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Hazards & Disasters

A tree-lined valley in Switzerland with a deep channel cutting through the beige ground.
Posted inResearch Spotlights

Scientists Just Measured a Debris Flow in Unprecedented Detail

Sarah Derouin, Science Writer by Sarah Derouin 13 March 202313 March 2023

This research team used a laser sensor originally designed for autonomous vehicles to track debris flow surges.

A volcano with two snow-dusted peaks in an arid landscape with a cloudless blue sky.
Posted inResearch Spotlights

Mapping the Fizzy Brines and Fluid-Filled Fractures Below a Volcano

Sarah Stanley, Science Writer by Sarah Stanley 9 March 202320 March 2023

Seismic tools reveal where hydrothermal fluids lie beneath the Uturuncu volcano in Bolivia and hint at their composition.

Diagram showing various glacial lake outburst flood process chains
Posted inEditors' Highlights

Artificial Lake-Level Lowering Alleviates Floods in the Himalayas

by Dongfeng Li 8 March 20236 March 2023

A new model combining future permafrost degradation and related avalanches demonstrates that artificial lake-lowering could significantly reduce the risk of glacial lake outburst floods.

Photo of a volcano erupting
Posted inEditors' Vox

Quantification of Subaerial Volcanism and its Products

by Federico Galetto 6 March 20233 March 2023

Researchers estimate the mass of volcanic products that erupted above sea level from 1980 to 2019 by volcanoes worldwide and the average eruptive rates of each magmatic province.

Map of study area and graphs showing magnetic signal evolution.
Posted inEditors' Highlights

Rapid Evolution of Volcanic Systems Reflected in Magnetics

by Agnes Kontny 28 February 202312 December 2025

Spatiotemporal magnetic monitoring along with InSAR models is a powerful tool to image magmatic, hydrothermal, and mechanical changes within the volcanic edifice of the Piton de la Fournaise.

Diagram of a fault zone
Posted inEditors' Highlights

Upscaling Slip and Friction From Grains to the Fault Core

by François Renard 10 February 20238 February 2023

Numerical simulations demonstrate how averaging deformations at the grain scale may unravel the macroscopic friction and unstable slip behavior of a fault core.

An aerial view of a beige and green landscape on the San Andreas fault
Posted inResearch Spotlights

A New Measure of Roughness Could Advance Earthquake Geophysics

Sarah Stanley, Science Writer by Sarah Stanley 8 February 20238 February 2023

Scientists recently developed an alternative way to measure a rock’s roughness. It might help them understand the physics of faults.

Graphs showing examples of predicted extreme streamflow in catchments.
Posted inEditors' Highlights

Predicting Flood Conditions in the Next Few Years

by Valeriy Ivanov 7 February 20237 June 2023

Multiyear flood predictions are possible for watersheds in which the magnitude and frequency of flooding can be related to an atmospheric pressure see-saw in the North Atlantic region.

Field photos of burned forest and graphs showing reflectance properties.
Posted inEditors' Highlights

Summer Fire Means Winter Melt

by Valeriy Ivanov 2 February 20232 February 2023

Changing wildfire activity in California may impact seasonal hydrology by causing intense snowmelt during winter in areas where fires extend into higher elevation zones.

Black freighter at sea with gray, cloudy skies in the background
Posted inENGAGE, News

Seaports Could Lose $67 Billion Yearly from Natural Disasters

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 2 February 202322 March 2023

Small islands and low-income nations face the largest relative monetary losses to their ports and maritime trade.

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

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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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