California sits on an active plate boundary where the Pacific and North American plates grind past each other, producing ...

Add Yahoo as a preferred source to see more of our stories on Google. Earth's crust is the planet's outermost layer. It is made of solid rock and sits on top of another layer, called the mantle. The ...

The Great Pyramid of Giza has stood for centuries despite harsh weather and powerful earthquakes, and a recent study may have ...

Boston residents said they have felt "whole buildings shake" after an earthquake hit the area this morning. The quake was reported Massachusetts at around 10.22am on Monday morning. It was centered ...