“That is something that’s never occurred and they been saying that for decades.”
That Cascadia Fault earthquake occurs on average every 300 years.
Last one was 316 years ago.
360 years ago when there were few inhabitants, no infrastructure etc. I’m referring to modern America, with big population centers, big league infrastructure, but with strict building codes etc. CA has had big events over the past 100 years and its stood up relatively well. Look at the low death rates compared to weather events.
So my comment, this is something that has never occurred, is correct, in regards to modern times U.S., i.e. with the epicenter under a major population center, getting a direct hit by some cataclysmic 9.1 class event. Fortunately I don’t think that’s happened in the U.S. But I am sure the potential for that happening somewhere is real. So there ya have it.