The associated flooding washed away many shrimp from coastal ponds and also entered Thu Bồn River, thus preventing its use as a source for irrigation for about  of rice paddy fields. Due to its unexpected change in course and ferocity, Chanchu caught dozens of ships off guard and damaged communications, sinking 17 ships and damaging several others. Initially, there were 400 fishermen missing, although there was conflicting information with regard to the number of ships and people affected, particularly with ships near Hainan or Taiwan.
The flooding caused by this event swept away many shrimp from coastal ponds and entered the Thu Bồn River, hindering its use as an irrigation source for approximately of rice paddy fields. Due to its sudden change in direction and intensity, Chanchu caught dozens of ships off guard and disrupted communications, sinking 17 ships and damaging several others. Initially, there were 400 fishermen missing, although conflicting information existed regarding the number of affected ships and people, especially those near Hainan or Taiwan.