• About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos
  • AGU.org
  • Career Center
  • Join AGU
  • Give to AGU
  • About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos
Skip to content
  • AGU.org
  • Career Center
  • Join AGU
  • Give to AGU
Eos

Eos

Science News by AGU

Support Eos
Sign Up for Newsletter
  • About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos

fiber optics

A DAS array captures a series of earthquakes and aftershocks that shook the Ridgecrest area in Southern California in 2019.
Posted inResearch Spotlights

Fiber-Optic Cables Can Produce High-Resolution Underground Maps

by Jack Lee 15 February 202214 May 2024

Telecom fiber repurposed as distributed acoustic sensing arrays can image near-surface structure and potentially improve seismic hazard mapping in urban areas.

Photograph of scientists installing fiber-optic cables in a trench.
Posted inEditors' Vox

Using Sound and Vibration Signals to Understand the Subsurface

by Yingping Li, Martin Karrenbach and Jonathan B. Ajo-Franklin 6 January 202214 May 2024

A new book explores Distributed Acoustic Sensing, a technology with a range of applications across geophysics and related fields.

A snowcat plows its way through snow with a rocky ridge in the background.
Posted inScience Updates

Sensing Iceland’s Most Active Volcano with a “Buried Hair”

by Sara Klaasen, Sölvi Thrastarson, Andreas Fichtner, Yeşim Çubuk-Sabuncu and Kristín Jónsdóttir 4 January 202214 May 2024

Distributed acoustic sensing offered researchers a means to measure ground deformation from atop ice-clad Grímsvötn volcano with unprecedented spatial and temporal resolutions.

Plot showing complementary strengths and weaknesses of existing and emerging seismic instrumentation for earthquake response.
Posted inEditors' Highlights

Aftershocks and Fiber Optics

by Thorsten W. Becker 28 June 202114 May 2024

Internet cables can be transformed into a string of dense seismic sensors, and this approach has now been shown to be highly useful for quickly monitoring seismicity after major earthquakes.

Sunrise over snow.
Posted inNews

Laser Flashes Shed Light on a Changing Arctic

Katherine Kornei, Science Writer by Katherine Kornei 18 May 202114 May 2024

An ongoing project in northern Alaska is using pulses of laser light to monitor anthropogenic activity, ice quakes, and marine wildlife.

An empty Sand Hill Road winds through Silicon Valley, with Stanford University’s bell tower in the background
Posted inResearch Spotlights

Fibers Pick Up Silicon Valley Traffic Changes During Quarantine

Rachel Fritts, Science Writer by Rachel Fritts 1 October 202014 May 2024

Fiber-optic cables measured a 50% decline in Sand Hill Road traffic in March.

Rose Parade float featuring dinosaurs
Posted inNews

Everything’s Coming Up Roses for Pasadena Seismologists

Mary Caperton Morton, Science Writer by Mary Caperton Morton 4 June 202014 May 2024

Using fiber-optic cables, a new seismic network charts vibrations associated with the Rose Parade’s massive floats and marching bands.

Installation of a fiber-optic cable for distributed acoustic sensing
Posted inScience Updates

Fiber-Optic Networks Find a New Use as Seismic Sensor Arrays

by H. Wang, Xavier Comas and S. Tyler 5 April 201916 February 2022

Distributed Acoustic Sensing: Principles and Case Studies; Washington, D.C., 9 December 2018

A bundle of fiber-optic cables
Posted inNews

Unused Fiber-Optic Cables Repurposed as Seismic Sensors

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 8 March 201914 May 2024

So-called dark fiber can serve as regional seismic activity monitors and also detect earthquakes thousands of kilometers away, according to new research.

Posted inEditors' Highlights

Fiber Optics Opens Window into Subsurface Deformation

by M. Bayani Cardenas 18 December 201816 February 2022

The distributed deformation of buried materials is difficult to map, but a new approach is able to resolve vertical deformation over the length of a fiber optic cable.

Posts pagination

Newer posts 1 2 3 Older posts
A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

What’s Changed—and What Hasn’t—Since the EPA’s Endangerment Finding

24 June 202524 June 2025
Editors' Highlights

Coupled Isotopes Reveal Sedimentary Sources of Rare Metal Granites

17 June 202516 June 2025
Editors' Vox

Inside Volcanic Clouds: Where Tephra Goes and Why It Matters

16 June 202512 June 2025
Eos logo at left; AGU logo at right

About Eos
ENGAGE
Awards
Contact

Advertise
Submit
Career Center
Sitemap

© 2025 American Geophysical Union. All rights reserved Powered by Newspack