volcanology

With austral winter nearing its end, clouds cleared for a satellite view of volcanic activity in the remote South Atlantic.

For nearly five centuries, the Krasheninnikov volcano in Russia's Kamchatka Peninsula had not erupted. Nor...

The sequence of six paroxysmal eruptions that occurred between July and August 2024 at Mt. Etna’s Voragine crater has been investigated in order to constrain the plumbing system dynamics. Whole-rock and glass major-element analyses have been integrated with a detailed petrological study of erupted products, focusing on olivine major-element compositions to track magma storage and transfer dynamic…

Pit craters are observed throughout the solar system, but are rarely seen forming. Here we document pit crater formation and characteristics following the 2011–2012 Cordón Caulle rhyolitic eruption using satellite and drone data with field observations. Syn-eruptive shallow intrusion (laccolith) uplift and subsequent subsidence at Cordón Caulle are found to be responsible for the creation of faul…

A team of scientists has made an astonishing discovery on an underwater volcano off the Pacific coast: it is still active, covered in giant eggs, and that’s not all.

Pyroclastic density currents (PDCs) are among the most lethal volcanic phenomena and are mainly generated by column collapse, lateral blasts, or dome failure. An additional but still poorly constrained hazard is represented by PDCs produced by the collapse of hot volcaniclastic deposits. Here we investigate deposit-derived (dd) PDCs emplaced during the 1944 eruption of Vesuvius (Italy). We integr…

Researchers have figured out how to use lunar samples to determine the nature of volcanic activity on ancient Mercury. It's all based on SiO2, or silicon dioxide. Its abundance in a planet's crust reveals a lot about magma and volcanic activity.

Underwater sound signals created by 2022’s enormous Hunga eruption have pointed scientists to a new way to warn people of unpredictable volcanic tsunamis.

Following the 2018–2020 Fani Maoré submarine eruption near Mayotte Island, Indian Ocean, multiple oceanographic expeditions provide unprecedented access to fresh alkaline volcanic glasses spanning basanite to phonolite compositions from the East-Mayotte Volcanic Chain (EMVC). We applied Fe and S K-edge X-ray Absorption Near-Edge Spectroscopy (XANES) to determine iron and sulfur oxidation states i…

Turning 29k home weather stations and Gemini AI agents into a 15-minute volcanic warning shield Published Paper : Capturing Volcanic Lamb Waves and Blast Yields with Netatmo Weather Networks (ESS Open Archive) Abstract Explosive volcanic eruptions generate powerful atmospheric Lamb waves—acoustic-gravity waves trapped in the planetary boundary layer that travel horizontally across the globe at so…

Table of Contents TLDR India has exactly one confirmed active volcano — Barren Island in the Andaman Sea, which erupted three times in 2025 alone. Everything else on the usual... The post Every Volcano in India: Active, Dormant, and Extinct appeared first on 33Science .

TLDR California has 8 active volcanic areas monitored around the clock by the USGS California Volcano Observatory (CalVO). Only one has erupted in recorded history: Lassen Peak, which blew intermittently... The post California’s 8 Active Volcanoes, Ranked by Risk appeared first on 33Science .

More than two kilometres beneath the surface of the Pacific, off the coast of Oregon, an active underwater volcano has been hiding one of the strangest landscapes ever mapped on the seafloor. Using robotic vehicles capable of withstanding crushing depths, scientists from the Monterey Bay Aquarium Research Institute have spent more than two decades surveying […]

A vast plume rising from deep inside Earth may be responsible for mysterious movements along the East African Rift. The discovery reveals how forces deep in the mantle are working alongside shallower geological forces as the continent slowly pulls apart.

Each month we feature specific Divisions of EGU and during the monthly GeoRoundup we put the journals that publish science from those Divisions at the top of the Highlights section. For August, we are featuring the Natural Hazards (NH), Geochemistry, Mineralogy, Petrology & Volcanology (GMPV), and Geodesy (G). They are represented by the journals Solid Earth (SE), Geoscientific Model Development …

Rebecca Bussard, postdoctoral scholar in the Department of Geosciences at Penn State, will give the talk “Mitigating Atmospheric Noise in InSAR Time-series Over Volcanic Targets Using a Convolutional Neural Network,” at 2 p.m. on Friday, Sept. 4, in 117 Earth and Engineering Sciences Building on the University Park campus and via Zoom.

The ocean floor's violent geology remains largely hidden—until robotic expeditions reveal how molten rock sculpts the seafloor in ways that challenge what we thought we knew about underwater volcanism.

TLDR Spain has active volcanoes, but only in one place: the Canary Islands. Tenerife’s Mount Teide is the country’s tallest peak and a monitored, dormant-but-not-extinct stratovolcano. La Palma’s Cumbre Vieja... The post Volcanoes in Spain: Where They Are and Which Are Active appeared first on 33Science .