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.
Mount Lewotobi Laki Laki, one of Indonesia's most active volcanoes, erupted for a second straight day Wednesday, spewing towering columns of hot ash that later blanketed villages. No casualties were immediately reported.
Environment
Oct 15, 2025
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Explosive volcanic eruptions on early Mars may have transported water ice to equatorial regions, according to a modeling study published in Nature Communications. The authors suggest that these eruptions could have led to ...
Planetary Sciences
Oct 14, 2025
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57
How do volcanoes work? What happens beneath their surface? What causes the vibrations—known as tremor—that occur when magma or gases move upward through a volcano's conduits? Professor Dr. Miriam Christina Reiss, a volcano ...
Earth Sciences
Oct 13, 2025
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97
A research group in Japan has suggested that ash released from volcanic eruptions on Nishinoshima Island—part of Japan's Ogasawara Islands—led to a temporary surge in phytoplankton levels in the seawater around Mukojima Island, ...
Earth Sciences
Oct 2, 2025
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29
Hawaii's Kilauea volcano has been shooting lava from its summit crater at semiregular intervals since late last year, delighting residents, visitors and online viewers alike with a fire hose of molten rock.
Environment
Oct 1, 2025
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40
What type of lander could touch down on Jupiter's volcanic moon, Io? This is what a recent paper presented at the AIAA 2025 Regional Student Conference hopes to address as a team of student engineers from Spartan Space Systems ...
Planetary Sciences
Sep 30, 2025
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50
A collaborative research team led by University of Tasmania scientists has returned from a major 54-day voyage on CSIRO research vessel (RV) Investigator to explore the impacts of the devastating 2022 eruption of Tonga's ...
Earth Sciences
Sep 29, 2025
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44
Tens of thousands of earthquakes shook the Greek island of Santorini and the surrounding area at the beginning of the year. Now, researchers have published a comprehensive geological analysis of the seismic crisis in the ...
Earth Sciences
Sep 24, 2025
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175
In a science lab on the fourth floor of UTSA's Multidisciplinary Studies Building, UTSA students engage in meticulous choreography around a glowing furnace, melting rocks to produce lava.
Planetary Sciences
Sep 24, 2025
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21
Researchers have built on past studies and introduced new methods to explore the nature and role of subsurface fluids, including water, in the instances and behaviors of earthquakes and volcanoes. Their study suggests that ...
Earth Sciences
Sep 24, 2025
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