Quantcast
Channel: Phys.org news tagged with:subduction
Browsing all 82 articles
Browse latest View live

Deep mission: Japan takes aim at the source of megaquakes

Even in port, it's easy to see how the research vessel Chikyu got its nickname. From the waterline to the top of its drilling derrick, the vessel also known as "Godzilla-Maru" towers nearly 30 stories...

View Article



Japan ignores skeptics, keeps goal of earthquake prediction

In a nondescript government building near the Imperial Palace, a team of Japanese seismologists stands ready to predict an earthquake.

View Article

M 9.0+ possible for subduction zones along 'Ring of Fire,' study suggests

The magnitude of the 2011 Tohoku quake (M 9.0) caught many seismologists by surprise, prompting some to revisit the question of calculating the maximum magnitude earthquake possible for a particular...

View Article

A global surge of great earthquakes from 2004-2014 and implications for Cascadia

The last ten years have been a remarkable time for great earthquakes. Since December 2004 there have been no less than 18 quakes of Mw8.0 or greater – a rate of more than twice that seen from 1900 to...

View Article

Rising above the risk: America's first tsunami refuge

Washington's coast is so close to the seismically active Cascadia Subduction Zone that if a megathrust earthquake were to occur, a tsunami would hit the Washington shoreline in just 25 minutes.

View Article


Continental formation more complicated than previously understood

(Phys.org) —The way continents are formed can be far more complicated than previously understood, according to researchers at the University of Aberdeen.

View Article

Why Iceland formed so differently from the gentle early Earth

How do you take the temperature of the Earth billions of years ago? The answer lies in the rocks.

View Article

Seismic experiment in Alaska could shed light on slow earthquakes

An earthquake expert at the University of California, Riverside is leading a team of seismologists and volcanologists to conduct an experiment in Alaska that will record a variety of seismic events in...

View Article


Study outlines impact of tsunami on the Columbia River

Engineers at Oregon State University have completed one of the most precise evaluations yet done about the impact of a major tsunami event on the Columbia River, what forces are most important in...

View Article


Map outlines western Oregon landslide risks from a subduction zone earthquake

New landslide maps have been developed that will help the Oregon Department of Transportation determine which coastal roads and bridges in Oregon are most likely to be usable following a major...

View Article

More people could survive tsunami if they walk faster, study says

About 5,500 more people could survive a major tsunami hitting the Pacific Northwest if they just walk a little faster to higher ground after roads are knocked out, a new study shows.

View Article

Enhancing earthquake early warning in the Pacific Northwest

Earthquake Early Warning (EEW) systems depend on speed and accuracy in delivering seismic monitoring data to areas at risk from a quake or volcanic eruption. Paul Bodin of the University of Washington...

View Article

Tidal tugs on Teflon faults drive slow-slipping earthquakes

Unknown to most people, the Pacific Northwest experiences a magnitude-6.6 earthquake about once a year. The reason nobody notices is that the movement happens slowly and deep underground, in a part of...

View Article


Supercycles in subduction zones

When tectonic plates collide, they produce earthquakes like the recent one in Nepal. Researchers at ETH Zurich are providing new ways to explain how and why earthquake supercycles occur in zones where...

View Article

The origins and future of Lake Eyre and the Murray-Darling Basin

Geoscientists have, for the first time, discovered the origins of Australia's two largest basins: Lake Eyre and the Murray-Darling Basin. The research also implies that in 30 million years' time both...

View Article


Signs of ancient earthquakes may raise risks for New Zealand

Researchers have uncovered the first geologic evidence that New Zealand's southern Hikurangi margin can rupture during large earthquakes. The two earthquakes took place within the last 1000 years, and...

View Article

Earthquake preparations need to start now, expert advises federal officials

Developing the resilience to withstand a massive earthquake along the Pacific Northwest's Cascadia Subduction Zone is the responsibility of public agencies, private businesses and individuals, and that...

View Article


Understanding subduction zone earthquakes

The 26 December 2004 Mw ~9.2 Indian Ocean earthquake (also known as the Sumatra-Andaman or Aceh-Andaman earthquake), which generated massive, destructive tsunamis, especially along the Aceh coast of...

View Article

Northwest residents should channel fear of earthquake into pragmatic action

A national news article suggesting that everything in Oregon west of Interstate-5 "would be toast" in a major Cascadia Subduction Zone earthquake certainly drew attention to the seismic reality facing...

View Article

Piecing together the Pangea puzzle

Two hundred and fifty million years ago, all the major continents were joined together, forming a continent called Pangea (which means "all land" in Greek). The plate thickness of continents can now be...

View Article
Browsing all 82 articles
Browse latest View live




Latest Images