At 19:53 local time on 10 August 2025, a magnitude 6.1 earthquake struck beneath the hills near Sındırgı, in Balıkesir province, western Türkiye, about 10 km from the town of Bigadiç. It was shallow, around 10 km deep, and the ground motion directly above it reached the top of the shaking scale, an instrumental MMI 9 (Violent), felt hundreds of kilometres away in İstanbul and İzmir and across the borders in Greece, Bulgaria and North Macedonia. Yet two people died, one an elderly man pulled alive from a collapsed building who did not survive, and around 52 were hurt; a three-storey apartment block came down in Sındırgı and 729 buildings were severely damaged (61 slightly), the great majority old, empty or already-condemned masonry rather than occupied modern housing.
That gap, top-of-scale local shaking against a single-figure death toll, is the whole story: almost 5,000 earthquakes since 1970 were larger, yet USGS's automated PAGER alert, calibrated on regional building vulnerability, modelled roughly 249 deaths, more than a hundred times the confirmed outcome. The sequence was not finished either; on 27 October 2025 a second, near-equal magnitude 6.0 shock struck the same fault system a few kilometres away, injuring a further and toppling buildings the August quake had already weakened. Residential cover in Türkiye runs through the compulsory scheme, re-based upward since Kahramanmaraş, but national take-up sits around , a gap this small event left untested but which the fast-growing İzmir-Manisa corridor, sitting on the same extensional belt, cannot afford to test.