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Fiber Optic Sensors Revolutionize Earthquake Monitoring in Mendocino

9/26/2025

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Summary

Story summary

In 2024, the Mendocino earthquake in California spurred a study using fiber optic cables as seismic sensors.
Researchers imaged the rupture, determining magnitude and location.
Fiber optics monitor up to 90 miles and are used in Iceland for volcanic warnings.
The Mendocino quake was supershear, altering its hazard; slow-slip events precede major quakes, but data remain sparse, prompting telecom-access advocacy.

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Story summary

In 2024, the Mendocino earthquake in California spurred a study using fiber optic cables as seismic sensors.
Researchers imaged the rupture, determining magnitude and location.
Fiber optics monitor up to 90 miles and are used in Iceland for volcanic warnings.
The Mendocino quake was supershear, altering its hazard; slow-slip events precede major quakes, but data remain sparse, prompting telecom-access advocacy.