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Tag: Earthquake

Researchers identify new source for earthquakes and tsunamis in the Greater...

Researchers have discovered geologic evidence that unusually large earthquakes and tsunamis from the Tokyo region -- located near tectonic plate boundaries that are recognized...

Continuous activity of small earthquakes makes mountains grow

From a human perspective, earthquakes are natural disasters—in the past hundred years, they have caused more than 200,000 deaths and enormous economic damage. Mega-earthquakes...

Rock crystals from the deep give microscopic clues to earthquake ground...

Microscopic imperfections in rock crystals deep beneath Earth's surface play a deciding factor in how the ground slowly moves and resets in the aftermath...

Previously unrecognized tsunami hazard identified in coastal cities

A new study found overlooked tsunami hazards related to undersea, near-shore strike-slip faults, especially for coastal cities adjacent to faults that traverse inland bays....

Earthquake, tsunami hazards from subduction zones might be higher than current...

Two of the most destructive forces of nature -- earthquakes and tsunamis -- might actually be more of a threat than current estimates according...

Local impacts from fracking the Eagle Ford

Hydraulic fracturing to extract trapped fossil fuels can trigger earthquakes. Most are so small or far from homes and infrastructure that they may go...

3D printed models provide clearer understanding of ground motion

It seems like a smooth slab of stainless steel, but look a little closer, and you'll see a simplified cross-section of the Los Angeles...

Study reveals the workings of nature’s own earthquake blocker

A new study finds a naturally occurring "earthquake gate" that decides which earthquakes are allowed to grow into magnitude 8 or greater. Sometimes, the "gate"...

Melting glaciers contribute to Alaska earthquakes

In 1958, a magnitude 7.8 earthquake triggered a rockslide into Southeast Alaska's Lituya Bay, creating a tsunami that ran 1,700 feet up a mountainside...

Unusual earthquakes highlight central Utah volcanoes

If you drive south through central Utah on Interstate 15 and look west somewhere around Fillmore, you'll see smooth hills and fields of black...

Making sense of commotion under the ocean to locate tremors near...

Researchers from Japan and Indonesia have pioneered a new method for more accurately estimating the source of weak ground vibrations in areas where one...

Slow motion precursors give earthquakes the fast slip

At a glacier near the South Pole, earth scientists have found evidence of a quiet, slow-motion fault slip that triggers strong, fast-slip earthquakes many...

Deep, slow-slip action may direct largest earthquakes and their tsunamis

Megathrust earthquakes and subsequent tsunamis that originate in subduction zones like Cascadia -- Vancouver Island, Canada, to northern California -- are some of the...

New model reveals previously unrecognized complexity of oceanic earthquake zones

Researchers from the University of Tsukuba applied seismic data from around the world to build a model of the 2020 Caribbean earthquake. Oceanic transform...

New fault zone measurements could help us to understand subduction earthquakes

A research team from the University of Tsukuba has conducted detailed structural analyses of a fault zone located in central Japan, with the aim...

Unusually shallow earthquake ruptures in Chinese fracking field

An unusually shallow earthquake triggered by hydraulic fracturing in a Chinese shale gas field could change how experts view the risks of fracking for...

How earthquake swarms arise

Earthquakes can be abrupt bursts of home-crumbling, ground-buckling energy when slices of the planet's crust long held in place by friction suddenly slip and...

Superheated rocks deep underground help explain earthquake patterns

Rock-melting forces occurring much deeper in the Earth than previously understood appear to drive tremors along a notorious segment of California's San Andreas Fault,...

Deep underground forces explain quakes on San Andreas Fault

Rock-melting forces occurring much deeper in the Earth than previously understood appear to drive tremors along a notorious segment of California's San Andreas Fault,...

The Le Teil earthquake provides new insights on seismic risk in...

On 11 November 2019, a magnitude 5 earthquake occurred near the village of Le Teil in the Rhône River Valley in southern France producing...

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