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volcanoes

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 202324 February 2023

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.

Ropy black basalt solidifies, with orange-red lava visible, like embers in a fire.
Posted inNews

Crystals Track Magma Movement Beneath Iceland

by Alka Tripathy-Lang 28 February 202319 July 2023

Crystals from Fagradalsfjall’s eruption mark how mantle magma might have been moving years before geophysical indicators alerted scientists to unrest.

Photograph of a rocky hillslope with two people sitting at the top, in the distance.
Posted inNews

UV Radiation Contributed to Earth’s Biggest Mass Extinction

Rachel Fritts, Science Writer by Rachel Fritts 10 February 202327 February 2023

To find the first direct evidence of heightened UV radiation during the end-Permian mass extinction, researchers turned to chemical evidence preserved in pollen grains.

Ash cloud over top Mount Sinabung
Posted inNews

Centuries-Old Archive Reveals Far-Flung Impacts of Major Eruptions

by Shannon Banks 3 February 20233 February 2023

Weather records preserved by staff and students at Williams College reveal cool spells in New England after volcanic blasts in Indonesia and South Asia.

View of steep hills with exposures of dark rock as well as patches of green vegetation
Posted inFeatures

Baked Contacts Focus a Lens on Ancient Lava Flows

by Anthony Pivarunas, Margaret Avery, Joseph Biasi and Leif Karlstrom 1 February 202325 May 2023

Two studies, conducted 40 years apart, show how combining field observations and thermal modeling can reconstruct the history of massive lava flows and how they altered the surrounding landscape.

Close-up of the palm leaves of Babad Lombok held together by a string threaded through a hole in each page. Each side of the palm leaves shows inscriptions in Old Javanese.
Posted inNews

Stories Scribed on Palm Leaves Help Scientists Understand Ancient Eruption

by Alka Tripathy-Lang 19 December 202219 December 2022

Deposits from the 1257 Samalas eruption may contain artifacts of an ancient kingdom, according to scientists who link volcanology studies with histories written onto palm leaves.

Satellite image of Earth showing the atmospheric plume blanketing the Pacific after the underwater eruption of Hunga Tonga–Hunga Ha‘apai
Posted inNews

Social Media Posts Reveal Human Responses to Deadly Tongan Eruption

by Erin Martin-Jones 14 December 202214 December 2022

Quantifying human responses to natural disasters could improve preparation for future threats, scientists say.

Un rayo aparece en medio de nubes de cenizas y vapor que están saliendo de volcán a la atmósfera sobre el océano.
Posted inResearch Spotlights

Monitoreando el agua en la columna eruptiva masiva del volcán de Tonga

Sarah Stanley, Science Writer by Sarah Stanley 15 November 202230 November 2022

La reciente erupción del volcán Hunga Tonga-Hunga Ha’apai arrojó aerosoles de sulfatos y una cantidad nunca antes vista de vapor de agua a la estratosfera.

diagram of a subduction zone
Posted inEditors' Highlights

Tracing Oxidizing Slab Fluids in Cold Volcanic Arcs

by Susanne Straub 28 October 202215 November 2022

Elevated copper isotope ratios in arc magmas from fluid-rich cold subduction zones support the role of oxidizing fluids from the subducted lithospheric serpentinite in the oxidization of arc magmas.

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