Tag

Volcanoes

All articles tagged with #volcanoes

earth-science2 days ago•16 min saved

Yellowstone's Heat Source Traced to Shallow Mantle, New Study Finds

A new 3D model of Yellowstone and the Eastern Snake River Plain suggests tectonic forces within the lithosphere drive magma generation and migration from the shallow mantle (upper asthenosphere) into a complex plumbing system, rather than a deep mantle plume powering a single giant chamber. This tectonically controlled magma movement could improve eruption forecasting and hazard assessment for the park’s massive caldera, whose last major eruption occurred about 630,000 years ago and is not expected imminently.

via Gizmodo|

#earth-science #magma #mantle

earth-science15 days ago•13 min saved

Volcanoes That Talk: Tracing the Hidden Magma Highway Between Peaks

Scientists are identifying and studying

via Quanta Magazine|

#coupled-volcanoes #earth-science #machine-learning

environment29 days ago•16 min saved

Lake Laach seismic study reveals tilted underground reservoir, not an imminent eruption

Scientists tracing Germany’s dormant Lake Laach volcano logged over 1,000 microearthquakes in a year, mapping a buried, tilted magma reservoir that leans toward the Neuwied Basin. Using 500 sensors and a fiber-optic line, they see a crustal system likely driven by moving fluids, which could indicate pressure changes but does not prove an eruption is imminent. The study, published in Geophysical Journal International, reframes the area as an active, watch-worthy volcanic field with a new baseline for monitoring future unrest.

via Earth.com|

#earthquakes #environment #europe

earth-science1 month ago•4 min saved

Lake Coatepeque: A Blue Caldera Seen from the ISS

NASA’s Earth Observatory highlights Lake Coatepeque in El Salvador, a blue caldera lake formed by ancient eruptions. A February 10, 2026 ISS image captures the surrounding volcanic landscape and the caldera’s rim near Santa Ana; while Santa Ana remains active, Coatepeque has had no eruptions in the Holocene. The lake’s sometimes turquoise color is linked to natural mineralization and pigments from microalgae/cyanobacteria. The image, taken with a Nikon Z9, illustrates the Central American Volcanic Arc and the human development around the lake.

via NASA Science (.gov)|

#astronaut-photography #caldera #earth-science

science1 month ago•2 min saved

Sea-floor Giant Redefines Earth's Largest Volcano

Volcanoes come in various forms, including supervolcanoes that produce enormous eruptions (VEI 8), create surface depressions, and erupt infrequently. Yellowstone is a famous example. The largest volcano on Earth is actually underwater: Tamu Massif in the Pacific, about 310,000 square kilometers in area with roots extending ~30 kilometers into the crust, formed around 145 million years ago and now extinct. Mauna Loa was previously considered the largest on land, while Olympus Mons is often cited for scale in comparisons.

via BBC Wildlife Magazine|

#mauna-loa #science #supervolcano

science1 month ago•4 min saved

Home Reef Expands Amid Ongoing Eruptions, Growing Island in Tonga

NASA’s Earth Observatory reports that Home Reef, a mid-ocean volcano near Tonga, continued erupting from December 2025 into February 2026, expanding its land area by about 8 hectares as lava flows extended the island; satellite data from Landsat 8/9, MODIS, and VIIRS tracked growth and gas plumes, while authorities say the current activity poses low risk to nearby populations.

via NASA Science (.gov)|

#home-reef #landsat #nasa-earth-observatory

science3 months ago•5 min saved

Potential Catastrophic Volcanoes Threaten Humanity's Future

Large Igneous Provinces (LIPs) are massive, long-lasting volcanic events capable of causing global destruction and mass extinctions, with historical examples like the Siberian Traps illustrating their potential to reshape Earth's environment and climate. While rare today, understanding LIPs is crucial for preparedness, as their effects include climate disruption, ecosystem collapse, and potential threats to civilization.

via Indian Defence Review|

#climate-change #earth-history #lips

science3 months ago•11 min saved

Melting glaciers could trigger deadly volcanoes

Melting glaciers due to climate change may increase the risk and size of volcanic eruptions, especially in ice-covered volcanoes like Iceland's Bardarbunga, potentially leading to more explosive and dangerous eruptions as the Earth's crust responds to the loss of ice weight, with global implications for other glaciated volcanoes worldwide.

via CNN|

#climate-change #eruption-risk #glaciers

science5 months ago•1 min saved

Unusual Gold Locations on Earth and Your Body

Gold can be found in unexpected places such as the human body, seawater, meteorites, volcanoes, and even within plants, highlighting its diverse natural presence beyond traditional mining sources.

via WION|

#gold #human-body #meteorites

science5 months ago•3 min saved

Dual 15th-Century Antarctic Volcanoes May Have Triggered Climate Cooling

Researchers analyzing Antarctic ice cores suggest that a 1458/59 volcanic eruption was caused by two simultaneous eruptions from Kuwae in Vanuatu and an undocumented Southern Hemisphere volcano, which may explain the decade-long cooling in the 15th century.

via Phys.org|

#antarctica #climate-change #eruption

science6 months ago•4 min saved

Massive magma chambers found beneath supposedly dormant volcanoes

A recent study using earthquake wave analysis revealed large, persistent magma pockets beneath several dormant Cascade volcanoes, indicating that these volcanoes still hold significant melt at depth, which could influence future volcanic activity. The findings highlight the importance of continuous monitoring and advanced imaging techniques to better understand volcanic behavior and potential eruption risks.

via Earth.com|

#cascade-range #earthquake-waves #magma-chambers

science6 months ago•4 min saved

Magma-Submerged Land: Potentially Reshaping Earth's Continents

Scientists have discovered massive, branching mantle plumes beneath Earth that have historically shaped and may continue to reshape the planet's continents, including the formation of volcanic hotspots and the potential for future continental reconfigurations over millions of years.

via valleyvanguardonline.com|

#earths-continents #geophysics #mantle-plumes

world7 months ago•2 min saved

Top 5 Deadly Spots on Earth

The article highlights five dangerous locations on Earth—Lake Nyos in Cameroon, the Danakil Depression in Ethiopia, Mount Sinabung in Indonesia, Boiling Lake in Dominica, and Death Valley in the USA—where the environment can cause instant death due to toxic gases, extreme heat, volcanic eruptions, or unstable terrain, reminding us of nature's lethal power.

via WION|

#deadly-places #extreme-temperatures #nature-hazards

science7 months ago•4 min saved

Japan's Aso Caldera: A Supervolcanic Time Bomb from Space

The Aso Caldera in Japan is a massive volcanic crater housing 17 volcanoes, including active ones like Nakadake, and is considered one of Earth's nine supervolcanoes, with a history of massive eruptions and located along the Pacific Ring of Fire.

via Live Science|

#aso-caldera #earth-from-space #japan

science8 months ago•5 min saved

Scientists Discover 400-Mile Chain of Fossilized Volcanoes Beneath South China

Geologists have discovered a 400-mile-long chain of fossilized volcanoes beneath the Sichuan Basin in southern China, dating back around 800 million years. This find sheds light on early Neoproterozoic tectonic activity, particularly the process of flat-slab subduction, and has implications for understanding Earth's geological history and climate regulation during that era.

via Indian Defence Review|

#ancient #china #geology