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.
A research team has uncovered surprising evidence of cross-border pollution reaching the Arctic, originating from an Icelandic volcanic eruption. The researchers used a cutting-edge combination of satellite and ground-based ...
Earth Sciences
Apr 22, 2025
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In a study co-authored by a Texas A&M University scientist, researchers have revealed new insights into the geological history of Mars's Jezero Crater, the landing site of NASA's Perseverance rover. Their findings suggest ...
Astrobiology
Apr 19, 2025
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210
Beneath Yellowstone lies a magma reservoir, pulsing with molten and superheated rock and exsolved gases. Scientists have long known about the chamber's existence, but have yet to precisely locate its uppermost boundary and ...
Earth Sciences
Apr 16, 2025
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Volcanoes inspire awe with spectacular eruptions and incandescent rivers of lava, but often their deadliest hazard is what quietly falls from the sky.
Earth Sciences
Apr 15, 2025
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When the Kīlauea Volcano erupted in May 2018, an enormous amount of ash was released into the atmosphere in a plume nearly five miles high. A new study by an international team of researchers revealed that a rare and large ...
Earth Sciences
Apr 9, 2025
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781
Scientists were bracing for high lava fountains Tuesday during the latest episode of an ongoing eruption of Hawaii's Kilauea volcano.
Environment
Apr 9, 2025
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35
Estimates of carbon dioxide (CO2) emissions from volcanoes may have been significantly underestimated, according to new research by The University of Manchester.
Earth Sciences
Apr 2, 2025
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264
When Hunga Tonga–Hunga Haʻapai, an underwater volcano near Tonga in the South Pacific Ocean, erupted in 2022, scientists expected that it would spew enough water vapor into the stratosphere to push global temperatures past ...
Earth Sciences
Apr 2, 2025
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101
What can a sample return mission from Jupiter's volcanic moon, Io, teach scientists about planetary and satellite (moon) formation and evolution? This is what a recent study presented at the 56th Lunar and Planetary Science ...
Planetary Sciences
Apr 1, 2025
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43
A volcano in southwestern Iceland that has erupted repeatedly for more than a year again belched lava and smoke into the air on Tuesday, just hours after authorities evacuated the few remaining residents of a nearby fishing ...
Environment
Apr 1, 2025
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