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Earth Sciences May 4, 2022

Major 2020 Alaska quake triggered neighboring 2021 temblor

A study of two powerful earthquakes in adjacent areas off the Alaska Peninsula in 2020 and 2021 shows a connection between the two. It also suggests they may be a part of an 80-year rupture cascade along the fault.

Earth Sciences Apr 18, 2022

Neural network model helps predict site-specific impacts of earthquakes

In disaster mitigation planning for future large earthquakes, seismic ground motion predictions are a crucial part of early warning systems and seismic hazard mapping. The way the ground moves depends on how the soil layers ...

Materials Science Apr 14, 2022

Smallest earthquakes ever detected in micron-scale metals

On the micrometer scale deformation properties of metals change profoundly: The smooth and continuous behavior of bulk materials often becomes jerky due to random strain bursts of various sizes. The reason for this phenomenon ...

Earth Sciences Apr 7, 2022

Collaboration helps geophysicists better understand severe earthquake-tsunami risks

For nearly a decade, researchers at the Ludwig-Maximilians-Universität (LMU) München and the Technical University of Munich (TUM) have fostered a healthy collaboration between geophysicists and computer scientists to try ...

Earth Sciences Apr 7, 2022

Megathrust earthquake and tsunami 3,800 years ago kept hunter-gathers in Chile inland for 1,000 years

An international team of researchers has found evidence of a megathrust earthquake occurring approximately 3,800 years ago off the coast of what is now Chile. In their paper published in the journal Science Advances, the ...

Earth Sciences Mar 24, 2022

Undersea sediment reveals clues about seismic activity

Earthquakes are famously impossible to predict, and have been the cause of some of the most devastating events in human history. But could we learn more about these natural disasters by tracking them backwards through time?

Environment Mar 3, 2022

Experts: Central U.S. needs to be ready for next earthquake

Experts have warned for decades that a large swath of the central U.S. is at high risk for a devastating earthquake. They know that overcoming complacency is among their biggest hurdles.

Earth Sciences Feb 28, 2022

A slow-motion section of the San Andreas fault may not be so harmless after all

Most people have heard about the San Andreas Fault. It's the 800-mile-long monster that cleaves California from south to north, as two tectonic plates slowly grind against each other, threatening to produce big earthquakes.

Earth Sciences Feb 25, 2022

New model may improve Bay Area seismic hazard maps

The Santa Cruz Mountains define the geography of the Bay Area south of San Francisco, protecting the peninsula from the Pacific Ocean's cold marine layer and forming the region's notorious microclimates. The range also represents ...

Earth Sciences Feb 24, 2022

Ridgecrest shows how earthquakes damage Earth's crust

In July 2019, a series of earthquakes including two major shocks of magnitude 6.4 and 7.1 a day apart struck near Ridgecrest, CA, between Los Angeles and Las Vegas. For local residents, it was a violent interruption to the ...

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