Science and Technology
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Science and Technology
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Mon, March 17, 2025
[ Yesterday Afternoon ] - IFLScience
A New Way To Detect Pacific Earthquakes Using Deep-Sea Cables Shows Groundbreaking Results
Tue, March 11, 2025
[ Last Tuesday ] - IFLScience
NASA Departments Eliminated As President Trump Sets His Sights On Mars
[ Tue, Mar 11th ] - IFLScience
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Sat, March 8, 2025
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Fri, March 7, 2025
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Thu, March 6, 2025
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Wed, March 5, 2025
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Fri, February 21, 2025
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Thu, January 9, 2025
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Tue, January 7, 2025
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Polar Vortex And Polar Jet Stream: What's Behind The Freezing Weather In The US?
Fri, January 3, 2025
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Thu, January 2, 2025
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Tue, December 24, 2024
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Wed, December 11, 2024
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Tue, December 10, 2024
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A New Way To Detect Pacific Earthquakes Using Deep-Sea Cables Shows Groundbreaking Results


Published on 2025-03-17 13:42:20 - IFLScience
  Print publication without navigation

  • The Southern Cross NEXT is a 15,857-kilometre (9,853-mile) network of submarine cables that links Sydney and Auckland, as well as Los Angeles and the Pacific Islands of Fiji, Tokelau, and Kiribati. Using fiber-optic cables, it provides high-capacity broadband internet connectivity between this part of the Pacific.

A groundbreaking study has demonstrated a novel method for detecting earthquakes in the Pacific Ocean by utilizing existing deep-sea fiber optic cables. Researchers from the University of California, Berkeley, and the Monterey Bay Aquarium Research Institute (MBARI) have repurposed these cables, originally laid for telecommunications, to sense seismic activity through a technique known as Distributed Acoustic Sensing (DAS). This approach involves sending laser pulses down the fiber optic lines and analyzing the backscatter to detect minute changes in the cable's environment, effectively turning the cables into thousands of seismic sensors. The study, published in Nature, showcased the system's ability to record the 2021 magnitude 6.0 earthquake off the coast of Eureka, California, with unprecedented detail, capturing not only the main shock but also the aftershocks and even the ocean's ambient noise. This innovative use of infrastructure could significantly enhance our ability to monitor seismic activity in real-time, potentially improving early warning systems for tsunamis and other seismic events.

Read the Full IFLScience Article at:
[ https://www.iflscience.com/a-new-way-to-detect-pacific-earthquakes-using-deep-sea-cables-shows-groundbreaking-results-78451 ]