The S wave shadow zone is the area of the Earth’s surface where S waves are not detected following an earthquake. This shadow zone has led geologists to a model of the Earth with a solid mantle ...

Seismic waves from earthquakes have always offered a window into Earth’s hidden interior. For decades, researchers believed ...

By tracking seismic waves from earthquakes that have passed ... emerged in unexpected places — a “shadow zone,” as Lehmann ...

no destructive waves materialized, according to officials. The quake serves as a reminder of the long-term seismic risks posed by the Cascadia Subduction Zone, a less-publicized but potentially ...

The study of seismic waves provides evidence for the internal ... Refractions between layers cause two shadow zones, where no P waves are detected – the size and positions of these shadow ...