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.
Large volcanic eruptions may have played a bigger role in triggering historical famines across China than previously understood, according to a new study that traced links between eruptions, climate disruption, and food shortages ...
Harwati clasped her hands and offered a prayer on the edge of a sludge lake on the Indonesian island of Java, as dozen of residents gathered to mark two decades since mud volcano eruptions began displacing thousands.
Environment
May 31, 2026
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Some 350,000 years ago, the center of New Zealand's North Island appeared much different than the mountainous, scrub-covered landscape it is today. Amid a glacial period, temperatures were colder and conditions harsher. Vast ...
Earth Sciences
May 30, 2026
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Residents in the East Java province of Indonesia scattered flowers, paid their respects and prayed at the edge of a mud lake on Friday, the 20th anniversary of the eruption of the Lusi mud volcano that inundated villages ...
Environment
May 29, 2026
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The volcano on Indonesia's Halmahera Island routinely ejects ash, volcanic gases, and volcanic bombs. In May 2026, the Global Volcanism Program reported nine actively erupting volcanoes in Indonesia—more than any other country ...
Earth Sciences
May 27, 2026
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Located in the middle of the North Pacific, between Japan and Canada, lies one of the world's largest oceanic plateaus, the so-called Hess Rise. The plateau is roughly T-shaped and extends over a length of about 1,000 kilometers. ...
Earth Sciences
May 24, 2026
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New research from the University of St Andrews has precisely dated an eruption from Newberry Volcano and discovered that its ash spread more than 5,000 km across the globe, far further than previously thought for an eruption ...
Earth Sciences
May 21, 2026
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It's a truism among oceanographers that there is more accurate mapping of the surface of the moon and Mars than of the deep-ocean floor. That's especially true for the Bismarck Sea, a relatively deep body of water north of ...
Planetary Sciences
May 21, 2026
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It all began with a perfectly ordinary chat over coffee between four researchers. How many films featuring geologists can we think of? Quite quickly, the colleagues were able to come up with about 10 films. But then the scientific ...
Earth Sciences
May 13, 2026
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Near-constant activity continues on the volcano in Russia. Shivelyuch (also called Shiveluch), the most northerly active volcano on the Kamchatka Peninsula, is one of the most active volcanoes in the world. On a near-daily ...
Earth Sciences
May 6, 2026
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