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Tag: Earthquake

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...

A swarm of 85,000 earthquakes at the Antarctic Orca submarine volcano

Volcanoes can be found even off the coast of Antarctica. At the deep-sea volcano Orca, which has been inactive for a long time, a...

Earthquake fracture energy relates to how a quake stops

By examining earthquake models from a fresh perspective, Cornell University engineers now show that the earthquake fracture energy -- once thought to relate to...

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...

Big data imaging shows rock’s big role in channeling earthquakes in...

Thanks to 20 years of seismic data processed through one of the world's most powerful supercomputers, scientists have created the first complete, 3D visualization...

Hidden magnitude-8.2 earthquake source of mysterious 2021 global tsunami

Scientists have uncovered the source of a mysterious 2021 tsunami that sent waves around the globe. In August 2021, a magnitude 7.5 earthquake hit near...

Fiber-optic cables can produce high-resolution underground maps

How much the ground moves during an earthquake strongly depends on properties of rock and soil just beneath Earth's surface. Modeling studies suggest that...

Earthquake depth impacts potential tsunami threat

Earthquakes of similar magnitude can cause tsunamis of greatly varying sizes. This commonly observed, but not well-understood phenomenon has hindered reliable warnings of local...

Using sparse data to predict lab earthquakes

A machine-learning approach developed for sparse data reliably predicts fault slip in laboratory earthquakes and could be key to predicting fault slip and potentially...

Seismic shockwave pattern may be redirecting earthquake damage

New research from The University of Texas at Austin could change the way scientists think about potential damage from earthquakes. The study examined data from...

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...

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