Interesting. Sudden drop in water
levels = run like hell to high ground. My parents house is in a Tsunami zone on an island about 14 miles up a coastal river (Oregon).
I’ve seen the inundation maps and am fairly certain no one still left on the island will survive the resulting tsunami from a local cascadia type earthquake.
Now given a couple hours warning I’d be inclined to head
out to sea if I thought I could get to deep water
in time. Then again maybe I’d just rather the insurance
company bought me another boat