Add Yahoo as a preferred source to see more of our stories on Google. Earthquake with tremor graphic A newly identified link between two notorious geologic zones suggests a major earthquake at one ...

Scientists are raising the alarm about a potential seismic catastrophe on the West Coast of North America. Recent studies suggest that a massive earthquake along the Cascadia megathrust fault, which ...

That expedition used Japan's ultra-advanced drilling ship Chikyū, and marked the first time scientists had ever drilled directly into the fault zone of a recent megathrust earthquake. They drilled ...

When the tectonic subduction zone beneath the Pacific Northwest moves, it does so in dramatic fashion. Not only is ground shaking from a magnitude 9+ earthquake incredibly destructive, the event ...

The Carrizo Plain in eastern San Luis Obispo County contains the most strikingly graphic portion of the San Andreas Fault. Sediment cores recovered from the Pacific seafloor suggest that megathrust ...