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volcanoes

Geologic map from the study.
Posted inEditors' Highlights

Complex Plumbing Dynamics for Kīlauea Volcano  

by Thorsten W. Becker 19 November 202519 November 2025

A new analysis of subtle seismic velocity changes provides insights into the coupling of magma reservoirs of Hawaiian volcanoes.

Three images of the Jovian moon Io show different distributions of colors. The far left image has a spot of red and yellow at bottom left, and the other two images each have a spot of red and yellow in the top half.
Posted inResearch Spotlights

Webb Telescope Spies Io’s Volcanic Activity and Sulfurous Atmosphere

Sarah Stanley, Science Writer by Sarah Stanley 4 November 20254 November 2025

New James Webb Space Telescope images reveal cooling lava, volcanic sulfur monoxide gas, and sulfur gas emissions created by interactions between plasma and the moon’s atmosphere.

Mount Pinatubo, Philippines, erupts in 1991.
Posted inNews

Volcanic Eruptions in One Hemisphere Linked to Floods in the Opposite One

by Grace van Deelen 22 September 202522 September 2025

Asymmetric volcanic plumes may shift equatorial weather patterns and increase tropical stream flow, according to new simulations.

Satellite orbiting near a rocky asteroid surface.
Posted inEditors' Highlights

Are There Metal Volcanoes on Asteroids?

by Laura Schaefer 18 September 202516 September 2025

Upcoming NASA observations may reveal whether ferrovolcanism shaped 16 Psyche’s metallic surface and hidden interior.

Graphs and photos of an eruption
Posted inEditors' Highlights

Long-Term Strain Record of Mount Etna Captures 84 Fountaining Eruptions

by Gregory P. Waite 26 August 202526 August 2025

Scientists use over a decade of high-resolution data to demonstrate that strain signals provide a better match to eruptive style than seismic tremors.

A model shows yellow mantle plumes rising from big, red lower-mantle basal structures.
Posted inNews

Blame It on the BLOBs

by Bill Morris 15 August 202514 August 2025

For decades, scientists have suspected that large volcanic eruptions have their origins in two mysterious massive regions at the base of our planet’s mantle. Now, it’s been statistically proven.

A person wearing a gas mask and sunglasses stands in front of a lake with steam covering the left side.
Posted inFeatures

Jess Phoenix: Curiosity Unfettered

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 28 July 202528 July 2025

After leaving her Ph.D. program, this geologist leaned into saying yes when exciting new opportunities arose.

Map from the study.
Posted inEditors' Highlights

A Volcanic Boom Puts the Squeeze on Remote Confined Aquifers

by Douglas R. Schmitt 28 July 202523 July 2025

A new study shows that ground water levels responded to forcing by barometric pressure pulses from the 2022 Hunga Tonga-Hunga Ha’apai Volcanic Eruption.

A pool of brown mud with a large bubble near the center of the image
Posted inNews

Mapping Mud Volcanoes in Shallow Seas

by Meghie Rodrigues 10 July 202510 July 2025

A team of scientists put together a global database of submarine mud volcanoes. Orders of magnitude more are still bubbling, undiscovered, in the deep ocean.

Photo of a large plume of smoke emitting from a volcano.
Posted inEditors' Vox

Inside Volcanic Clouds: Where Tephra Goes and Why It Matters

by Federica Pardini 16 June 202512 June 2025

Monitoring and forecasting the movement of volcanic clouds is key to mitigating the impacts on communities, infrastructure, and air traffic.

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A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

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Research Spotlights

Watershed Sustainability Project Centers Place-Based Research

4 December 20254 December 2025
Editors' Highlights

Changes in Slab Dip Cause Rapid Changes in Plate Motion

4 December 20252 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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