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Current Volcanic Activity News and Events, Volcanic Activity News Articles.
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Noise produces volcanic seismicity, akin to a drumbeat
Volcanoes are chaotic systems. They are difficult to model because the geophysical and chemical parameters in volcanic eruptions exhibit high levels of uncertainty. Scientists from the Ural Federal University in Ekaterinburg have further extended an eruption model to the friction force at work between the volcanic plug and volcanic conduit surface. The results, published in EPJ B, provide evidence that volcanic activity can be induced by external noises that would not otherwise have been predicted by the model. (2015-05-11)

Researchers discover missing link in the evolution of complex cells
In a new study, published in Nature this week, a research team led from Uppsala University in Sweden presents the discovery of a new microbe that represents a missing link in the evolution of complex life. The study provides a new understanding of how, billions of years ago, the complex cell types that comprise plants, fungi, but also animals and humans, evolved from simple microbes. (2015-05-06)

Volcano Loki observed from Earth
Large Binocular Telescope shows a lava lake on Jupiter's moon Io. (2015-05-05)

India drift
MIT researchers explain mystery of India's rapid move toward Eurasia 80 million years ago. (2015-05-04)

Did dinosaur-killing asteroid trigger largest lava flows on Earth?
The theory that an asteroid impact killed off the dinosaurs 66 million years ago is well accepted, but one puzzle is why another global catastrophe -- the huge, million-year eruption of the Deccan Traps flood basalts in India -- occurred at the same time. Mark Richards and UC Berkeley geologists argue this is not a coincidence. The impact probably rang Earth like a bell, reigniting an underground magma plume and generating the largest lava flows on Earth. (2015-04-30)

Two new iguanid lizard species from the Laja Lagoon, Chile
A team of Chilean scientists discover two new species of iguanid lizards from the Laja Lagoon, Chile. The two new species are believed to have been long confused with other representatives of the elongatus-kriegi lizard complex, before recent morphological and genetic analysis diagnosed them as separate. The study was published in the 500th issue of the open-access journal ZooKeys. (2015-04-27)

Scientists see deeper Yellowstone magma
University of Utah seismologists discovered and made images of a reservoir of hot, partly molten rock 12 to 28 miles beneath the Yellowstone supervolcano, and it is 4.4 times larger than the shallower, long-known magma chamber. The hot rock in the newly discovered, deeper magma reservoir would fill the 1,000-cubic-mile Grand Canyon 11.2 times, while the previously known magma chamber would fill the Grand Canyon 2.5 times. (2015-04-23)

This week from AGU: Undersea eruptions, shale boom and ozone pollution, Titan's atmosphere
This week from AGU: articles on undersea eruptions, shale boom and ozone pollution, and Titan's atmosphere. (2015-04-22)

Magma intrusion is likely source of Colombia-Ecuador border quake swarms
The 'seismic crisis' around the region of the Chiles and Cerro Negro de Mayasquer volcanoes near the Colombia-Ecuador border is likely caused by intruding magma, according to a report by R. Corredor Torres of the Servicio Geológico Colombiano and colleagues presented at the annual meeting of the Seismological Society of America. (2015-04-22)

A 'cingular' strategy for attack and defense
Researchers at the RIKEN Brain Science Institute in Japan have pinpointed specific brain regions related to choosing strategies, specifically deciding to attack an opponent or defend one's position. (2015-04-20)

Greatest mass extinction driven by acidic oceans, study finds
Changes to the Earth's oceans, caused by extreme volcanic activity, triggered the greatest extinction of all time, a study suggests. (2015-04-09)

Working up a sweat -- it could save your life
Physical activity that makes you puff and sweat is key to avoiding an early death, a large Australian study of middle-aged and older adults has found. The researchers followed 204,542 people for more than six years, and compared those who engaged in only moderate activity (such as gentle swimming, social tennis, or household chores) with those who included at least some vigorous activity (such as jogging, aerobics or competitive tennis). (2015-04-06)

Multiple sclerosis patients could benefit from brain boost study
Multiple sclerosis patients could one day benefit from treatments that boost their brain function, a study suggests. (2015-04-06)

