matures.

NEWS SOURCE:engadget.com

Anthony is a long time PC enthusiast with a passion of hate for games built around consoles. FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with custom-built PCs. His addiction to GPU tech is unwavering.

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