Subtle ripples moving through the Earth are something most people will never see, but a group of researchers spent years ...

Earthquakes that jiggle Earth's middle layer may be more widespread than scientists thought. A new map of these mysterious deep earthquakes shows that they occur all around the world and that they may ...

Add Yahoo as a preferred source to see more of our stories on Google. Stanford researchers mapped rare mantle earthquakes worldwide, revealing clusters near the Himalayas and the Bering Strait.