https://www.samm.com/
SAMM Teknoloji | Telecom, Fiber Optic Sensing, IT & Heating
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https://www.scientificamerican.com/article/telecom-fiber-optic-cables-measured-an-earthquake-in-incredible-detail/
Telecom Fiber-Optic Cables Measured an Earthquake in Incredible Detail | Scientific American
Dec 5, 2025 - Fiber optics that connect the world can detect its earthquakes, too
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