Environmental: General Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Geology Offbeat: Earth and Climate Offbeat: General
Published

Two epicenters led to Japan's violent Noto earthquake on New Year's Day      (via sciencedaily.com)     Original source 

The 7.5- magnitude earthquake beneath Japan's Noto Peninsula on Jan. 1, 2024, occurred when a 'dual-initiation mechanism' applied enough energy from two different locations to break through a fault barrier -- an area that locks two sides of a fault in place and absorbs the energy of fault movement, slowing it down or stopping it altogether.

Environmental: General Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Geography Geoscience: Geology
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Decoding mysterious seismic signals      (via sciencedaily.com)     Original source 

Geophysicists find link between seismic waves called PKP precursors and anomalies in Earth's mantle that are associated with hotspots associated with volcanism on the surface.

Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Geochemistry Geoscience: Geology
Published

Researchers unveil mysteries of ancient Earth      (via sciencedaily.com)     Original source 

A team of researchers has made strides in understanding the formation of massif-type anorthosites, enigmatic rocks that only formed during the middle part of Earth's history. These plagioclase-rich igneous rock formations, which can cover areas as large as 42,000 square kilometers and host titanium ore deposits, have puzzled scientists for decades due to conflicting theories about their origins.

Environmental: General Environmental: Water Geoscience: Earthquakes Geoscience: Environmental Issues Geoscience: Geography
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Greenland mega-tsunami led to week-long oscillating fjord wave      (via sciencedaily.com)     Original source 

In September 2023, a megatsunami in remote eastern Greenland sent seismic waves around the world, piquing the interest of the global research community. The event created a week-long oscillating wave in Dickson Fjord, according to a new report in The Seismic Record.

Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Geography Geoscience: Landslides
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Sichuan Province earthquake offers lessons for landslide prediction from GNSS observations      (via sciencedaily.com)     Original source 

Using data collected from a 2022 magnitude 6.8 earthquake in Luding County in China's Sichuan Province, researchers tested whether Global Navigation Satellite System (GNSS) observations could be used for rapid prediction of earthquake-triggered landslides.

Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Environmental Issues
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Study revisits Texas seismic activity occurring before 2017, confirming connection to wastewater injection      (via sciencedaily.com)     Original source 

A new study by seismologists reexamines earthquakes in the Permian Basin that occurred before 2017 against the real-time data collected from earthquakes taking place after 2020. Results confirm that the seismicity occurring from 2009-2017 was causally linked to the underground injection of wastewater that is a byproduct of oil and gas extraction.

Engineering: Robotics Research Environmental: General Geoscience: Earthquakes Geoscience: Environmental Issues Geoscience: Geography
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Towards smart cities: Predicting soil liquefaction risk using artificial intelligence      (via sciencedaily.com)     Original source 

Soil liquefaction that results in infrastructure damage has long been a point of contention for urban planners and engineers. Accurately predicting the soil liquefaction risk of a region could help overcome this challenge. Accordingly, researchers applied artificial intelligence to generate soil liquefaction risk maps, superseding already published risk maps.

Computer Science: Encryption Computer Science: General Computer Science: Quantum Computers Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
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Optical fibers fit for the age of quantum computing      (via sciencedaily.com)     Original source 

A new generation of specialty optical fibers has been developed by physicists to cope with the challenges of data transfer expected to arise in the future age of quantum computing.

Computer Science: Encryption
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Mass layoffs and data breaches could be connected      (via sciencedaily.com)     Original source 

A research team has been exploring how mass layoffs and data breaches could be connected. Their theory: since layoffs create conditions where disgruntled employees face added stress or job insecurity, they are more likely to engage in risky behaviors that heighten the company's vulnerability to data breaches.

Computer Science: Encryption Computer Science: General Offbeat: Computers and Math Offbeat: General
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Mechanical computer relies on kirigami cubes, not electronics      (via sciencedaily.com)     Original source 

Researchers have developed a kirigami-inspired mechanical computer that uses a complex structure of rigid, interconnected polymer cubes to store, retrieve and erase data without relying on electronic components. The system also includes a reversible feature that allows users to control when data editing is permitted and when data should be locked in place.

Environmental: General Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Geology Geoscience: Volcanoes
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Iceland's volcano eruptions may last decades      (via sciencedaily.com)     Original source 

Scientists predict from geochemical data that Iceland is entering a new volcanic era that will last for decades, possibly centuries. Under an hour's drive from the country's capital city, the ongoing eruptions pose considerable risks for economic disruption, and they leave evacuated communities uncertain of a possible return.

Environmental: Water Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Geography
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An earthquake changed the course of the Ganges: Could it happen again?      (via sciencedaily.com)     Original source 

A major earthquake 2,500 years ago caused one of the largest rivers on Earth to abruptly change course, according to a new study. The previously undocumented quake rerouted the main channel of the Ganges River in what is now densely populated Bangladesh, which remains vulnerable to big quakes.

Environmental: General Geoscience: Earthquakes
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Estimating the energy of past earthquakes from brecciation in a fault zone      (via sciencedaily.com)     Original source 

In the same way that the number of rings in a tree can tell us its age, the characteristics of rocks such as breccia can tell us about the history of a region. The breccia around Ichinokawa Mine (located in Ehime prefecture) are of particular interest, as the mine is located south of the Median Tectonic Line. Researchers uncovered how breccia can provide valuable evidence to estimate the energy of past earthquakes in the area.

Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Geography Geoscience: Geology Geoscience: Oceanography
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Cascadia Subduction Zone, one of Earth's top hazards, comes into sharper focus      (via sciencedaily.com)     Original source 

A new study has produced the first comprehensive survey of the many complex structures beneath the seafloor in the Cascadia Subduction Zone, off British Columbia, Washington, Oregon and California. It is providing scientists with key insights into how future disasters may unfold.

Geoscience: Earthquakes Geoscience: Geology
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Breaking ground: Could geometry offer a new explanation for why earthquakes happen?      (via sciencedaily.com)     Original source 

Researchers are adding a new wrinkle to a long-held belief about what causes earthquakes in the first place.