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volcanoes

A mass of steaming, orange-glowing lava consumes a street sign as it flows over a roadway.
Posted inResearch Spotlights

A Better Operational Lava Flow Model

by Morgan Rehnberg 26 October 202226 October 2022

By segmenting the vertical structure of a lava flow, the Lava2d model provides more realism to operational lava forecasts.

A lightning bolt appears amid clouds of ash and steam that are billowing from a volcano high into the atmosphere over the ocean.
Posted inResearch Spotlights

Tracking Water in the Tongan Volcano’s Massive Eruption Plume

Sarah Stanley, Science Writer by Sarah Stanley 24 October 202230 November 2022

The recent eruption of the Hunga Tonga–Hunga Ha‘apai volcano blasted sulfate aerosols and a record-breaking amount of water vapor into the stratosphere.

Research vessel overlooking a glacier
Posted inNews

Arctic Glaciers, a Peruvian Volcano, and a Russian Famine

by Santiago Flórez 11 October 202220 September 2023

A team studying Russian glaciers found evidence that a volcanic eruption in southern Peru changed the planet’s climate at the beginning of the 17th century.

The uninhabited island of Hunga Tonga–Hunga Haʻapai was destroyed by the massive volcanic eruption in January 2022.
Posted inNews

People Need to Think Bigger About Volcanic Catastrophes

by Katharine Gammon 22 September 202222 September 2022

New research outlines the risk of catastrophic eruptions and urges policymakers to support more widespread monitoring.

A snow-capped volcano appears against a bright blue sky and is reflected in lake water of the same bright blue. In the foreground are green shrubs and a boulder.
Posted inNews

Supervolcanoes Linger a While, Then Rush to Erupt

Damond Benningfield, Science Writer by Damond Benningfield 12 September 202212 September 2022

Geologists examined crystals in rock from four massive eruptions in the Chilean Andes.

Photograph of a Global Seismographic Network station with mountains in the background.
Posted inEditors' Vox

Global Seismic Networks: Recording the Heartbeat of the Earth

by Adam T. Ringler 9 September 20229 September 2022

Global broadband seismographic networks have provided the science community with 30 years of data which is being used to understand the Earth.

Photo of Cerro Aconcagua, the highest mountain in the Americas
Posted inEditors' Vox

Old Igneous Rocks Hold the Key to Crustal Thickness Evolution

by Peter Luffi and Mihai Ducea 7 September 202229 September 2022

The chemical composition of orogenic igneous rocks and their zircons is sensitive to crustal thickness and can be used to quantify the evolution of Moho depths beneath continents back in time.

A Velociraptor with white, black, and red feathers runs with its mouth open.
Posted inNews

Volcanic Winters Ushered in the Jurassic Reign of the Dinosaurs

Katherine Kornei, Science Writer by Katherine Kornei 31 August 202222 March 2023

Sediment cores from northwestern China reveal freezing conditions during the Late Triassic killed off many forms of life—but not dinosaurs.

Satellite image of ancient lava flows on Mars
Posted inNews

This One Simple Trick Helps Us Understand How Much Water Is in Martian Lavas

Erik Klemetti, Science Writer by Erik Klemetti 24 August 202216 September 2022

Understanding how much water is in Martian magma is vital for understanding whether the Red Planet had seas in its early history.

A diagram and a graph showing how ocean island eruptions are much more likely to exhibit SO2 degassing and deformation.
Posted inEditors' Highlights

Why Do Arc Volcanoes Deform Less Than Ocean Island Volcanoes?

by Paul Asimow 15 August 202215 November 2022

Volcanic ground deformation is not simply correlated with erupted volume. Researchers propose that high concentrations of magmatic volatiles make systems more compressible and suppress deformation.

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