This August 5, 2016 article detailing a recent Oregon State University Cascadia Subduction Zone study further supports the not-if-but-when theory about a massive earthquake hitting our area within the next 50 years.
Here’s a snippet:
The newest data, however, have changed the stakes for the northern sections of the zone, which could have implications for major population centers such as Portland, Tacoma, Seattle and Vancouver, B.C.
A section of the zone from Newport to Astoria, Oregon, was previously believed to rupture on average about every 400-500 years, and that average has now been reduced to 350 years. A section further north from Astoria to Vancouver Island was previously believed to rupture about every 500-530 years, and that average has now been reduced to 430 years.
Read the full article here: Subduction zone earthquakes off Oregon, Washington more frequent than previous estimates