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geophysics

Gradual fault creep can be seen deforming the walls of this stadium at the University of California, Berkeley.
Posted inResearch Spotlights

Earthquake Modelers Unite to Compare and Improve Code

Sarah Stanley, Science Writer by Sarah Stanley 2 May 202224 June 2022

International community–driven efforts lend confidence to fault-slip simulations while highlighting key discrepancies.

A volcanic eruption spews molten rock into the sky.
Posted inNews

Magma Lingers at Different Depths on the Basis of Its Water Content

Katherine Kornei, Science Writer by Katherine Kornei 4 April 202225 April 2022

The discovery, gleaned from observations of volcanoes on four continents, could help constrain models of volcanic eruptions.

Camino dañado por un terremoto en Calexico, California, 2010. El camino muestra grietas en el pavimento. Al fondo se observa un edificio de una planta cercado y el cielo azul.
Posted inNews

Buscando terremotos en la ionosfera

by Nathaniel Scharping 28 March 202228 March 2022

Los terremotos pueden liberar ráfagas de energía eléctrica que se pueden sentir en la ionosfera, a kilómetros por encima de la Tierra. Sin embargo, la teoría sigue siendo controvertida.

An earthquake damaged a paved road in Calexico, Calif., in 2010.
Posted inNews

Searching for Earthquakes in the Ionosphere

by Nathaniel Scharping 25 February 202212 April 2022

Earthquakes may release bursts of electrical energy that can be felt in the ionosphere, kilometers above Earth. The theory remains controversial, though.

Photograph and muographic image of Satsuma-Iwo-jima volcanic island, Japan
Posted inEditors' Vox

High-Definition Imaging of the Subsurface with Cosmic Ray Muons

by László Oláh, Hiroyuki K. M. Tanaka and Dezső Varga 14 February 20223 January 2023

A new book describes muography, an imaging technique that can be used to visualize the internal density composition of geological structures.

Sand dunes flank a freshwater lake.
Posted inNews

Estimating Lake Evaporation Just Got Easier

by Issa Sikiti da Silva 9 February 202211 February 2022

A new method standardizes freshwater lake measurements and shows they are losing a fifth of their inflow to evaporation.

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.

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.

Illustration of an atom being held in place by six lasers.
Posted inFeatures

Lasers and Ultracold Atoms for a Changing Earth

by Michel Van Camp, F. Pereira dos Santos, Michael Murböck, Gérard Petit and Jürgen Müller 20 December 20219 March 2023

Applying new technology rooted in quantum mechanics and relativity to terrestrial and space geodesy will sharpen our understanding of how the planet responds to natural and human-induced changes.

A dam impounds a large reservoir (background) as seen from a stone fort (foreground).
Posted inNews

A Monsoon-Filled Reservoir Might Have Nudged a Fault to Fail

by Maria Rose 16 December 202116 December 2021

New research examines whether a sudden increase in water loading in Pakistan’s Mangla Dam might have been connected to the 2019 New Mirpur earthquake.

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Features from AGU Publications

Research Spotlights

More Bubbles Means More Variation in Ocean Carbon Storage

8 July 20258 July 2025
Editors' Highlights

The Power of Naming Space Weather Events

10 July 20258 July 2025
Editors' Vox

Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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