Current Volcanic ash News and Events

Current Volcanic ash News and Events, Volcanic ash News Articles.
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Offshore submarine freshwater discovery raises hopes for islands worldwide
Twice as much freshwater is stored offshore of Hawai'i Island than previously thought, revealed a University of Hawai'i study with important implications for volcanic islands around the world. An extensive reservoir of freshwater within the submarine southern flank of the Hualālai aquifer was mapped by researchers with Hawai'i EPSCoR 'Ike Wai project, showing a way in which substantial volumes of freshwater are transported from onshore to offshore submarine aquifers along the coast of Hawai'i Island. (2020-11-25)

Electromagnetic imaging reveals freshwater cache off Hawai'ian coast
Pointing toward a much-needed future reservoir of freshwater for the island of Hawai'i in the face of climate-driven drought, electromagnetic images of the island have revealed multilayered basalt, ash and soil formations that serve as a previously unknown conduit to move freshwater offshore to the submarine flank of the island. (2020-11-25)

Volcanic eruptions have more effect in summer
Modeling shows that volcanic eruptions can cause changes in global climate, if the timing is right. (2020-11-18)

Ancient zircon minerals from Mars reveal the elusive internal structure of the red planet
Analysis of an ancient meteorite from Mars suggests that the mineral zircon may be abundant on the surface of the red planet. By determining the age and hafnium isotope composition of these zircons, researchers from the University of Copenhagen have shown that a population of these crystals were sourced from the deep interior of Mars. If the researchers are correct, it means that the young zircons contain information about the deep, inaccessible interior of Mars, which provides insights into the internal structure of the planet. (2020-11-17)

Piecing together the Alaska coastline's fractured volcanic activity
Among seismologists, the geology of Alaska's earthquake- and volcano-rich coast from the Aleutian Islands to the southeast is fascinating, but not well understood. Now, with more sophisticated tools than before, a University of Massachusetts Amherst team reports unexpected new details about the area's tectonic plates and their relationships to volcanoes. (2020-11-17)

Chemical clues in leaves can reveal ash tree resistance to deadly disease
Naturally occurring compounds in ash leaves could be linked to susceptibility of individual trees to the fungal disease ash dieback (ADB). But selecting trees with lower levels of these compounds and breeding for resistance could leave the UK ash tree population open to attack from invading insect pests in the future, according to scientists at the University of Warwick. (2020-11-11)

Large volcanic eruption caused the largest mass extinction
Researchers in Japan, the US and China say they have found more concrete evidence of the volcanic cause of the largest mass extinction of life. Their research looked at two discrete eruption events: one that was previously unknown to researchers, and the other that resulted in large swaths of terrestrial and marine life going extinct. (2020-11-10)

Radioactive elements may be crucial to the habitability of rocky planets
The amount of long-lived radioactive elements incorporated into a rocky planet as it forms may be a crucial factor in determining its future habitability. That's because internal heating from the radioactive decay of the heavy elements thorium and uranium drives plate tectonics and may be necessary for the planet to generate a magnetic field. Earth's magnetic field protects the planet from solar winds and cosmic rays. (2020-11-10)

Crystals reveal the danger of sleeping volcanoes
Most active volcanoes on Earth are dormant and are normally not considered hazardous. A team of volcanologists from the University of Geneva has devised a technique that can predict their devastating potential. The scientists used zircon, a tiny crystal contained in volcanic rocks, to estimate the volume of magma that could be erupted once Nevado de Toluca volcano (Mexico) will wake up from its dormancy. Up to 350 km3 of magma are currently lying below. (2020-11-05)

Magma 'conveyor belt' fuelled world's longest erupting supervolcanoes
International research led by geologists from Curtin University has found that a volcanic province in the Indian Ocean was the world's most continuously active -- erupting for 30 million years -- fuelled by a constantly moving 'conveyor belt' of magma. (2020-11-03)

New drone technology improves ability to forecast volcanic eruptions
Specially-adapted drones developed by a UCL-led international team have been gathering data from never-before-explored volcanoes that will enable local communities to better forecast future eruptions. The cutting-edge research at Manam volcano in Papua New Guinea is improving scientists' understanding of how volcanoes contribute to the global carbon cycle, key to sustaining life on Earth. (2020-10-30)

Specially-adapted drones gather data from unexplored volcanoes to better forecast eruptions
Specially-adapted drones developed by an international team have been gathering data from never-before-explored volcanoes that will enable local communities to better forecast future eruptions. The cutting-edge research at Manam volcano in Papua New Guinea is also improving scientists' understanding of how volcanoes contribute to the global carbon cycle, key to sustaining life on Earth. (2020-10-30)

