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volcanoes

In the background, snow-capped Mount Hood rises above a mountain range. In the foreground, the skyscrapers of Portland, Ore., dominate the landscape.
Posted inResearch Spotlights

Some High-Threat Volcanoes Are Severely Understudied

by Saima May Sidik 29 November 202329 November 2023

Scientists have little understanding of where magma is stored along the Cascade Volcanic Arc or how its volcanoes could affect population centers.

A map of what Pangea Ultima, which should form in about 250 million years, will look like
Posted inNews

Future Supercontinent Will Be Inhospitable for Mammals

by Rebecca Owen 8 November 20238 November 2023

Pangea returns in 250 million years, and it’s not looking good for us.

Map of study area with symbols.
Posted inEditors' Highlights

Machine Learning Identifies Source Volcanoes of Ash Deposits

by Paul Asimow 8 November 20236 November 2023

Tracing ash layers from explosive eruptions back to their source volcanoes is needed to evaluate hazards to population and aviation, a problem addressed by a new machine learning classification method.

A row of black volcanic scones in Halema’uma’u in Hawaii eject lava into the air. The background is obscured by smoke from the lava.
Posted inResearch Spotlights

Humans Have Boosted Atmospheric Mercury Concentrations Sevenfold

by Rebecca Dzombak 3 November 20233 November 2023

A new baseline of volcanic contributions to the global mercury cycle reveals how drastically human activities have increased the element’s concentration in the atmosphere.

Una página de un texto antiguo con un dibujo de círculos y otras formas representando un eclipse.
Posted inNews

Registros de eclipses fechan erupciones volcánicas de los siglos XII y XIII

by Kate Evans 30 October 202330 October 2023

Registros antiguos de lunas oscuras y lunas de sangre ayudan a los científicos a vislumbrar erupciones pasadas y sus efectos en el clima global.

A seismic profile line through Kolumbo volcano, showing the volcanic cone, the landslide deposit and the shear plane. Image from Karstens et al. (2023).
Posted inThe Landslide Blog

A landslide triggered the 1650 tsunamigenic eruption of Kolumbo in the Aegean Sea

by Dave Petley 27 October 202327 October 2023

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. In 1650, a destructive tsunami occurred in the Aegean Sea, which is an embayment of the Mediterranean sea, located between the modern Greece to the west and Turkey to the east. There […]

Diagram from the paper.
Posted inEditors' Highlights

Rift-to-Ridge: Mid-Atlantic Ridge Segments Imprinted During Rifting

by Emilie Hooft 19 October 202317 October 2023

A new seismic study shows that magmatism along the eastern North American rift margin was segmented, and that rift discontinuities influence formation of fracture zones along the Mid-Atlantic Ridge.

Representación artística de un criovolcán en erupción en Tritón, luna de Neptuno
Posted inNews

La canción de hielo y fuego del criovulcanismo

Erik Klemetti, Science Writer by Erik Klemetti 16 October 202316 October 2023

Las lunas oceánicas del sistema solar exterior nos dan pistas sobre volcanes de hielo, fuentes hidrotermales, y la tentadora posibilidad de habitabilidad.

An artist’s depiction of a cryovolcano is erupting on Neptune’s moon Triton.
Posted inFeatures

Cryovolcanism’s Song of Ice and Fire

Erik Klemetti, Science Writer by Erik Klemetti 25 September 202316 October 2023

Ocean moons of the outer solar system hint at ice volcanoes, hydrothermal vents, and the tantalizing chance of habitability.

Illustration of a water-covered planet viewed from its surface: In the foreground is rippling water reflecting pink, yellow, and white light from a glowing phenomenon in the distance, in the middle of the illustration. Surrounding the bright phenomenon are bright stars and translucent clouds visible in front of a dark background.
Posted inAGU News

Oceans of Opportunity

by Caryl-Sue Micalizio 25 September 202329 September 2023

Our solar system’s ocean worlds offer scientists intriguing instances of exotic phenomena and fresh prospects in the elusive search for planetary habitability.

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Features from AGU Publications

Research Spotlights

Simplicity May Be the Key to Understanding Soil Moisture

23 May 202523 May 2025
Editors' Highlights

Creep Cavitation May Lead to Earthquake Nucleation

22 May 202521 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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