**Multiple confirmed magnitude 6+ earthquakes on the central Mid-Atlantic Ridge have driven the 95% market-implied probability for a 6.1 or greater event as the largest quake of October 13, 2026.** USGS data recorded a 6.8 event at 12:23 UTC and a 6.7 at 05:44 UTC in this remote spreading zone, where plates diverge and produce frequent but typically low-impact quakes. These magnitudes exceed historical daily averages for global maxima and align with ongoing aftershock sequences from earlier Panama activity (including a 6.1 on October 12). Smaller events, such as a 5.3 near Papua New Guinea and various M4–5 quakes elsewhere, have not altered the ranking. The dominant outcome reflects verified instrumental recordings rather than forecasts, though final catalog revisions or undetected events could theoretically shift the precise maximum within the 6.1+ bin. No credible pathways exist for the largest quake to fall below 6.1 given the already observed events.