A new way of looking at the Earth's interior
Current understanding is that the chemical composition of the Earth's mantle is relatively homogeneous. But experiments conducted by ETH researchers now show that this view is too simplistic. Their results solve a key problem facing the geosciences - and raise some new questions. (2020-10-21)

ALMA shows volcanic impact on Io's atmosphere
New radio images from ALMA show for the first time the direct effect of volcanic activity on the atmosphere of Jupiter's moon Io. (2020-10-21)

Lost and found: UH geologists 'resurrect' missing tectonic plate
A team of geologists at the University of Houston College of Natural Sciences and Mathematics believes they have found the lost plate known as Resurrection in northern Canada by using existing mantle tomography images. (2020-10-20)

Driver of the largest mass extinction in the history of the Earth identified
252 million years ago, at the transition from the Permian to the Triassic epoch, most of the life forms existing on Earth became extinct. Using latest analytical methods and detailed model calculations, scientists from the GEOMAR Helmholtz Centre for Ocean Research Kiel, in cooperation with the Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences and international partners, have now succeeded for the first time to provide a conclusive reconstruction of the geochemical processes that led to this unprecedented biotic crisis. (2020-10-19)

How a greenhouse catastrophe killed nearly all life
252 million years ago at the boundary between the Permian and Triassic epochs, Earth witnessed a mass extinction event that extinguished about three-quarters of all species on land and some 95 percent of all species in the ocean. Volcanic activity in today's Siberia has long been debated as a likely trigger of this event. Now, an international team of researchers provides for the first time a conclusive reconstruction of the key events that led to the mega-catastrophe. (2020-10-19)

Ground-breaking discovery finally proves rain really can move mountains
A pioneering technique which captures precisely how mountains bend to the will of raindrops has helped solve a long-standing scientific enigma. (2020-10-16)

Deep learning artificial intelligence keeps an eye on volcano movements
RADAR satellites can collect massive amounts of remote sensing data that can detect ground movements -- surface deformations -- at volcanoes in near real time. These ground movements could signal impending volcanic activity and unrest; however, clouds and other atmospheric and instrumental disturbances can introduce significant errors in those ground movement measurements. Now, Penn State researchers have used artificial intelligence (AI) to clear up that noise, drastically facilitating and improving near real-time observation of volcanic movements and the detection of volcanic activity and unrest. (2020-10-15)

Stressed out volcanoes more likely to collapse and erupt, study finds
An international study led by Monash scientists has discovered how volcanoes experience stress. The study, published in Scientific Reports, has implications for how the world might be better protected against future volcano collapses. (2020-10-15)

Volcanic eruptions may explain Denmark's giant mystery crystals
Researchers have long been stumped for an explanation of how tens of millions of years-old giant crystals known as glendonites came to be on the Danish islands of Fur and Mors. A recent study from the University of Copenhagen offers a possible explanation to the conundrum: major volcanic eruptions resulted in episodes of much cooler prehistoric climates than once thought. (2020-10-14)

Volcanic ash could help reduce CO2 associated with climate change
University of Southampton scientists investigating ways of removing carbon dioxide (CO2) and other greenhouse gases from our atmosphere believe volcanic ash could play an important role. (2020-09-29)

The testimony of trees: How volcanic eruptions shaped 2000 years of world history
Researchers have shown that over the past two thousand years, volcanoes have played a larger role in natural temperature variability than previously thought, and their climatic effects may have contributed to past societal and economic change. (2020-09-28)

Nanocrystals make volcanoes explode
Tiny crystals, ten thousand times thinner than a human hair, can cause explosive volcanic eruptions. This surprising connection has recently been discovered by a German-British research team led by Dr. Danilo Di Genova from the Bavarian Research Institute of Experimental Geochemistry & Geophysics (BGI) at the University of Bayreuth. (2020-09-24)

Bristol scientists shine light on tiny crystals behind unexpected violent eruptions
In a new study of volcanic processes, Bristol scientists have demonstrated the role nanolites play in the creation of violent eruptions at otherwise 'calm' and predictable volcanoes. The study, published in Science Advances, describes how nano-sized crystals (nanolites), 10,000 times smaller than the width of a human hair, can have a significant impact of the viscosity of erupting magma, resulting in previously unexplained and explosive eruptions. (2020-09-23)

Living in an anoxic world: Microbes using arsenic are a link to early life
Much of life on planet Earth today relies on oxygen to exist, but before oxygen was present on our blue planet, lifeforms likely used arsenic instead. These findings are detailed in research published today in Communications Earth and Environment. (2020-09-22)

