One thing that many people in the Pacific Northwest are holding their breath for is “The Big One” — the next recurrence of a massive earthquake in the Cascadia Subduction zone. This earthquake could be greater than a magnitude 8 and cause immense damage to cities like Portland, Seattle and Vancouver. This hypothetical earthquake could even potentially trigger a tsunami that will cross the Pacific Ocean just like a similar temblor in 1700 did when waves washed ashore in Japan. It is a serious threat that could happen next week … or in 200 years.
Sources of potential earthquakes in the Cascadia subduction zone. The Big One will be similar to the 1700 earthquake. USGS.
Sources of potential earthquakes in the Cascadia subduction zone. The Big One will be similar to the 1700 earthquake. USGS.
With all that being said, not all earthquakes in the Pacific Northwest are the same. ...
