Volcanic activity encompasses all processes associated with the movement and eruption of magma and volatiles from Earth’s interior to its surface, including effusive lava flows, explosive eruptions, degassing, and the formation of associated edifices and deposits. It is governed by magma generation in the mantle and crust, melt composition, temperature, volatile content, and tectonic setting (e.g., subduction zones, rifts, hotspots). Volcanic activity is studied through petrology, geophysics, gas geochemistry, geodesy, and remote sensing to quantify eruption dynamics, magma ascent rates, and hazard potential, and it exerts major controls on crustal growth, surface morphology, and volatile fluxes to the atmosphere and hydrosphere.
An international assessment report has been released to provide definitive statements on the atmospheric impacts from a huge volcanic eruption in 2022.
Earth Sciences
Dec 18, 2025
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1940
On November 23, 2025, the Hayli Gubbi volcano in northern Ethiopia erupted in dramatic fashion. The shield volcano in the Danakil (or Afar) Depression began spewing ash and volcanic gases at around 11:30 a.m. local time (8:30 ...
Environment
Dec 8, 2025
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27
Clues contained in tree rings have identified mid-14th-century volcanic activity as the first domino to fall in a sequence that led to the devastation of the Black Death in Europe.
Earth Sciences
Dec 4, 2025
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66
What is the importance of studying explosive volcanism on Venus? This is what a study published in the Journal of Geophysical Research: Planets hopes to address as a team of scientists investigated the potential altitudes ...
Planetary Sciences
Dec 1, 2025
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18
The on-and-off eruption that's been dazzling residents and visitors on Hawaii's Big Island for nearly a year resumed Tuesday as Kilauea volcano sent fountains of lava soaring 400 feet (122 meters) into the air.
Environment
Nov 26, 2025
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21
Volcanic activity in northern Ethiopia's long-dormant Hayli Gubbi volcano subsided Tuesday, days after an eruption that left a trail of destruction in nearby villages and caused flight cancellations after ash plumes disrupted ...
Environment
Nov 26, 2025
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36
The next global volcanic disaster is more likely to come from volcanoes that appear dormant and are barely monitored than from the likes of famous volcanoes such as Etna in Sicily or Yellowstone in the US.
Earth Sciences
Nov 25, 2025
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35
Up to 30% of life, by weight, is underground. Seismic activity may renew the energy supply for subterranean ecosystems. Published in PNAS Nexus, Eric Boyd and colleagues chronicled the ecological changes in subsurface microbial ...
Earth Sciences
Nov 25, 2025
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533
The Hayli Gubbi volcano in northeast Ethiopia, believed to have been dormant for up to 12,000 years, erupted on 23 November 2025, sending a massive plume of ash and sulfur dioxide high into the atmosphere.
Earth Sciences
Nov 25, 2025
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30
A long-dormant volcano erupted in northern Ethiopia over the weekend, sending ash plumes across the Red Sea toward Yemen and Oman.
Environment
Nov 24, 2025
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20
