<classify> Sikudawonongeke kwakukulu kapena kuvulala kumene kwamveka ku Tonga, koma magetsi anathima kwa nthawi yochepa, zimene zidanenedwa kuti zidakanikitsa akuluakulu ku Tonga kulandira chenjezo la tsunami kuchokera ku PTWC.  <topic>: Disasters and accidents 