My local Atlantic coast news makes it sound like a tsunami story, they haven’t known how severe it would be. I suppose that this is an earthquake story in Japan, that’s the difference between world news and local news I suppose. I suppose that the tsunami has hit the USA mainland by now and the waves are passing, assuming no more earthquakes.
I saw some HI local news from Honolulu (Maui island, Hawai’i News Now), they seem to be getting back to they homes, but I haven’t heard about Kauaʻi island (NW) which had the worst warnings.
I hear 80,000 missing in one Japan city, a bullet train and a cruise ship with 100 people on it is missing. 
BTW, the Pacific coast is on the global scale, reaching from Japan, to Australia, to Chile, to the USA, and beyond. That’s the big story, the world news. The broad-minded view-point.