Complex sentence: According to Chahi, he was inspired by his trip in Mount Yasur's crater in Vanuatu in 1999, where the scenery and the power of the volcano, which was extremely active this time, fascinated and scared Chahi.
Split into simpler sentences: According to Chahi, he was inspired by his trip to Mount Yasur's crater in Vanuatu in 1999. The scenery and the power of the volcano, which was extremely active this time, fascinated and scared Chahi.