Here in Crescent City the wise mariners all take their boats to sea when there is a serious threat.
The last boat out in the last Tsunami went across the bar as the wave was coming across the bar too. They had a rough ride, but nothing they couldn't handle.
The boats offshore
only went far enough to get some elbow
room, certainly not past the 30 fathom mark, and rode
it out without knowing when the waves passed them.
In the inner basin the less intelligent mariners went through hell, and even the few boats saved are still badly damaged. It is a miracle that the handful of men
on their boats survived.
Not every boat will have someone near enough to take her to sea, and not every boat with an owner close enough to take her to sea will be taken to sea, but every boat taken to sea reduces the risk of damage to that it faces on every voyage.
To leave your boat at the dock
in the face of a timely Tsunami warning is lubberly.