Good. That gives me time to put away the test equipment.
One minute before sea level change. Is this the sea level change where the water draws back from the shoreline, or the big crashing wave?
I guess I better install magnetic tsunami detectors in my Tennessee Possum Holler International Seaport.
I’ll need those after the artic ice shelf collapses and my seaport becomes operational.
Interesting... But you’d think the earthquake detection would itself provide even MORE warning time.