**Multiple magnitude 6.7–6.8 earthquakes struck the central Mid-Atlantic Ridge on October 13, 2026, according to USGS records, driving the 98.5% market-implied probability for a largest event of 6.1 or greater.** These mid-ocean ridge events, where plates diverge, align with typical tectonic behavior and rank among the day’s strongest globally. Ongoing aftershocks from the October 9 magnitude 7.7 Panama quake added several 5–6 range events, but none surpassed the Atlantic Ridge pair. USGS significant earthquake listings and real-time catalogs confirm these magnitudes with standard seismometer networks; final reviewed values carry minor revision risk, though downward shifts below 6.1 remain improbable given the data. New model runs or additional station data could refine depths or exact values, but current observations strongly support the dominant outcome.