A magnitude 6.7 earthquake struck Palu, Central Sulawesi, Indonesia on Tuesday, June 16, 2026. The Indonesian Meteorology, Climatology, and Geophysics Agency (BMKG) has determined the quake was caused by activity along the Sausu Fault. This clarifies initial concerns that the earthquake originated from the historically significant Palu-Koro Fault. The Sausu Fault is a known, but less frequently active, geological structure in the region. This determination is important for understanding seismic risks and future preparedness efforts in Central Sulawesi. Authorities are continuing to monitor the area for aftershocks and assess any potential damage. The BMKG’s findings provide a more accurate understanding of the earthquake’s source and implications.