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seismology

A pile of fiber-optic cable sits on a street in New York City with workers in the background.
Posted inFeatures

Distributed Sensing and Machine Learning Hone Seismic Listening

by Whitney Trainor-Guitton, Eileen R. Martin, Verónica Rodríguez Tribaldos, Nicole Taverna and Vincent Dumont 4 March 20224 March 2022

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.

A gravel pit near Antofagasta, Chile, with an overlay of waveforms from the Iquique aftershock sequence
Posted inResearch Spotlights

Comparing Machine Learning Models for Earthquake Detection

by Kate Wheeling 24 February 202224 February 2022

A new study evaluated the performance of emerging deep learning models for earthquake detection, phase identification, and phase picking.

Artist’s rendering of a planet covered in magma
Posted inNews

Layered Zone Beneath Coral Sea Suggests Ancient Magma Ocean

by Alka Tripathy-Lang 4 February 202225 May 2022

Scientists studying South Pacific earthquakes suggest that an ultralow-velocity zone at the core-mantle boundary may be a remnant of a molten early Earth.

Three-dimensional seismic observation with the CO2 reservoir labeled in green
Posted inResearch Spotlights

Neural Networks Can Identify Carbon Dioxide in Seismic Observations

by Morgan Rehnberg 28 January 20222 March 2022

By establishing a machine-driven approach to interpreting seismic observations of carbon dioxide injection, researchers hope to improve tracking of carbon capture and sequestration projects.

Posted inResearch Spotlights

地震资料中的断层和褶皱信号

by Kate Wheeling 20 January 202220 January 2022

种新的数值模型模拟了整个地震周期内的地壳褶皱。

Figure 2 from Wang and Tkalčić [2021]
Posted inEditors' Highlights

Observation of Shear Wave Anisotropy in the Earth’s Inner Core

by Daoyuan Sun 5 January 202220 April 2022

Coda-correlation wavefields reveal direction-dependent inner-core shear-wave speed, ~5 s faster in directions oblique to the Earth’s rotation axis than directions parallel to the equatorial plane.

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 20221 June 2022

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

A view of the San Andreas Fault
Posted inResearch Spotlights

How Fault Surface Features Can Tell Us About Future Earthquakes

by Elizabeth Thompson 21 December 202121 December 2021

A new study suggests ways to quantify fault maturity, a property that affects earthquake characteristics.

The light green planet Uranus sits on a black background. One bright white and many faint white concentric rings encircle the planet face on, and many small white specks, its moons, are scattered across the image.
Posted inNews

Can Uranus’s Rings Reveal the Planet’s Deepest Secrets?

by Kimberly Cartier 17 December 202117 December 2021

Planetary rings can act as seismometers that respond to changes deep within a planet.

High school running track in Taiwan crossed by the Chelungpu fault
Posted inResearch Spotlights

Faulting and Folding Signals in Seismic Data

by Kate Wheeling 6 December 202126 January 2022

A novel numerical model simulates folding in Earth’s crust throughout the earthquake cycle.

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