Other parts of Indonesia, from Sumatra to Sulawesi, have also seen seasonal flooding, though it is most acute in the capital city, Jakarta. Five died in Sulawesi, while another 4 died in Semarang by flood electrocution. Yogyakarta is on high alert for lahars, as some 70 million cubic meters of volcanic material still cling to the slopes of Mount Merapi, and heavy rains could trigger an avalanche.