“Following up this article..A few tens of tones sardines washed up on fishing port in Chiba
10 thousand sardines were found dead on the beach in Minami shitaura machi Miura city Kanagawa as well. Public Interest Incorporated Foundation staff reported it to the city government around at 15:00 6/14/2012. Probably it’s been a few days since they were washed up.
From the result of simple water quality testing, nothing abnormal was found. Prefectural government is going to investigate more.
Staff talks there is a possibility that the sardines were chased after large predators from offshore, but a farmer near this area talks he hasn’t seen such a thing before.” Source – Fukushima Diary.