**A single 6.5-magnitude earthquake near Nikolski, Alaska, on September 17 stands as the only event meeting the 6.5+ threshold for the September 14–20 window, driving the market's overwhelming 96% consensus on exactly one occurrence.** USGS monitoring and global seismic networks recorded no additional qualifying quakes through September 20, including the 6.4 event in Papua New Guinea that fell just below the cutoff. This aligns with typical worldwide rates of roughly one to two magnitude 6.5+ events per week, though short-term clustering or quiet periods introduce natural variability. Late developments such as magnitude revisions, aftershocks crossing the threshold, or undetected events in remote regions remain the primary factors that could shift the final tally before resolution.