For the first time, scientists have simulated the seismic signals that precede a volcanic eruption and created a 3-D visualization of those warning signs under controlled conditions. By performing tests on basalt rock from Sicily’s still-active volcano Mt. Etna, the team was able to record the seismic waves generated during the earthquakes that occur before volcanic eruptions.
"Nearly 500 million people live close enough to the planet’s 600 currently active volcanoes that they face serious harm, both physically and economically, should a major eruption occur. Being able to simulate the pressure conditions and events in volcanoes will greatly assist geophysicists in exploring the scientific basis for volcanic unrest. We cannot predict eruptions with total accuracy, but understanding these pre-eruption events better will help cities and towns near volcanoes know better whether they need to take the precaution of having people evacuate the area or not,” said Dr. Paul Young, Keck Chair of Seismology and Rock Mechanics as well as U of T’s Vice-President, Research.
Dr. Young noted that the information gathered through this investigation should also prove useful to other industries including mining and construction as well as to scientists studying other earth sciences phenomena
The international team of scientists involved in these ground-breaking experiments was Visiting Lassonde Institute Research Fellow, Dr. Philip Benson, who is also the Marie- Curie Research Fellow in Earth Sciences at University College London; Dr. Philip Meredith of the Rock and Ice Physics Laboratory, also from University College London; Dr.Sergio Vinciguerra of Rome’s National Geophysics and Volcano Institute; and Dr. Young. Their findings are published in a recent edition of the journal Science.For further information, please contact:
Abigail Leab Martin | Newswise Science News
NASA sees quick development of Hurricane Dora
27.06.2017 | NASA/Goddard Space Flight Center
Collapse of the European ice sheet caused chaos
27.06.2017 | CAGE - Center for Arctic Gas Hydrate, Climate and Environment
An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.
Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...
Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.
Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...
Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.
As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...
Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.
With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...
Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine
Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...
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