The word Tsunami is not of English origin. It has originated from two Japanese morphemes. Tsu+nami. 'Tsu' means harbor and 'nami' means wave .So,It is neither from German nor from French. It is not of Hindi or any Indian language origin. It is from Japanese language . read more
A tsunami starts when two plates crash into one another .You can't see a tsunami in the ocean but you can see it when it starts to form near the beach. read more