New evidence shows carbon's importance to ocean life's survival 252 million years ago
A new study led by UT Arlington Earth & Environmental Scientists shows for the first time how carbon offered a mode of survival for some ocean life after one of the greatest mass extinctions in the history of Earth. (2015-04-03)

Life for specialists: In the poisonous breath of sleeping volcanos
Researchers of the University Jena analyze the microbial community in volcanically active soils. In a mofette close to the Czech river Plesná in north-western Bohemia, the team around Dr. Kirsten Küsel found numerous organisms that were thriving in this environment which seems to be so hostile to life. The Jena scientist have just published their findings in the magazine of the International Society for Microbial Ecology. (2015-04-01)

Scientists discover elusive secret of how continents formed
An international research team, led by a Virginia Tech geoscientist, has revealed information about how continents were generated on Earth more than 2.5 billion years ago -- and how those processes have continued within the last 70 million years to profoundly affect the planet's life and climate. (2015-03-31)

Exercise largely absent from US medical school curriculum, study shows
Fewer than half of the physicians trained in the United States in 2013 received formal education or training on the subject, according to new research from Oregon State University. (2015-03-31)

Extent of moon's giant volcanic eruption is revealed
Scientists have produced a new map of the moon's most unusual volcano showing that its explosive eruption spread debris over an area much greater than previously thought. (2015-03-18)

Ras protein regulates circadian rhythm
Biochemists at the Ruhr-Universität Bochum have gained new insights into the generation and maintenance of circadian rhythms. They demonstrated that the Ras protein is important for setting the phase of such a circadian clock, as its activity determines the period length of the rhythm. Ras is also contributing to induce phase-shifts in circadian rhythms in response to external time cues such as light. The team published their results in the magazine Molecular Neurobiology. (2015-03-18)

Scientists fly kites on Earth to study Mars
An unconventional research method allows UA planetary scientists to develop digital terrain models -- think Google Earth on steroids -- of geologic features on Earth, revealing that some of the things we see on Mars and other planets may not be what they seem. (2015-03-14)

New Mercury surface composition maps illuminate the planet's history
Two new papers from members of the MESSENGER Science Team provide global-scale maps of Mercury's surface chemistry that reveal previously unrecognized geochemical terranes -- large regions that have compositions distinct from their surroundings. The presence of these large terranes has important implications for the history of the planet (2015-03-13)

Understanding of cell enzyme flipped on its head
Researchers from Manchester, working with scientists in California, have found that certain molecules long thought to promote cancer growth, in fact suppress tumors, suggesting that therapeutic approaches should aim to restore, rather than block, their activity. (2015-03-09)

'Ouch zone' in the brain identified
Activity in a brain area known as the dorsal posterior insula is directly related to the intensity of pain, an Oxford University brain imaging study people has found. These results could help detect pain in people with limited communication abilities. The research team now plans to verify these results by attempting to switch off this brain region in relevant patients suffering from intractable pain. (2015-03-09)

CU-Boulder researchers propose a novel mechanism to explain the region's high elevation
Researchers have proposed a new way to explain how the High Plains got so high. Water trapped deep below Earth's crust may have flooded the lower crust, creating buoyancy and lift. (2015-03-05)

Earliest known fossil of the genus Homo dates to 2.8 to 2.75 million years ago
The earliest known record of the genus Homo -- the human genus -- represented by a lower jaw with teeth, recently found in the Afar region of Ethiopia, dates to between 2.8 and 2.75 million years ago, according to an international team of geoscientists and anthropologists. They also dated other fossils to between 2.84 and 2.58 million years ago, which helped reconstruct the environment in which the individual lived. (2015-03-04)

Study identifies first-ever human population adaptation to toxic chemical, arsenic
High up in the high Andes mountains of Argentina, researchers have identified the first-ever evidence of a population uniquely adapted to tolerate the toxic chemical arsenic. (2015-03-03)

In hot and cold water: The private lives of 'Hoff' crabs revealed
Researchers at the University of Southampton have shed light on the private life of a new species of deep-sea crab, previously nicknamed the 'Hoff' crab because of its hairy chest. (2015-03-02)

