Tsunami time frane
The tsunami would have came within about 15 minutes after the main earthquake . I have extensive articles on what happens after a major quake. No one on low lying land would have lived. All major roads would have been blocked by debris, making it nearly impossible to get to a main highway out of the way of all the water.
They depicted the tsunami happening hours after the main quake (not to mention the dozens if other tremors). Not bet realistic. It would not have been that difficult to figure this out prior to filming.