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 ...

California's seismic risk is increasing with supershear earthquakes, which are faster and more destructive than typical ...

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 ...

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 ...

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 ...