Couple of weeks ago, I wrote about we folk living with the tsunami “Sword of Damocles” off our Pacific shores here on the far west edge of Oregon. A reader/friend accused me of making light of the daily threat and said – given the 9.0 Fukushima quake – there had to be major facts I was omitting.
He’s right. I did omit. I was “making light.” So, here’s tsunami redux – the “story-behind-the-story.”
Should we get hit with a 9-point shaker, it’ll likely be because the Cascadia Subduction Plate on the ocean floor about 50 miles out and the San Juan Plate from the north either collide or one suddenly moves atop the other. The same deadly results will probably occur either way. At the moment, Oregon State University geologists and others have evidence those plates may’ve already met and are locked. They believe that likely means pressure is building up which has no apparent means of escape short of a real blast when it can no longer be contained. Underwater seismograph evidence.
Which means, we could have a real “barn burner” of a blast – possibly that 9.0. Or more. And what would that mean?
Well, Oregon Department of Transportation (ODOT) surmises all bridges along the coast … ALL bridges … will fail! Further, most of the bridges for 50-70 miles inland between us and Interstate 5 – which runs north and south between Washington and California – will go, too. Hundreds of major landslides. Most – if not all roads from I-5 to the coast – would be impassable. ODOT believes we on the coast would be isolated for up to three years!
We coastal folk couldn’t go north or south. We couldn’t go inland, either. Again, ODOT predicting we’d be completely cut off for three years or so.
Want more? Bonneville Power estimates all coastal communities – from Astoria to Brookings – could be without power for three to five years before the electrical infrastructure could be rebuilt. How would that affect your daily lives?
More? Well, water, sewer and other necessary services would be destroyed within the first few minutes of a major quake. No public entity is willing to even hazzard a guess about how long it would take to replace all that, too.
So, yes, I was underplaying the effects of a tsunami a couple of weeks ago. Truth is, it would be Hell! But there’s one thing that keeps most coastal dwellers calm. Most – yes. MOST – don’t know what you do now. I’ve talked to many – in church – at service clubs – socially – and the projections from ODOT and Bonneville and other agencies don’t come up in the conversations. Even when you ask. Sort of “What-I-don’t-know-can’t-hurt-me,” I guess. Or, “Que Sara.” (more…)