The market's 91.5% probability against a megaquake by June 30 reflects the extreme rarity of magnitude 8 or greater events on any short timescale, according to long-term USGS seismic records. Current monitoring shows only typical background activity along major tectonic fault lines such as Cascadia and the Alaska-Aleutian subduction zone, with no detected foreshock swarms, unusual strain accumulation, or GPS anomalies that would indicate imminent rupture. Historical patterns confirm these quakes recur on multi-decade to century intervals rather than within weeks. Still, a sudden escalation in moderate seismicity or revised fault-slip data from ongoing USGS instruments could raise the odds if it signals rapid stress transfer before the resolution date.