Category: Earth
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The magnitude of the 2023 Turkish earthquake matches the largest in the country’s history, according to new study
by KeAi Communications Co. Illustration of the seismic event, station distribution, and coda wave energy. Credit: Earthquake Science (2023). DOI: 10.1016/j.eqs.2023.02.008 On February 6, 2023, two powerful earthquakes successively occurred in Turkey, resulting in significant damage and loss of life across southeast Turkey and northwest Syria. As a fundamental parameter, their magnitudes are of great…
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Geoscientist discovers new phosphorus material after lightning strike
The New Port Richey fulgurite images and microscopy. a Glassy tubes that consist of a glassy melt surrounding an internal void, in turn surrounded by a crust consisting of cemented sand grains. The diameter of the fulgurite is 2 cm, and length is 7 cm. b Spherules of gray, metallic material within the fulgurite with diameters of…
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Hazards and Climate Impacts of Massive Underwater Eruptions
Studying bronze-age underwater volcanic eruptions is helping researchers better understand the size, hazards and climate impact of their parent eruptions, according to new research from the University of British Columbia. Credit: Johan Gilchrist, University of British Columbia Bronze-age underwater volcanic deposits are helping researchers understand the size, hazards, and climate impact of massive caldera-forming eruptions.…
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Study re-evaluates hazards and climate impacts of massive underwater volcanic eruptions
Studying bronze-age underwater volcanic eruptions is helping researchers better understand the size, hazards and climate impact of their parent eruptions, according to new research from the University of British Columbia. Credit: Johan Gilchrist, University of British Columbia Material left on the seafloor by bronze-age underwater volcanic eruptions is helping researchers better understand the size, hazards…
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Warm liquid spewing from Oregon seafloor comes from Cascadia fault, could offer clues to earthquake hazards
This sonar image of the Pythias Oasis site shows bubbles rising from the seafloor about two-thirds of a mile deep and 50 miles off Newport, Oregon. These bubbles are a byproduct of a unique site where warm, chemically distinct fluid gushes from the seafloor. Researchers believe this fluid comes directly from the Cascadia megathrust zone,…
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The Himalayas’ Vanishing Act: Underestimated Glacier Loss Unveiled
This image captured by the US Landsat mission features Galong Co lake. New research published in Nature Geoscience reveals that the ice loss from Himalayan glaciers flowing into lakes has been underestimated by an average of 6.5% between 2000 and 2020. This underestimation has critical implications for predicting the region’s glacier demise and managing water…
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Historic 1987 Edgecumbe earthquake photos contribute towards natural disaster resilience
Credit: By Archives New Zealand from New Zealand – Bay of Plenty Earthquake, 1987, CC BY-SA 2.0 Research using innovative techniques has revealed the 1987 Edgecumbe earthquake caused more land damage than initially thought, after comparing aerial photos of the landscape before and after the event. Ph.D. student Jaime Delano, from the University of Canterbury,…
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Drought-ravaged Colorado River gets relief from snow, but long-term water crisis remains
Credit: Pixabay/CC0 Public Domain Four months ago, the outlook for the Colorado River was so dire that federal projections showed imminent risks of reservoirs dropping to dangerously low levels. But after this winter’s major storms, the river’s depleted reservoirs are set to rise substantially with runoff from the largest snowpack in the watershed since 1997.…
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Lake water storage on Inner Tibetan Plateau increases under climate change, finds study
Lhanag-tso lake, with the high altitude of 4,574 meters. Credit: Wang Longhuan The Inner Tibetan Plateau is an endorheic basin with densely distributed lakes that serve as “sentinels” of climate change. With climate warming and humidification, the lakes on the Inner Tibetan Plateau have experienced a dramatic expansion. Thus, drainage reorganization events can occur, which…
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Ancient Volcanic Eruptions Unveil a Fiery Tale of Twin Mass Extinctions
An international team of researchers has found evidence suggesting that two mass extinctions, approximately 259 million and 262 million years ago during the Middle Permian Period, were caused by massive volcanic eruptions. The scientists studied uranium isotope profiles of marine samples collected in the South China Sea, which revealed two “pulses” where the oceans were…