Tetrapods

My supposedly rugged camera turned out to be not 2 weeks of volunteering proof, and is now unusable. Thus a shiny new toy arrived on Friday evening and it passed the salty splash proof test on Saturday morning. Kamakura beach is presently almost as dirty as some of those up north, thanks I suppose to the typhoon a few weeks ago. Lots of rubbish and even whole trees have been washed up and half buried. Is it possible we are getting tsunami rubble? We shouldn't really get too much as, in terms of ocean currents, we are upstream of Tohoku, but perhaps it is possible - the ocean is a more complexly swirling place than our simple models pretend.