A new model built in part by a University of Alberta geophysicist contradicts a long-held idea about how the southern and central central Rocky Mountains were formed.
Earth Sciences
Mar 20, 2019
1
116
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
In a new study, published in the journal Nature, an international team of scientists provide the first conclusive evidence directly linking deep Earth's water cycle and its expressions with magmatic productivity and earthquake ...
Earth Sciences
Jun 24, 2020
0
918
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
A study of two powerful earthquakes in adjacent areas off the Alaska Peninsula in 2020 and 2021 shows a connection between the two. It also suggests they may be a part of an 80-year rupture cascade along the fault.
Earth Sciences
May 4, 2022
0
265
Three major earthquakes seem to have occurred in northern Japan before it was hit in March 2011 by a massive quake and tsunami, researchers said Wednesday based on new evidence.
Earth Sciences
Apr 25, 2012
0
0
Off the coast of Washington, columns of bubbles rise from the seafloor, as if evidence of a sleeping dragon lying below. But these bubbles are methane that is squeezed out of sediment and rises up through the water. The locations ...
Earth Sciences
Mar 21, 2019
0
702
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 subduction zone earthquake that ...
Earth Sciences
Feb 27, 2015
0
77
Subduction zones, where a slab of oceanic plate is pushed beneath another tectonic plate down into the mantle, cause the world's largest and most destructive earthquakes. Reconstructing the geometry and stress conditions ...
Earth Sciences
Dec 27, 2021
2
111
Geologists from Brown University may have finally explained what triggers certain earthquakes that occur deep beneath the Earth's surface in subduction zones, regions where one tectonic plate slides beneath another.
Earth Sciences
Feb 3, 2016
0
41
