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.
Lava from Hawaii's most active volcano created fountains that reached 700 feet (215 meters) Thursday during the latest episode of an ongoing eruption.
Environment
Mar 20, 2025
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60
A volcano near Alaska's largest city is showing new signs of unrest, with experts saying the likelihood of an eruption at Mount Spurr in the next few weeks or months has increased.
Environment
Mar 13, 2025
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59
The 2019 volcanic explosion on Whakaari/White Island, which killed 22 people touring the crater and severely injured 25, is one of New Zealand's worst disasters.
Environment
Mar 12, 2025
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An erupting Hawaii volcano once again began shooting fountains of lava that reached hundreds of feet high on Tuesday.
Environment
Mar 12, 2025
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Even by the standards of Io, the most volcanic celestial body in the solar system, recent events observed on the Jovian moon are extreme.
Planetary Sciences
Jan 28, 2025
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189
Rootless cones are small volcanic landforms ranging from several to several hundred meters in diameter, formed by continuous explosions resulting from the interaction between surface lava and water bodies like lakes and rivers. ...
Planetary Sciences
Jan 27, 2025
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Through the intricate study of lava tubes—caves formed following volcanic eruptions when lava cools down—an international team of researchers has uncovered clues about Earth's ancient environments that could be significant ...
Astrobiology
Nov 18, 2024
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110
Basalt samples returned by the Chang'e-6 mission have revealed volcanic events on the lunar farside at 2.8 billion years ago (Ga) and 4.2 Ga, according to research conducted by Prof. Li Qiuli's lab at the Institute of Geology ...
Planetary Sciences
Nov 15, 2024
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66
Mount Vesuvius, Krakatoa, Mount St. Helens: Since the formation of Earth approximately 4.5 billion years ago, the convection and release of hot magma in its mantle layer has famously led to some of the deadliest eruptions ...
Planetary Sciences
Nov 14, 2024
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