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Volcanology

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Superheating in Mafic Magma Can Shift Eruptions From Flows to Fountains

New lab experiments and ascent models show heat-driven delays in crystal formation keep magma fluid and could change how hazards are forecast.

Sahara Meteorite Points to Moon‑Size Lost Protoplanet

Kīlauea Erupts in Episode 48, Sending 650‑Foot Lava Fountains and Ash Downwind

Mount St. Helens, 46 Years Later, Is Quiet Under Watch

Tonga Eruption’s Plume Rapidly Destroyed Methane, Satellite Study Finds

Kīlauea’s Nine-Hour Summit Episode Ends With Alert Levels Lowered

Mayon Volcano Showers Ash as Alert Level 3 Prompts Evacuations and Flight Warnings

Methana Study Finds Long‑Quiet Volcanoes May Not Be Extinct

Study Finds Long-Quiet Greek Volcano Has Been Building Magma Underground

Mars Orbiter Finds Dark Volcanic Ash Spreading Across Utopia Planitia

Vast Magma Reservoir Mapped Beneath Tuscany, On the Scale of Supervolcanoes

Sakurajima Eruption Grounds Flights as Japan Keeps Level 3 Alert

Kīlauea Erupts for 44th Time With Towering Lava Fountains, Prompting Closures

Seismic Imaging Finds Kikai Caldera’s Magma Reservoir Is Refilling

Tenerife Logs 84 Small Quakes Near Teide as City Crafts Eruption Contingency Plan

Lava From Piton de la Fournaise Cuts Réunion’s RN2 for First Time Since 2007

Bromacker Fossil Site Redated to 294.1 Million Years Old

Kīlauea’s Latest Summit Eruption Sends 30,000-Foot Ash Plume, Triggers Park and Highway Closures

Sabancaya Volcano Activity Intensifies as New Blast Sends Ash Over Caylloma

Mud Volcano Near San Juan de Urabá Erupts in Fiery Blast, Forcing Evacuations and Damaging Infrastructure