A new study led by McGill University has found that tectonic plates beneath the Earth's surface can show varying degrees of roughness and could help explain why certain earthquakes are stronger than others.
Earth Sciences
Apr 24, 2020
0
1005
Earthquakes produce seismic waves with a range of frequencies, from the long, rolling motions that make skyscrapers sway, to the jerky, high-frequency vibrations that cause tremendous damage to houses and other smaller structures. ...
Earth Sciences
Mar 3, 2020
0
261
Devastating historical earthquakes and tsunamis in Indonesia can be traced to a recently discovered submarine extensional fault system, where sediment slumping along the fault zone triggers the tsunamis, according to a study ...
Earth Sciences
Mar 3, 2020
0
6
In the aftermath of the devastating Tohoku-Oki earthquake that struck off the coast of Japan in March 2011, seismologists were stunned by the unprecedented 50 meters of shallow displacement along the fault, which ruptured ...
Earth Sciences
Jan 27, 2020
0
234
Earthquakes are sudden and their shaking can be devastating. But about 20 years ago, a new type of earthquake was discovered. We cannot feel them, and geologists still know very little about them, such as how often they occur.
Earth Sciences
Dec 10, 2019
0
237
A new study from Caltech finds that so-called "slow slip" or "silent" earthquakes behave more like regular earthquakes than previously thought. The discovery opens the door for geoscientists to use these frequent and nondestructive ...
Earth Sciences
Oct 23, 2019
1
419
On 22 May 1766, an earthquake of approximately 7.5 magnitude units and a subsequent water surge triggered a catastrophe in Istanbul, leaving behind collapsed houses, destroyed port facilities and thousands of victims. The ...
Earth Sciences
Jul 9, 2019
0
63
A new high-resolution map of a poorly known section of the northern San Andreas Fault reveals signs of the 1906 San Francisco earthquake, and may hold some clues as to how the fault could rupture in the future, according ...
Earth Sciences
Mar 27, 2019
1
7
Fault zones play a key role in shaping the deformation of the Earth's crust. All of these zones contain fluids, which heavily influence how earthquakes propagate. In an article published today in Nature Communications, Chiara ...
Earth Sciences
Mar 21, 2019
0
64
Over the last 540 million years, the Earth has weathered three major ice ages—periods during which global temperatures plummeted, producing extensive ice sheets and glaciers that have stretched beyond the polar caps.
Earth Sciences
Mar 14, 2019
11
2514
