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Earth Sciences Jun 12, 2024

Study confirms the rotation of Earth's inner core has slowed

University of Southern California scientists have proven that the Earth's inner core is backtracking—slowing down—in relation to the planet's surface, as shown in new research published in Nature.

Earth Sciences May 29, 2019

Scientists find telling early moment that indicates a coming megaquake

Scientists combing through databases of earthquakes since the early 1990s have discovered a possible defining moment 10-15 seconds into an event that could signal a magnitude 7 or larger megaquake.

Earth Sciences Apr 11, 2023

Warm liquid spewing from Oregon seafloor comes from Cascadia fault, could offer clues to earthquake hazards

The field of plate tectonics is not that old, and scientists continue to learn the details of earthquake-producing geologic faults. The Cascadia Subduction Zone—the eerily quiet offshore fault that threatens to unleash ...

Earth Sciences Dec 27, 2019

Forces from Earth's spin may spark earthquakes and volcanic eruptions at Mount Etna

New research suggests forces pulling on Earth's surface as the planet spins may trigger earthquakes and eruptions at volcanoes.

Earth Sciences Oct 24, 2023

The first slow-slip events seen off southern Costa Rica

Slow-slip events (SSEs) are slow earthquake ruptures that generate just a few centimeters of slip over periods ranging from days to years. They are thought to occur in many of the world's subduction zones, but these subtle ...

Earth Sciences Apr 10, 2024

Seismologists suspect earthquake on San Andreas Fault is imminent despite odd attenuation parameters

A trio of seismologists affiliated with Istituto Nazionale di Geofisica e Vulcanologia, the Berkeley Seismological Laboratory, University of California, Berkeley reports that a part of the San Andreas Fault, at Parkfield, ...

General Physics Apr 29, 2024

Laser excitation of Th-229 nucleus: New findings suggest classical quantum physics and nuclear physics can be combined

Physicists have been hoping for this moment for a long time: For many years, scientists all around the world have been searching for a very specific state of thorium atomic nuclei that promises revolutionary technological ...

Earth Sciences May 23, 2019

Aftershocks of 1959 earthquake rocked Yellowstone in 2017-18

On Aug. 17, 1959, back when Dwight D. Eisenhower was president, the U.S. had yet to send a human to space and the nation's flag sported 49 stars, Yellowstone National Park shook violently for about 30 seconds. The shock was ...

Earth Sciences Feb 21, 2020

How earthquakes deform gravity

Lightning—one, two, three—and thunder. For centuries, people have estimated the distance of a thunderstorm from the time between lightning and thunder. The greater the time gap between the two signals, the further away ...

Earth Sciences Jun 7, 2024

Cascadia Subduction Zone, one of Earth's top hazards, comes into sharper focus

Off the coasts of southern British Columbia, Washington, Oregon and northern California lies a 600 mile-long strip where the Pacific Ocean floor is slowly diving eastward under North America. This area, called the Cascadia ...

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