A fiber-optic cable below Türkiye’s earthquake-prone metropolis is offering new details about how seismic waves will rattle the city—and demonstrating the potential of a bigger monitoring effort.
distributed acoustic sensing (DAS)
Fiber-Optic Networks Could Reveal the Moon’s Inner Structure
Distributed acoustic sensing offers a cost-effective alternative to traditional seismic arrays, and building such a network on the Moon might be possible.
Thunderquakes Map the Subsurface
Researchers have figured out how rumbling thunder turns to seismic waves and how this shaking could be used to reveal subsurface geology.
Internet Cable Reveals the Source of Underwater Vibrations
A novel use of an existing fiber-optic cable off the coast of Spain has clued scientists in to how seismic noise is generated in the ocean.
Distributed Sensing and Machine Learning Hone Seismic Listening
Fiber-optic cables can provide a wealth of detailed data on subsurface vibrations from a wide range of sources. Machine learning offers a means to make sense of it all.
Fiber-Optic Cables Can Produce High-Resolution Underground Maps
Telecom fiber repurposed as distributed acoustic sensing arrays can image near-surface structure and potentially improve seismic hazard mapping in urban areas.
Using Sound and Vibration Signals to Understand the Subsurface
A new book explores Distributed Acoustic Sensing, a technology with a range of applications across geophysics and related fields.
Sensing Iceland’s Most Active Volcano with a “Buried Hair”
Distributed acoustic sensing offered researchers a means to measure ground deformation from atop ice-clad Grímsvötn volcano with unprecedented spatial and temporal resolutions.
Aftershocks and Fiber Optics
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.
Laser Flashes Shed Light on a Changing Arctic
An ongoing project in northern Alaska is using pulses of laser light to monitor anthropogenic activity, ice quakes, and marine wildlife.