USGS seismic monitoring recorded exactly one earthquake of magnitude 6.5 or greater worldwide between August 17 and 23, 2026, anchoring the near-certain market consensus on outcome “1.” Global catalogs show M6.5+ events occur several times per week on average, driven by tectonic plate boundaries such as the Sunda subduction zone and Andean margin; the isolated count reflects normal background seismicity without aftershock sequences or swarm activity pushing totals higher. Resolution hinges strictly on final USGS magnitudes and UTC timing within the seven-day window. A revised magnitude or newly confirmed event could shift the tally, though post-processing rarely alters initial 6.5+ classifications at this scale.