Global seismic activity has remained unusually quiet through mid-May 2026, with the last magnitude 6.5 or greater earthquake recorded in late March according to USGS data. This extended lull supports trader consensus favoring zero qualifying events during May 18–24, as worldwide catalogs show an average of only 15–20 such quakes annually, yielding a baseline rate of roughly one every three to four weeks. Current monitoring reveals no active aftershock sequences, subduction zone strain releases, or volcanic precursors that typically elevate short-term probabilities. Resolution will hinge on final USGS catalog verification of events meeting the exact magnitude threshold anywhere on Earth, with the market’s implied 50.5% chance for zero reflecting this absence of imminent triggers amid normal tectonic variability.