Question: How old is the currently active shield volcano located in the Kaʻ ū Desert?
Sentence (from "Kīlauea"): Structurally, Kīlauea has a large, fairly recently formed caldera at its summit and two active rift zones, one extending 125 km east and the other 35 km west, as an active fault of unknown depth moving vertically an average of 2 to per year.
Relevant evidence: No