When will a supervolcano next erupt?

As of March 21, 2026, the Kalshi odds for When will a supervolcano next erupt? are: Before Jan 1, 2050: 29%. These probabilities are derived from real-money trading and update in real time.

When will a supervolcano next erupt? is currently available on Kalshi. Check PredictMarketCap for cross-platform availability as new markets are added regularly.

Prediction market odds reflect the aggregate opinion of traders who risk real money on outcomes. The price of a share (e.g., 65¢) represents the market's implied probability (65%). Prices move as traders buy and sell based on new information, polls, and analysis.