Question: Which landslide killed 18 people in New South Wales, Australia, on 30 July 1997 with only Stuart Diver surviving?
Sentence (from "1997 Thredbo landslide"): The Thredbo landslide was a catastrophic landslide that occurred at the village and ski resort of Thredbo, New South Wales, Australia, on 30 July 1997.
Relevant evidence: Yes