WEPA40 RJTD 200853 TSUNAMI WAVE BEGAN AT URAKAWA AT 0820Z - MUTSUOGAWARAKO AT 0833Z RISE HACHINOHEKO AT 0837Z RISE MIYAKO AT 0810Z RISE OFUNATO AT 0821Z RISE KAMAISHI AT 0819Z RISE KUJIKO AT 0826Z RISE JMA TOKYO.=