Hourly water level records collected from tide gauges can be used to measure land uplift caused by episodic tremor and slip of slow earthquakes in the Cascadia Subduction Zone, according to a new report in the Bulletin of ...
Earth Sciences
Feb 15, 2019
0
90
Big earthquakes appear to follow a brief episode of "shallow mantle creep" and "seismic swarms," suggests new research at Oregon State University that offers an explanation for the foreshocks observed prior to large temblors.
Earth Sciences
Jan 22, 2019
0
294
A new study by The University of Texas at Austin has demonstrated a possible link between life on Earth and the movement of continents. The findings show that sediment, which is often comprised from pieces of dead organisms, ...
Earth Sciences
Nov 16, 2018
0
277
The earthquakes are so small and deep that someone standing in Seattle would never feel them. In fact, until the early 2000s, nobody knew they happened at all. Now, scientists at Rice University have unearthed details about ...
Earth Sciences
Oct 25, 2018
2
181
Last September's magnitude 8.2 Tehuantepec earthquake happened deep, rupturing both mantle and crust, on the landward side of major subduction zone in the Pacific Ocean off Mexico's far south coast.
Earth Sciences
Oct 25, 2018
0
195
Researchers have known for decades that deep earthquakes—those deeper than 60 kilometers, or about 37 miles below the Earth's surface—radiate seismic energy differently than those that originate closer to the surface. ...
Earth Sciences
Jul 30, 2018
0
89
With four years of data from 268 seismometers on the ocean floor and several hundred on land, researchers have found anomalies in the upper mantle below both ends of the Cascadia Subduction Zone. They may influence the location, ...
Earth Sciences
Jul 25, 2018
0
3462
New simulations of Earth's asthenosphere find that convective cycling and pressure-driven flow can sometimes cause the planet's most fluid layer of mantle to move even faster than the tectonic plates that ride atop it.
Earth Sciences
May 29, 2018
0
48
Under Mexico, where the Cocos Plate from the Pacific Ocean slides under the North American Plate, a bending line of hills, created when the seafloor first formed, sits atop a flattened area of subduction.
Earth Sciences
Mar 12, 2018
0
167
A team of researchers with the University of Ottawa has used teleseismic data from on- and off-shore sensors to learn more about the low-viscosity layer (LVL) present in a northern part of the Cascadia subduction zone. In ...
