As the name suggests, an earthquake is an event that causes the earth to shake. In some cases, an earthquake can be so significant that it cracks open the ground, as well as human-made structures such ...

A new kind of earthquake has been detected in western Canada, one that shakes the ground slower and longer than typical seismic events. These earthquakes, recorded during hydraulic fracturing for oil ...

NORFOLK, Va. — Fault lines are fractures or breaks in the Earth's crust where tectonic plates move past each other, often resulting in earthquakes. These geological features are classified into three ...

A swarm of offshore earthquakes near the Pacific Northwest poses no threat to land, says Harold Tobin of the Pacific ...

Add Yahoo as a preferred source to see more of our stories on Google. A specific type of earthquake that can cause particularly intense shaking is more common than previously believed, some scientists ...

All 18 Sunday morning earthquakes remained in the 2-4 magnitude range, which is quite common over the course of a year.

Add Yahoo as a preferred source to see more of our stories on Google. Aftermath of the 1906 San Francisco earthquake, looking down California Street. (The Chronicle 1906) Scientists are warning that ...

Mexico sits on one of the most seismically restless patches of Earth. Squeezed between the Cocos, Pacific, and North American ...