Why there is no speed limit in the superfluid universe
Physicists from Lancaster University have established why objects moving through superfluid helium-3 lack a speed limit; exotic particles that stick to all surfaces in the superfluid. The discovery may guide applications in quantum technology, even quantum computing, where multiple research groups already aim to make use of these unusual particles. (2020-09-21)

Indian monsoon can be predicted better after volcanic eruptions
Large volcanic eruptions can help to forecast the monsoon over India - the seasonal rainfall that is key for the country's agriculture and thus for feeding one billion people. As erratic as they are, volcanic eruptions improve the predictability, an Indian-German research team finds. What seems to be a paradox is in fact due to a stronger coupling between the monsoon over large parts of South and South-East Asia and the El Niño phenomenon after an eruption. (2020-09-18)

Sea ice triggered the Little Ice Age, finds a new study
A new study finds a trigger for the Little Ice Age that cooled Europe from the 1300s through mid-1800s, and supports surprising model results suggesting that under the right conditions sudden climate changes can occur spontaneously, without external forcing. (2020-09-17)

Venus' ancient layered, folded rocks point to volcanic origin
An international team of researchers has found that some of the oldest terrain on Venus, known as tesserae, have layering that seems consistent with volcanic activity. The finding could provide insights into the enigmatic planet's geological history. (2020-09-17)

Discovery of a new mass extinction
It's not often a new mass extinction is identified; after all, such events were so devastating they really stand out in the fossil record. In a new paper, published today in Science Advances, an international team has identified a major extinction of life 233 million years ago that triggered the dinosaur takeover of the world. The crisis has been called the Carnian Pluvial Episode. (2020-09-16)

The Josep Carreras Institute identifies a marker of poor evolution in Hodgkin's lymphoma
Dr. Manel Esteller, director of the Josep Carreras Leukemia Research Institute, published today in Blood journal, the discovery of a marker that allows predicting which patient with Hodgkin's lymphoma will present the aggressive clinical course, and will therefore be a case of special risk. (2020-09-15)

When methane-eating microbes eat ammonia instead
As a side effect of their metabolism, microorganisms living on methane can also convert ammonia. In the process, they produce nitric oxide (NO), a central molecule in the global nitrogen cycle. Scientists from the Max Planck Institute for Marine Microbiology, Bremen (DE), and Radboud University, Nijmegen (NL), now discovered the enzyme that produces NO, closing an important gap in our understanding of how methanotrophs deal with rising environmental ammonia concentrations. (2020-09-13)

Rebirth of a volcano
Continued volcanic activity after the collapse of a volcano has not been documented in detail so far. Now and for the first time, researchers from the German Research Center for Geosciences GFZ and Russian volcanologists are presenting the results of a photogrammetric data series spanning seven decades for the Bezymianny volcano, Kamchatka, in the journal ''Nature Communications Earth and Environment''. (2020-09-10)

Volcanic ash may have a bigger impact on the climate than we thought
Volcanic ash shuts down air traffic and can sicken people. But a new study suggests that it may also be more important for Earth's climate than scientists once thought. (2020-09-10)

Mineral dust ingested with food leaves characteristic wear on herbivore teeth
In a controlled feeding study of guinea pigs, paleontologists have discovered that mineral dust ingested with food causes distinct signs of wear on the teeth of plant-eating vertebrates, which can differ considerably depending on the type of dust. (2020-08-25)

NASA's Terra Satellite shows smoky pall over most of California
More than 650 wildfires are blazing in California after unprecedented lightning strikes, storms, and a heatwave that has set new records in the state and NASA's Terra satellite captured the smoke-engulfed state on Aug. 24, 2020. (2020-08-24)

200 000 years ago, humans preferred to kip cozy
Researchers in South Africa's Border Cave have found evidence that people have been using grass bedding to create comfortable areas for sleeping and working on at least 200 000 years ago. (2020-08-14)

Oregon study rewrites the recent history of productive Cascade Arc volcanoes
Volcanic eruptions in the Cascade Range of the Pacific Northwest over the last 2.6 million years are more numerous and closely connected to subsurface signatures of currently active magma than commonly thought, according to newly publish research. (2020-08-14)

NASA's Aqua Satellite shows extent of Apple Fire's burn scar
On Aug. 9, 2020 NASA's Aqua satellite imaged the Apple Fire near Big Bear Lake in California using its false-color bands in order to be able to distinguish burn scars from the surrounding area more easily. (2020-08-10)

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