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Volcanic Activity

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28 connected topics.


News and Opinion

Coverage of volcanic activity since July 6, 2021.

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Monsoon rains flood Philippine villages, thousands evacuate

"...Many of the residents were evacuated from flood-prone villages in Marikina overnight, depriving them of sleep, said Teodoro. He blamed years of illegal logging in nearby mountains and heavy siltation in Marikina River for constant flooding in his city..."

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At least 60 dead, dozens missing as severe floods cause havoc across western Europe

"...Authorities in the Rhine-Sieg county south of Cologne ordered the evacuation of several villages below the Steinbach reservoir amid fears a dam could break. Two firefighters died in rescue operations in North-Rhine Westphalia, Germany’s most populous state. Gov..."

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Fossilized

"...Around 66 million years ago, a gigantic asteroid smashed into the Earth and brought the 160-million-year reign of the dinosaurs to an end. Now, researchers have discovered direct evidence of this world-changing cataclysm in the form of fossilized “megaripples” from the tsunamis that followed in the immediate aftermath. As fast as our current climate seems to be changing, it’s a leisurely stroll compared to the end of the Cretaceous period..."

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Health Matters: Dax vs. the volcano

"...Health Matters July 14: A young Sherwood Park boy has been fighting for his life, losing three kidneys in less than two years. Now Dax Abercrombie's medical team is hoping to cheer him up with a volcanic vacation. Su-Ling Goh reports..."

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Fire operations-prescribed burning combo reduces wildfire severity up to 72%

"...Firefighters battling wildfires in the western United States use a variety of suppression tactics to get the flames under control. Prescribed burns, or controlled fires intentionally set to clear shrubs and forest litter before a wildfire ever ignites, can make fire suppression operations almost three times as effective in limiting wildfire severity, according to a new study by researchers from Penn State, the U. S..."

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Oldest fossils of methane-cycling microbes expand frontiers of habitability on early Earth

"...Prof Barbara Cavalazzi, the lead author of the study, said: "We found exceptionally well-preserved evidence of fossilised microbes that appear to have flourished along the walls of cavities created by warm water from hydrothermal systems a few meters below the seafloor. Sub-surface habitats, heated by volcanic activity, are likely to have hosted some of Earth's earliest microbial ecosystems and this is the oldest example that we have found to date. "..."

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New research suggests explosive volcanic activity on Venus

"...Now Cornell scientists say the chemical fingerprint support a different and important scientific find: a geological signature, showing evidence of explosive volcanoes on the mysterious planet..."

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Record heatwaves likely to become more frequent in Greater Victoria, climate scientists say

"...While Anslow said there are non-human drivers of climate change – such as Earth’s orbit, the variability of energy coming from the sun and volcanic eruptions – he called the evidence “pretty much indisputable” that extreme temperature events are a result of human-caused changes to the climate..."

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Huge volcanic eruption disrupted climate but not human evolution

"...New Brunswick, N. J. (July 9, 2021) -- A massive volcanic eruption in Indonesia about 74,000 years ago likely caused severe climate disruption in many areas of the globe, but early human populations were sheltered from the worst effects, according to a Rutgers-led study..."

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To predict underwater volcano eruptions, scientist looks at images from space

"...There have been frequent eruptions of submarine volcanoes in recent years. The past two years alone recorded the explosions of Anak Krakatau in Indonesia, White Island in New Zealand, and Nishinoshima Island in Japan. Observing signs of volcanic unrest is crucial in providing life-saving information and ensuring that air and maritime travel are safe in the area..."

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Like a molten pancake

"...There are some large shield volcanoes in the world's oceans where the lava is usually not ejected from the crater in violent explosions, but flows slowly out of the ground from long fissures. In the recent eruption of the Sierra Negra volcano in the Galapagos Islands, which lie just under a thousand kilometres off South America in the Pacific Ocean, one of these fissures was fed through a curved pathway in June 2018. This 15 kilometre-long pathway, including the kink, was created by the interaction of three different forces in the subsurface, Timothy Davis and Eleonora Rivalta from the GFZ German Research Centre for Geosciences in Potsdam, together with Marco Bagnardi and Paul Lundgren from NASA's Jet Propulsion Laboratory in Pasadena, now explain based on computer models in the journal Geophysical Research Letters..."

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Reducing the melting of the Greenland ice cap using solar geoengineering?

"...The Greenland ice sheet will lose mass at an accelerated rate throughout the 21st century, with a direct link between anthropogenic greenhouse gas emissions and the extent of Greenland's mass loss. To combat this phenomenon, and therefore global warming, it is essential to reduce our greenhouse gas emissions. Every day new ideas emerge to slow down global warming, such as the use of solar geoengineering, a climate intervention that consists of artificially reducing solar radiation above the ice caps and thus limiting the melting of the ice..."

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Recommended Reading

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Podcasts

Recent episodes that mention volcanic activity.

