The rarity of magnitude 8.0+ earthquakes, which occur globally at an average rate of roughly one per year according to long-term USGS records, underpins the 92% market-implied probability against a megaquake by June 30. Current seismic monitoring shows only typical activity levels through late May 2026, with several magnitude 6–7 events along subduction zones but no foreshock sequences, unusual strain accumulation, or aftershock clusters that would signal elevated short-term risk. Official USGS assessments emphasize that precise short-term predictions remain impossible, and climatological baselines for major fault systems like the Pacific Ring of Fire align with this low likelihood. While unexpected stress transfer from recent quakes or model revisions could theoretically raise odds, sustained quiet conditions through the resolution window support the strong trader consensus.