Is that a sign for another tsunami at Japan?

In March of 2011, Japan was face a very dangerous tsunami caused by the Great East Japan earthquake. It is considered the most powerful earthquake ever that hi the country, and it is recorded as the 4th most powerful earthquake in the world since 1900. It caused seven nuclear meltdowns, and killed  around 15,891 people. 6 days before that strong earthquake, 50 melon-headed whales beached themselves on shore.

Recently, 160 whales beached themselves in the same area. Is that a sign  from the whales? Do they know something that we don't?

The story in pictures 





The video