Traders price "No" at 72.5% for a qualifying natural disaster in 2026 because extreme thresholds—magnitude 9.0+ earthquakes or Volcanic Explosivity Index 6+ eruptions—remain statistically rare according to USGS and Smithsonian Institution baselines, with such events occurring only a few times per millennium or once per century on average. No activity meeting these criteria has been recorded in the first five months of 2026, and global seismic and volcanic monitoring networks continue to register only background levels. Long-term tectonic and magmatic processes carry inherent forecast uncertainty, yet current observational data from official agencies show no signs of escalation that would alter the market-implied odds ahead of ongoing surveillance updates.