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volcanoes

Satellite image of the island of Mayotte and its surrounding fringing reef
Posted inNews

New Volcano, Old Caldera

by Alka Tripathy-Lang 15 December 20206 September 2022

Researchers suggest a magma chamber sits within an old submarine caldera structure that extends into the mantle. Nearby, a new underwater volcano emerged with a flurry of seismicity.

Tourists take photos of black clouds during the eruption at Whakaari/White Island in 2019.
Posted inNews

Can Volcano Forecasting Make Visiting Whakaari Safe Again?

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 10 December 202028 October 2021

Last year’s explosive eruption at the New Zealand volcano tragically took tourists by surprise.

Schematic diagram of the experimental apparatus
Posted inEditors' Highlights

The Importance of Wind for the Fate of Volcanic Eruption Columns

by M. Pistolesi 13 November 20202 May 2022

A theoretical model coupled to lab experiments on turbulent jets with reversing buoyancy sheds new light on the role of wind in controlling the dynamics of volcanic eruptive columns.

A 3D computer illustration of Hesperosuchus, an extinct genus of crocodylomorph reptiles
Posted inNews

A Little-Known Mass Extinction and the “Dawn of the Modern World”

by S. Norris 9 November 202027 October 2022

Volcanic eruptions in what is now western Canada may have triggered a million years of rain and a mass extinction that launched the reign of the dinosaurs.

Sketches of river flow-induced seismicity (left) and eruption tremor (right) demonstrating their similarities
Posted inEditors' Highlights

Eruption Seismic Tremor Modeled as a Fluvial Process

by Gregory P. Waite 14 October 20202 May 2022

Impact and turbulence models for river tremor are adapted and combined into a model that predicts the amplitude and frequency content of volcanic eruption tremor.

Two plots showing the spatial distribution of radon activities at ground level (left) and in free air (right) around the Mount Etna Central Crater
Posted inEditors' Highlights

Radon Enrichment in the Volcanic Plume of Mount Etna

by Corentin Caudron 5 October 202017 November 2022

More than 70 passive sensors on Mount Etna have captured the first radon measurements in volcanic plumes and show that radon could affect people around volcanoes.

Scientists stand at the crater rim at Kīlauea Volcano on 26 October 2019
Posted inFeatures

From Lava to Water: A New Era at Kīlauea

by P. A. Nadeau, A. K. Diefenbach, S. Hurwitz and D. A. Swanson 25 September 20204 October 2021

At Kīlauea Volcano, scientists are using unoccupied aircraft to monitor the new water lake, a possible harbinger of explosive activity, that formed after the volcano’s 2018 eruption.

Schematic showing behavior of magma in the Main Ethiopian Rift
Posted inEditors' Highlights

Gas-Rich, Transcrustal Magma Storage in the Main Ethiopian Rift

by Claudio Faccenna 14 August 202024 March 2023

Increments of melt trapped in crystals reveal upper crustal magmas in the Main Ethiopian Rift are rich in water and other volatiles, leading to extensive diffuse degassing and hydrothermal systems.

Illustration of lightning at Jupiter’s north pole
Posted inFeatures

Rayos Planetarios: Misma Física, Mundos Distantes

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 13 August 202012 April 2022

Un rayo en el planeta Tierra necesita sólo algunos simples ingredientes para generar una chispa. Esos ingredientes existen en todo el sistema solar y más allá.

Satellite view of Santorini, Greece
Posted inNews

Podcast: Escape from Thera

Liza Lester, staff writer by L. Lester 21 July 20206 September 2023

A colossal volcanic eruption at Santorini, Greece, 3,600 years ago sent the island’s Bronze Age population fleeing for their lives. Where did the people go?

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