New compound may lead to development of cheaper anti-cancer drugs
A new compound developed at the University of Toronto Scarborough could play an important role in developing cheaper anti-cancer drugs. (2015-02-25)

Does dark matter cause mass extinctions and geologic upheavals?
Research by New York University Biology Professor Michael Rampino concludes that Earth's infrequent but predictable path around and through our Galaxy's disc may have a direct and significant effect on geological and biological phenomena occurring on Earth. (2015-02-19)

Women active a few times weekly have lower risk of heart disease, stroke and blood clots
Middle-aged women physically active a few times per week have lower risks of heart disease, stroke and blood clots than inactive women. More frequent physical activity does not appear to lower the risks further. (2015-02-16)

Universal access to physical activity could save billions in health costs
A little more than half of family health teams in Ontario offer physical activity services such as classes or counselling to encourage exercise among patients, and new research finds that standardizing access could help reduce the $6.8-billion cost associated with a sedentary lifestyle. There is a link between a lack of physical activity and chronic conditions such as heart disease, diabetes and obesity. (2015-02-12)

Reduced rainfall in the northern tropics linked to industrial emissions, research suggests
Scientists have produced a rainfall record strongly suggesting that man-made industrial emissions have contributed to less rainfall in the northern tropics. (2015-02-09)

Floods created home of Europe's biggest waterfall, study shows
A massive canyon that is home to Europe's most powerful waterfall was created in a matter of days by extreme flooding, new research reveals. (2015-02-09)

Understanding the copper heart of volcanoes
Researchers at the University of Bristol have discovered the link between volcanism and the formation of copper ore. (2015-02-09)

Unseen volcanoes may play role in Earth's long-term climate
The intensity of volcanic activity at deeply submerged mid-ocean ridges waxes and wanes on a roughly 100,000-year cycle, according to a new study that might help explain poorly understood variations in Earth's climate that occur on approximately the same timetable. (2015-02-06)

Role of gravitational instabilities in volcanic ash deposition: Eyjafjallajökull
Volcanic ash poses a significant hazard for areas close to volcanoes and for aviation. For example, the 2010 eruption of Eyjafjallajökull, Iceland, clearly demonstrated that even small-to-moderate explosive eruptions, in particular if long-lasting, can paralyze entire sectors of societies, with significant, global-level, economic impacts. In this open-access Geology article, Irene Manzella and colleagues present the first quantitative description of the dynamics of gravitational instabilities and particle aggregation based on the May 4, 2010 eruption. (2015-02-03)

Physical activity as medicine among Family Health Teams: Study
To better understand the current use of physical activity as medicine among Family Health Teams in Ontario, researchers at the Department of Kinesiology at the University of Waterloo and the Centre for Family Medicine Family Health Team conducted an environmental scan of 102 FHTs. They published their findings today in the journal Applied Physiology, Nutrition, and Metabolism. (2015-02-02)

To speed up magma, add water
A three-dimensional seismic image of the mantle beneath the Lau Basin in the South Pacific published in Nature has an intriguing anomaly. The scientists saw the least magma where they expected to find the most. After considerable debate they concluded that magma with a high water content was flushed so rapidly that it wasn't showing up in the images. (2015-02-02)

Iceland rises as its glaciers melt from climate change
The Earth's crust under Iceland is rebounding as global warming melts the island's great ice caps. In south-central Iceland some sites are moving upward as much as 1.4 inches (35 mm) per year. The forthcoming paper is the first to show the current fast uplift of the Icelandic crust is a result of accelerated melting of the island's glaciers and coincides with the onset of warming that began about 30 years ago, the researchers said. (2015-01-29)

Nannofossils from El Hierro place the Canaries closer to Hawaii
Pieces of sediment from the Cretaceous period encased in lava floated to the surface with the underwater eruption of El Hierro in 2011, bringing scientists valuable data on the islands' ocean floor. The analysis of the materials matches the origin of the Canary Islands archipelago to the model of how Hawaii was formed and confirms that the oldest islands are found to the east and the youngest to the west. (2015-01-28)

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