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Hazards & Disasters

Bretwood “Hig” Higman stands on a landslide hummock on the shore of Taan Fjord. In 2015, the landslide visible in the background triggered a 193-meter (633-foot) tsunami in the area.
Posted inFeatures

Hig Higman: Trekking Across the Last Frontier on the Hunt for Geohazards

by J. Besl 25 July 202325 July 2023

Higman specializes in human-powered research expeditions in Alaska’s epic landscape.

A red tide washes over a Florida beach.
Posted inFeatures

Florecimientos de algas nocivas: nada bueno, solo lo malo y lo feo

by James E. Silliman 20 July 202320 July 2023

Diversos factores humanos y naturales están generando florecimientos de algas nocivas cada vez más frecuentes y prolongados. Estudios recientes han comenzado a revelar la magnitud del problema y nos informan sobre soluciones potenciales.

Nubes borrosas oscurecen gran parte de la vista de un valle desarrollado.
Posted inNews

La ciudad colombiana que está abriendo el camino para las “Alertas Tempranas para Todos”

Jane Palmer, Science Writer by Jane Palmer 18 July 202318 July 2023

Medellín alerta a sus habitantes sobre inundaciones, deslizamientos, incendios, rayos y mala calidad del aire.

Photo of a flooded neighborhood.
Posted inEditors' Vox

Unlocking the Secrets of Floods: Breakthroughs in Riverine and Coastal Modeling

by Keighobad Jafarzadegan, Hamed Moftakhari and Hamid Moradkhani 5 July 20235 July 2023

To enhance flood modeling, it is imperative to gain a comprehensive understanding of the causative mechanisms and cutting-edge models and tools, while also acknowledging their uncertainties. 

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.

Graphs from the paper
Posted inEditors' Highlights

Modeling Whole Atmosphere Responses to the Hunga-Tonga Eruption

by Yuichi Otsuka 13 June 20238 June 2023

A high-resolution whole atmosphere simulation captures the strong, global responses up to the thermosphere and ionosphere following the Hunga-Tonga volcano eruption.

Photo showing technologies for monitoring volcanic gas emissions.
Posted inEditors' Highlights

Send in the Drones: Safely Monitoring Volcanic Gas Emissions

by Paul Asimow 8 June 20238 June 2023

New drone technology was combined with satellite and ground-based data to improve volcanic gas flux monitoring at the remote Bagana Volcano in Papua New Guinea.

A dry creek bed in Hartz Mountains, Tasmania, Australia
Posted inNews

Flash Droughts Are Getting Flashier

by Roberto González 7 June 20237 June 2023

Warming temperatures and less rain are causing flash droughts to develop more quickly and strike more often.

Mount Vesuvius looms over the Gulf of Naples.
Posted inNews

Ancient Victims of Vesuvius May Have Baked in a Cloud of Ash

by Carolyn Wilke 7 June 20237 June 2023

Debate still swirls around what killed ancient Romans during the 79 CE eruption. A study of wood charred by the event suggests a brief, but searing, flow of volcanic gas and debris.

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.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

How Much Will Western Wildfires Worsen Under Warming?

15 May 202615 May 2026
Editors' Highlights

A Digital Twin for Arctic Permafrost Beneath Roads

8 May 202612 May 2026
Editors' Vox

The Impact of Advocacy: American Geophysical Union’s Days of Action

14 May 202613 May 2026
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