Clive Oppenheimer on the volcanic offerings of our angry earth

Duration: 28:46

"...Clive Oppenheimer has, more than once, been threatened with guns (a Life Scientific first?)..."

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Tamsin Mather on what volcanic plumes reveal about our planet

Duration: 28:15

"...To volcanologist Tamsin Mather, volcanoes are more than a natural hazard. ..."

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Informative Video

Discussions, Documentaries, and Investigative Reports about volcanic activity.

Iceland - Home of Europe's Strongest Horses | Free Documentary Nature

"...The biggest volcanic island in the world is known for its grandiose landscape, for its geysers and glaciers..."

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GREENLAND TSUNAMI Hits Village Caught On Camera - Camera 2 (Multiple Clips) | Nuugaatsiaq, Greenland

"...Megatsunamis are caused by giant landslides and other impact events (including meteorite impacts in an ocean), while ordinary tsunamis are usually caused by underwater earthquakes or volcanic eruptions (which do not normally generate such large waves)..."

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GREENLAND TSUNAMI: Teenager Films While Getting Flushed Away #shorts

"...Megatsunamis are caused by giant landslides and other impact events (including meteorite impacts in an ocean), while ordinary tsunamis are usually caused by underwater earthquakes or volcanic eruptions (which do not normally generate such large waves)..."

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Uncut and Unseen: Greenland Tsunami (First Wave to Largest Wave in 6 mins.)

"...Megatsunamis are caused by giant landslides and other impact events (including meteorite impacts in an ocean), while ordinary tsunamis are usually caused by underwater earthquakes or volcanic eruptions (which do not normally generate such large waves)..."

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Academic Research

Recent peer-reviewed papers about volcanic activity relevant to the latest news.

Tsunami risk management for crustal earthquakes and non-seismic sources in Italy

"...Tsunamis may indeed be generated by different sources, such as earthquakes, submarine or coastal landslides, volcano-related phenomena, and atmospheric perturbations..."

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Contribution to petrogenesis of the Paleoproterozoic Basaltic Magmatism from the Araí continental rift, central Brazil

"...These new data are nicely correlated with the available isotopic data (U–Pb, Sm–Nd, Sr–Sr) on the acid volcanic and A-type granites from the basal portion of the Araí rift, indicating an important bimodal magmatic event, with volcano-plutonic characteristics, occurred during the continental syn-rift stage..."

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Vegetation dynamics under residual large trees following a volcanic eruption in a Valdivian temperate rainforest

"...Airborne volcanic ejecta (tephra) can strongly influence forest ecosystems through initial disturbance processes and subsequent ecological response..."

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The Economics of Volcanoes

"...Volcanic hazards pose a potential threat to 8% of the world?s population, yet the economic literature on their short- and long-term consequences on household behavior and economic development is still in its infancy..."

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A comprehensive investigation of the Galilean moon, Io, by tracing mass and energy flows

"...Io is the most volcanically-active object in the solar system..."

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Multidisciplinary Study of the Impacts of the 1600 CE Huaynaputina Eruption and a Project for Geosites and Geo-touristic Attrac

"...The Huaynaputina volcano, southern Peru, was the site of the largest historical eruption (VEI 6) in the Andes in 1600 CE, which occurred during the historic transition between the Inca Empire and the Viceroyalty of Peru..."

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Cassiterite U-Pb dating of the lower Cretaceous Yanbei tin porphyry district in the Mikengshan volcanic basin, SE China

"...There are several tin deposits of greisen, stockwork and vein styles associated to the intrusive center of the 8 × 8 km large Mikengshan volcano-plutonic complex..."

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The topography of the Iberian Peninsula from integrated geophysical-petrological multi-data inversion

"...The thinnest lithosphere in our models is found below the south-eastern Mediterranean margin (<80 km), overlapping with the Neogene Tallante-Cabo de Gata volcanic fields..."

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Tectonostratigraphic evolution, palaeogeography and main petroleum plays of the Nuussuaq Basin: An outcrop analogue for the Cret

"...The Nuussuaq Basin experienced significant subsidence during the initial phase of break-up volcanism with deposition of organic-rich Lower Paleocene marine mudstones blanketing the basin followed by a thick succession of Paleocene–Eocene volcanic rocks referred to as the West Greenland Basalt Province (TSS8–9)..."

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Upper Mesozoic stratigraphy of Sikhote-Alin (Russian Far East) and northeastern China: Non-marine and marine correlations. Part

"...On the rest of the territory of northeastern China, upper Mesozoic rocks are represented by non-marine sedimentary and volcanogenic deposits..."

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Trace element fractionation and precipitation in submarine back-arc hydrothermal systems, Nifonea caldera, New Hebrides subducti

"...Hydrothermal activity is abundant at volcanic structures in subduction zones, including those associated with young volcanism in back-arc regions..."

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