In their final stage, tsunamis may descend on a section of coast as a breaking wave or as a wall of water called a bore, but more commonly, they appear as a fast - rising tidelike flood that surges well above the normal high - water mark.
في المرحلة النهائية ،‏ يمكن ان ينزل التسونامي على جزء من الساحل كموجة متكسرة او كحائط من ماء يُدعى موجة عالية .‏