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Hazards & Disasters

Two maps of the study region displaying earthquake depth as colored dots.
Posted inEditors' Highlights

Aftershocks Reveal Coseismic Rupture of Megathrust Earthquakes

by Agnes Helmstetter 28 July 202221 September 2022

More accurate aftershock zones reveal that the rupture areas of megathrust Aleutian–Alaska earthquakes are larger than we thought and partly overlap, in contradiction with the seismic gap hypothesis.

Diagrams showing the model fields used in the study.
Posted inEditors' Highlights

Landfalling Hurricanes Intensify Due to Coastal Downwelling

by Suzana Camargo 26 July 202221 September 2022

Hurricane winds can lead to coast downwelling, which brings warmer surface water near the coast and can contribute to the intensification of the landfalling hurricane.

Senior citizens in a rural setting take part in a mapping workshop in Uganda’s Kigezi Highlands.
Posted inNews

Community Science Project Helps Track Geohazard Risks in Uganda

by James Dacey 22 July 202227 March 2023

A community project in the Kigezi Highlands is helping to identify landslide and flooding hot spots and how the hazards are evolving.

Diagrams and graphs showing the growth of submarine slides.
Posted inEditors' Highlights

Growth That Economists Would Envy

by Michel Louge 20 July 202221 July 2022

A new study reveals how small cracks turn into gigantic submarine slides.

The Fagradalsfjall volcano erupts in Iceland on 20 March 2021.
Posted inNews

Mapping a Volcanic Eruption in the Backyard of Iceland’s Capital

by Stacy Kish 19 July 202219 July 2022

Researchers used satellites and aerial data to create regularly updated maps of the Fagradalsfjall eruption for both the public and disaster response agencies.

Four-paneled figure, with the upper right panel showing Today Show coverage, with both the initial question directed to the @USGSVolcanoes Twitter account from user @JayFurr, “Is it safe to roast marshmallows over volcanic vents?” and the response, “Erm…we’re going to have to say no.” The upper left panel shows CNN coverage with an image of the eruption and the headline “USGS: ‘Please don’t roast marshmallows over lava.’” The lower left panel shows MSNCB coverage, which shows only the initial tweet. The lower right panel shows MSNBC’s parody of the NBC public service announcement graphic, in which, against the background of space filled with stars, the purple words “The S’more You Know” are underlined by a yellow shooting star.
Posted inNews

Roosters, S’mores, and #EmergencyCute: A Humor-in-Crisis How-To

by Alka Tripathy-Lang 15 July 202227 March 2023

When natural hazards strike communities, we may not think science agencies should respond with humor. Researchers suggest that sometimes, however, humor can connect communities and bring smiles.

Un techo colapsado lleno de granizo en un supermercado de la Ciudad de México.
Posted inNews

El granizo que colapsó a la Ciudad de México

by Humberto Basilio 12 July 202227 March 2023

Cuando una granizada intensa golpeó la capital de México la semana pasada, los ciudadanos se empezaron a preguntar si el cambio climático podría ser la causa. Pero, ¿es esa la pregunta que nos debemos hacer?

Photograph of a volcano erupting.
Posted inEditors' Vox

Dynamics of Volcanic Processes

by Olivier Roche, Yosuke Aoki, Nikolai Bagdassarov, Michael Heap, Sigrun Hreinsdottir, Qinghua Huang, Daniel Pastor-Galan, Michael Poland, Maria Sachpazi, Fang-Zhen Teng, Gregory Waite, Marie Edmonds, Paul Asimow, Minghua Zhang and Graziella Caprarelli 6 July 202220 September 2022

A new cross-journal special collection invites contributions on modern approaches used to investigate dynamics of volcanic processes.

Four satellite images showing pyroclastic material infill between 2014 and 2019.
Posted inEditors' Highlights

Volcanic Creation and Destruction of Temporary Tephra Storage

by Agnes Kontny 1 July 202220 September 2022

Pyroclastic density currents (PDCs) are a major threat during an explosive volcanic eruption. A new study shows that loose tephra accumulations on volcanic slopes tend to re-mobilize rapidly.

Esquema algoritmo de aprendizaje para estimar las magnitudes de terremotos sobre la base de señales de elastogravidad rápida.
Posted inNews

Monitoreando terremotos a la velocidad de la luz

by Mohammed El-Said 30 June 202230 June 2022

Nueva investigación utiliza la gravedad y un modelo de aprendizaje automático para estimar instantáneamente la magnitud y ubicación de grandes terremotos.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
Geophysical Research Letters
“Neural Networks Map the Ebb and Flow of Tiny Ponds”
By Sarah Derouin

EDITORS' HIGHLIGHTS
Community Science
“Collaboration Helps Overcome Challenges in Air Quality Monitoring”
By Muki Haklay

EDITORS' VOX
Reviews of Geophysics
“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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