That is what a full blown tsunami looks like, based on watching many YouTube videos on the subject.
Bear in mind this is only a minute of footage. If the water keeps coming in like that for an hour it will eventually reach the person shooting this video.
The scary thing about tsunamis is that they look fairly innocent in the beginning. And five minutes later there’s ten feet of water moving very fast with houses and cars in it.
Here’s a good example of how it can go from looking harmless to terrifying in 25 minutes: https://youtu.be/P8qFi74k2UE
Edited to add:
On March 11, 2011, large parts of the city were destroyed by the tsunami which followed the Tōhoku earthquake. The island of Ōshima and its 3,000 residents, included in the city limits, was isolated by the tsunami which damaged the ferry connections.[7] After the tsunami, spilled fuel from the town's fishing fleet caught fire and burned for four days.[8] As of 22 April 2011, the city had confirmed 837 deaths with 1,196 missing.[9]
It's probably in a Jared Diamond book somewhere about shifting expectations depending on where you grow up, some people can't imagine that people live in a place where you can't hear the sea, because they only knew that.
I don't think I'd like to live right at the coast if I were in the Pacific.
But luckily it seems to be more of a slow eruption