Tag

Volcanoes

All articles tagged with #volcanoes

science2 days 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

science15 days 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

science1 month 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

science2 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

science4 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

science4 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

science4 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

science5 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

world6 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

science6 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

science7 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

science7 months ago•4 min saved

China Unveils 400-Mile Fossilized Volcano Chain

Researchers discovered a 400-mile-long chain of fossilized volcanoes beneath the Sichuan Basin in China, formed during the breakup of the supercontinent Rodinia around 800 million years ago due to flat-slab subduction, which may have influenced Earth's past climate and expanded understanding of ancient crust formation.

via Live Science|

#china #geology #neoproterozoic

science-and-environment7 months ago•2 min saved

Researchers Warn of Dormant Volcanoes Reactivating Like a Shaken Soda

Researchers warn that melting glaciers due to climate change could trigger dormant volcanoes to erupt, posing significant risks to nearby communities and ecosystems, as the reduction in ice weight releases pressure on magma chambers, similar to opening a soda bottle. This phenomenon has been observed in the Chilean Andes and is expected to occur in other regions like Alaska, Iceland, and Antarctica, emphasizing the need for improved monitoring and proactive measures to mitigate potential disasters.

via Yahoo Home|

#climate-change #earthquake-risk #glacier-melting

science7 months ago•3 min saved

Hidden Deep Earth Blobs Could Trigger Future Extinctions and Volcanic Eruptions

A new study suggests that large basal structures in Earth's mantle, called BLOBS, are likely to move slowly over time, which could influence the location of massive volcanic eruptions and potentially impact future mass extinctions. Researchers reconstructed Earth's mantle dynamics over billions of years, finding that BLOBS drift at about one centimeter per year, affecting mantle plumes and volcanic activity.

via Yahoo|

#blobs #geology #mantle-convection

science7 months ago•4 min saved

Scientists Alert on Potential Massive Eruptions from Mount Rainier and Pacific Volcanoes

Recent increased volcanic activity across the Pacific Ring of Fire, including Mount Rainier's seismic swarm and ongoing eruptions at Alaska's Great Sitkin and Hawaii's Kilauea, has raised concerns among scientists about potential hazards like lahars and ash clouds, emphasizing the need for continued monitoring and preparedness.

via The Daily Galaxy|

#eruption #mount-rainier #ring-of-fire