Death toll reached more than 800 and are expected to rise sharply. Moreover, according to The Jakarta Post, the National Disaster Mitigation Agency(BNPB) estimates 71 foreign tourists have been affected by the earthquake and tsunami.
It is difficult for us to know whether Japanese are included in the number of tourists now. Ministry of foreign affairs of Japan just sent a message to H.E. Ms. Retno L.P. Marsudi, Minister for Foreign Affairs of the Republic of Indonesia on Sep 29, 2018.
Due to the landform, tsunami became strong. The mechanism is the same happened in Japan. It is said that the height was 6 meters. I think that when tsunami flew within the gulf, its height doubled.