The plume has already arrived and penetrated as far as Utah. A while back I was walking along the ocean and met a lady collecting what seemed to be Tsunami debris, Several empty water bottles and thongs with Japanese script. Whole wharfs and boats ran aground farther north. Will probably relocate in Boulder,CO area. The Rockies have a stopper effect with things from the West. Have lived there before and it is good.
The vid shows a guy with a Geiger counter at Pillar Point. As he gets to the sand, it starts to fire off danger warnings. Of interest, this is the place where the Mavericks big wave surf contest has been called for Friday. Big swells coming in with 40+ ft waves.. Went one time, but hard to see as the break is far offshore. CO