Rupture of the Cascadia subduction zone will spell the worst natural disaster

The Really Big One: The next rupture of the Cascadia subduction zone will spell the worst natural disaster in the history of the continent An earthquake will destroy a sizable portion of the coastal Northwest. The question is when. And keep in mind: The next full-margin rupture of the Cascadia subduction zone will spell the worst natural disaster in the history of the continent. Seismologists know that how long an earthquake lasts is a decent proxy for its magnitude. Read More http://strangesounds.org/2016/07/the-really-big-one-cascadia-worst-disaster-history-continent-video.html