A magnitude 5.6 earthquake struck 74 km ESE of Kokopo, Papua New Guinea, on September 26 at 14:08 GMT with a focal depth of approximately 58 km, establishing it as the day's largest event according to USGS and VolcanoDiscovery catalogs. No other quake that day exceeded this magnitude, with subsequent activity limited to events of 5.2 or below in regions including New Caledonia and Indonesia. Trader consensus at 100% for the 5.5–5.6 bin reflects this confirmed measurement and the absence of any larger seismic activity within the 24-hour window. A magnitude revision upward by monitoring agencies or discovery of an unreported event above 5.7 could still shift resolution, though current official data show no such indications.