A study reveals that the oldest continental crust on Earth is slowly being broken up by shifting tectonic forces.

It’s surprising to find remnants of a plate that we just didn’t know about at all,” Suzanna van de Lagemaat, the Utrecht University geologist whose work has reversed decades of conventional wisdom ...

Seismic traveltime tomography is commonly discretized by a truncated expansion of the pursued model in terms of chosen basis functions. Whether parametrization affects the actual resolving power of a ...

Far beneath the vast expanse of the Pacific Ocean, at depths ranging from 900 to 1200 kilometers, researchers have uncovered seismic anomalies that defy current understanding of Earth’s interior.

The Cascadia Subduction Zone looks a little different ... conducted an expedition at sea aboard a ship that is capable of "seismic reflection imaging," which allowed researchers to see what the ...

High-resolution seismic imaging and rock physics experiments reveal that the Campi Flegrei caldera consists of a fibrous caprock (1–2 km deep), an underlying steam-filled chamber (2–4 km), and ...

First, they assumed that seismic waves travel through the crust at the same speed regardless of their direction of propagation. This isotropic form of tomography gave them a first image of the ...

The Central Costa Rican Pacific margin is characterized by a high-seismicity rate, coincident with the subduction of rough-relief ocean floor and has generated earthquakes with magnitude up to seven ...

Get Instant Summarized Text (Gist) Tidal forces induce distinct diurnal, semi-diurnal, and monthly cycles in seismic wave velocity within fault fracture zones, correlating with periodic tidal strain.

The 1980 eruption cycle made Mount St. Helens one of the most famous volcanoes in the Cascades. But it is far from the only volcano in the range.