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seismology

Photo taken from a helicopter of a broken road in a desert landscape
Posted inNews

Global Earthquake Analysis Seeks Elusive Foreshock Signal

by Nathaniel Scharping 15 August 202315 August 2023

Spotting foreshocks for what they are could help seismologists forecast large earthquakes.

Una imagen de satélite de una masa continental con parches cafés y verdes. Al centro hay una nube de humo con una línea naranja brillante.
Posted inNews

La tercera es la vencida para el Fagradalsfjall de Islandia

Katherine Kornei, Science Writer by Katherine Kornei 28 July 20234 August 2023

La región volcánica que hizo erupción en 2021 y 2022 después de más de 7 siglos de estar dormida, lo está haciendo de nuevo.

Illustration of the Earth's internal structure.
Posted inEditors' Vox

Digging Deep into Interactions Between the Core and Mantle

by Takashi Nakagawa, Taku Tsuchiya, Madhusoodhan Satish-Kumar and George Helffrich 24 July 20234 August 2023

A new book presents major advances in our understanding of core-mantle interaction and co-evolution, and showcases technological developments improving our insights into deep Earth processes.

A satellite image of a light brown landmass with patches of green. In the center is a cloud of smoke with a bright orange streak.
Posted inNews

Third Time’s the Charm for Iceland’s Fagradalsfjall

Katherine Kornei, Science Writer by Katherine Kornei 19 July 202331 July 2023

The volcanic region, which erupted in both 2021 and 2022 after more than 7 centuries of dormancy, is at it again.

Diagram from the paper.
Posted inEditors' Highlights

A New Workflow to Image the 3D Structure of Active Faults

by Patricia Martínez-Garzón 22 June 202322 June 2023

A new approach to illuminate 3D fault structures using earthquake hypocenters may improve our understanding of earthquake propagation and arrest across step overs.

Three-dimensional wireframe representation of Earth with a red spotted sphere in the center. The continents are shown in turquoise, and yellow lines radiate from a point on the bottom left continent.
Posted inNews

Mounds of Ancient Ocean Floor May Be Hiding Deep in Earth

Tim Hornyak, Science Writer by Tim Hornyak 13 June 20234 August 2023

A mysterious seismic feature at the bottom of Earth’s mantle is more widespread than previously thought.

Drawing of a magma reservoir and conduits below Kīlauea volcano
Posted inScience Updates

Earth Is Noisy. Why Should Its Data Be Silent?

by Leif Karlstrom, Ben Holtzman, Anna Barth, Josh Crozier and Arthur Paté 9 June 20236 June 2024

Combining visual and sonic representations of data can make science more accessible and help reveal subtle details. The recent decade-long eruption of Hawaii’s Kīlauea Volcano offers a prime example.

Diagram from the paper.
Posted inEditors' Highlights

Are Low-Frequency Earthquakes Just Slow Slip?

by Marcos Moreno 5 June 202331 May 2023

Tests of seismic attenuation show fluid saturation and high pressure near a seismic source reduce high-frequency content, challenging the idea of slow slip as the cause of low-frequency earthquakes.

Diagram and graphs from the paper.
Posted inEditors' Highlights

Zooming in on the Nucleus of Earthquake Fault Slips

by Hiroki Sone 25 April 202325 April 2023

Controlled arrest and re-nucleation of laboratory earthquakes reveals nucleation processes unapproachable by traditional linear elastic fracture mechanics.

Aerial view of a large part of a city showing numerous buildings collapsed into rubble piles amid many other buildings that are still standing.
Posted inFeatures

A Common Language for Reporting Earthquake Intensities

by David J. Wald, Sabine Loos, Robin Spence, Tatiana Goded and Ayse Hortacsu 21 April 202324 August 2023

Scientists are working together to establish a standardized international scale for measuring and reporting the intensities and impacts of earthquake shaking.

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Taking Carbon Science Out of Orbit

12 November 202512 November 2025
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Announcing New AGU Journal Editors-in-Chief Starting in 2026

12 November 202513 November 2025
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