10.0 or above earthquake before 2027?

Traders currently price "No" at 99% for "10.0 or above earthquake before 2027?". The market has traded $790K in total volume and resolves Dec 31, 2026. The near-certain 99.2% market-implied probability for "No" reflects the established scientific consensus that magnitude 10.0+ earthquakes are physically impossible on Earth. USGS analysis shows that moment magnitude scales with fault rupture length, and no known or plausible fault system is long enough to release the required energy—such an event would need a continuous rupture spanning much of the planet's circumference. The historical maximum remains the 9.5 magnitude Great Chilean earthquake of 1960 on a roughly 1,000-mile fault. With only months remaining until 2027 and no active monitoring data or model runs indicating conditions that could alter this limit, traders see negligible risk. While theoretical papers have explored extreme multi-fault scenarios as once-in-millennia events, these remain far outside observed seismology and would not resolve the market in the available window.

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