Given the task definition and input, reply with output. Given a sentence in the Japanese, provide an equivalent translation in Bahasa Indonesia that retains the same meaning through the translation. In translation, keep numbers as it is.

高さ１０kmの灰の雲が７４０×１８０kmの範囲に拡がった。
Awan abu yang 10 km tinggi akan megembangkan lebih dari 740 area sampai 180 km.