Monday’s early morning earthquake rattled a few nerves and had many Islanders thinking about the 'great' rattlers that have come and gone, as well as the 'big ones' looming ...

While the 1700 earthquake is the most studied, scientists have found evidence of eight to 10 other Cascadia quakes. These ...

The Pacific Northwest is at risk for a mega-earthquake because of the Cascadia Subduction ... One happening every few hundred years. It has been more than 300 years since the last Big One ...

The Cascadia ... earthquake any day now. The fault runs for 700 miles off the coasts of California, Oregon, and Washington. But surprisingly, no one knew about the fault line until 45 years ...

26, Boxing Day, marks the 20th year since ... to the Sumatra earthquake region. The last Cascadia earthquake was estimated to have a magnitude of 9.0 and occurred in January 1700, generating ...