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volcanoes

The explosive eruption of Hunga Tonga–Hunga Ha’apai in the South Pacific
Posted inResearch Spotlights

Tonga Eruption Made Waves in Earth’s Ionosphere

by Jack Lee 21 April 202230 November 2022

The blast from Hunga Tonga–Hunga Ha’apai produced far-reaching ionospheric disturbances, including one with an initial speed up to 950 meters per second.

Photograph of the southern flank of the Merapi volcano during a partial collapse
Posted inNews

Drones Discover Hidden Weaknesses of Collapsing Volcanoes

by Clarissa Wright 7 April 20221 June 2022

Understanding buried, hidden zones of structural weaknesses within Indonesia’s Merapi volcano can help to substantially advance our ability to predict catastrophic dome failures.

A volcanic eruption spews molten rock into the sky.
Posted inNews

Magma Lingers at Different Depths on the Basis of Its Water Content

Katherine Kornei, Science Writer by Katherine Kornei 4 April 202225 April 2022

The discovery, gleaned from observations of volcanoes on four continents, could help constrain models of volcanic eruptions.

In the humid highlands of San Cristóbal Island, researchers take soil samples from a pit.
Posted inNews

The Galápagos Islands: The Ultimate Outdoor Soil Science Laboratory

by DJ McCauley 28 March 202228 March 2022

A new study has spurred further research into the impacts of soil formation on modern-day problems like heavy metal contamination in agricultural soils.

Tree-lined cliffs and hills rise from a coastal beach where ocean waves gently wash ashore.
Posted inFeatures

Exploring Subduction Zone Geohazards on Land and at Sea

by Mong-Han Huang, Kristin Morell, Alison Duvall, Sean F. Gallen and George E. Hilley 25 March 20221 June 2022

A new initiative is bringing together scientists to address fundamental questions about subduction zone geohazards, using the latest advances in observation technology and computational resources.

A river of molten lava flows across a steaming black basalt landscape. The river flows from a volcanic rift near the top right of the image toward the bottom left. The fissure is filled with brighter and hotter lava and steam and gas billows up from it. The sky on the horizon is a hazy blue-gray.
Posted inNews

The Surprising Greenhouse Gas That Caused Volcanic Summer

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 21 March 202212 April 2022

Extended periods of volcanism known as flood basalt eruptions lead to volcanic winters, which are often followed by an extended period of warming. But it was more than just carbon dioxide that warmed the globe.

The Krafla geothermal power station in northern Iceland
Posted inResearch Spotlights

Innovative Model Elucidates Geothermal Energy Resource

Aaron Sidder, freelance science writer by Aaron Sidder 14 March 20225 December 2022

Data from deep wells and a Bayesian modeling framework shed new light on one of Iceland’s valuable geothermal reservoirs.

Aerial view looking over a coastal island city
Posted inFeatures

A Cagey Approach to Speedy and Safe Seafloor Deployments

by Pascal Pelleau, Ronan Apprioual, Antony Ferrant and Daniel Aslanian 11 March 20227 November 2024

Researchers devised a simple way to deliver ocean bottom seismometers accurately to the seafloor to study ongoing seismic and volcanic activity near the islands of Mayotte.

Satellite image of Anak Krakatau, Indonesia, with one slope covered in sediment.
Posted inENGAGE, News

Which Came First, the Eruption or the Landslide?

by Saima May Sidik 25 February 202227 March 2023

Anak Krakatau’s eruption was accompanied by a devastating tsunami. But was the eruption to blame?

Time series of the vertical daily average displacement of continuous GNSS station.
Posted inEditors' Highlights

Continuity is the Father of Success

by Yosuke Aoki 15 February 202215 November 2022

Geodetic measurements indicate that Three Sisters Volcano uplifted by almost 300 millimeters in the past 25 years without significant anomalies at the surface.

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The Role of Tidal Wetlands in the Global Nitrogen Cycle Under Global Change

27 July 202627 July 2026
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The Hidden Costs of Mining River Sand

27 July 202627 July 2026
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