A magnitude 6.7 earthquake that struck the Indonesian island of Sulawesi on Tuesday has claimed at least one life, injured dozens, and damaged hundreds of homes, reviving deep-seated fears in a region still scarred by the catastrophic 2018 disaster. The shallow tremor, centred just 10 kilometres beneath the surface and 42 kilometres southeast of the provincial capital Palu, sent panicked residents fleeing into the streets and forced the evacuation of patients from several hospitals, some still attached to intravenous drips. By evening, Indonesia’s National Disaster Management Agency (BNPB) confirmed a fatality in Sigi regency, with 32 people injured—eight seriously—and more than 100 displaced, though field teams warned the figures were certain to rise as assessments continued.

Seismologists in Jakarta and abroad quickly identified the culprit as the Sausu fault, a lesser-known but active structure distinct from the Palu-Koro fault that unleashed the magnitude 7.5 earthquake and subsequent liquefaction in 2018. The US Geological Survey and the European-Mediterranean Seismological Centre both registered the event at 6.7, while Indonesia’s Meteorology, Climatology and Geophysics Agency (BMKG) recorded more than 70 aftershocks, the largest reaching magnitude 5.2. Officials stressed there was no tsunami threat—the epicentre lay on land—but cautioned that liquefaction remained a possibility in sandy, water-saturated zones, though no such phenomenon had been reported by nightfall.

Viewed from the provincial government, the response was swift but complicated by the absence of Governor Anwar Hafid, who was in Jakarta on official business when the quake hit. He issued emergency instructions remotely and returned to Sulawesi the same evening, while his deputy toured the hardest-hit villages in Sigi. Search-and-rescue teams, police units, and disaster agencies erected field tents outside hospitals, closed the cracked Jembatan Palu III bridge, and began mapping damage that included the Bupati’s office in Sigi, the auditorium of Tadulako University, and at least 787 houses across five subdistricts. In Parigi Moutong, 15 homes were reported damaged, and landslides severed roads in mountainous areas.

On the ground, the psychological toll was immediate. Long queues snaked outside petrol stations as residents, haunted by memories of 2018, rushed to fill tanks and secure cooking gas. Pertamina, the state energy firm, insisted supplies were ample and distribution unaffected, but the panic buying underscored the fragility of public confidence. Telecommunications were disrupted at 29 base stations, though eight were restored within hours. The BNPB reported that 110 families—roughly 312 individuals—had been affected, with Sigi bearing the brunt. A newborn baby was among those evacuated from a district hospital, a stark image of vulnerability amid the chaos.

For analysts monitoring Indonesia’s disaster resilience, the episode highlights both progress and persistent risk. The relatively low casualty count compared with the 2018 catastrophe suggests that stricter building codes and improved early-warning protocols have had some effect. Yet the Sausu fault’s sudden activation serves as a reminder that Sulawesi’s seismic hazard is distributed across multiple fault lines, many of which remain poorly understood. As aftershocks continue to rattle the region, the government’s ability to maintain clear communication and prevent misinformation—particularly around tsunami and liquefaction rumours—will be critical in the days ahead. The challenge, as ever, is not merely geological but deeply human.