Seismic arrays deployed in California's Long Beach and Seal Beach areas detected more than a thousand tiny earthquakes over eight months, many of them located at surprisingly shallow depths of less than two kilometers below ...
Earth Sciences
Apr 5, 2023
0
75
By combining models of magnitude 9 to 9.2 earthquakes on the Cascadia Subduction Zone with geological evidence of past coastal changes, researchers have a better idea of what kind of megathrust seismic activity was behind ...
Earth Sciences
Oct 29, 2019
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724
Geophysicists at Caltech have created a new method for determining earthquake hazards by measuring how fast energy is building up on faults in a specific region, and then comparing that to how much is being released through ...
Earth Sciences
Mar 5, 2019
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583
Stacked in gravity-defying arrangements in the western San Bernardino Mountains, granite boulders that should have been toppled long ago by earthquakes are maintaining a stubborn if precarious balance. In puzzling out why ...
Earth Sciences
Aug 4, 2015
1
91
Japan's seismologists were so entrenched in outdated beliefs about seismic hazard that they became blinkered to the risk of the March 11 mega-quake, a commentary in a top science journal charged on Wednesday.
Earth Sciences
Apr 13, 2011
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0
When the rigid plates that make up Earth's lithosphere brush against one another, they often form visible boundaries, known as faults, on the planet's surface. Strike-slip faults, such as the San Andreas Fault in California ...
Earth Sciences
Jan 18, 2023
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99
Today the drilling starts for a seismic monitoring network on the Marmara Sea near Istanbul. Specially designed seismic sensors in eight boreholes on the outskirts of Istanbul and around the eastern Marmara Sea will monitor ...
Earth Sciences
Sep 7, 2012
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0
When a damaging earthquake struck the area of L'Aquila in central Italy in 2009, it was the latest in the region's long history of strong and persistent quakes. The rich recorded history of settlement in the area, along with ...
Earth Sciences
Aug 3, 2012
0
0
A scientific team has discovered the geological footprint of earthquakes and tsunamis that affected the Aysén region (southern Chile) up to 9,000 years ago. This new study improves the assessment of seismic hazard in a wide ...
Earth Sciences
Mar 7, 2018
0
188
Why was an earthquake in Virginia felt at more than twice the distance than a similar-sized earthquake in California? The answer is one that many people may not realize. Earthquakes east of the Rocky Mountains can cause noticeable ...
Earth Sciences
Apr 25, 2018
0
28
