Borehole distributed acoustic sensing (DAS) offers a more precise way to measure small earthquakes, if appropriate care is taken.
fiber optics
Posted inNews
A Fiber-Optic Cable Eavesdrops on a Calving Glacier
A glass thread strung along the bottom of a fjord captured the entire process of calving, from the cracking of ice to the breakup of bergs.
Posted inResearch Spotlights
A Transatlantic Communications Cable Does Double Duty
A new device enables existing submarine cable networks to measure deep-sea movements. It could ultimately help improve tsunami warnings and climate monitoring.
Posted inEditors' Highlights
Observing Magma-Induced Seismic Velocity Changes with Fiber-Optics
A new high-resolution method for tracking volcanic activity utilizes fiber-optic sensing to detect magma intrusion by measuring seismic velocity changes.
Posted inEditors' Vox
Listening to Earth’s Subsurface with Distributed Acoustic Sensing
A new book examines how fiber-optic cables installed in boreholes can monitor seismic activity, fluid flow, subsurface temperatures, and more.
Posted inENGAGE, News
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.
Posted inNews
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.
Posted inResearch Spotlights
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.
