Overview
- A magnitude 6.3 earthquake struck about 32 km southwest of Sarangani (Balut) Island on Wednesday, producing strong shaking felt across parts of southern Mindanao.
- Rapid agency estimates differed on depth with PHIVOLCS, GFZ and USGS reporting a shallow focus near 10–13 km while the Pacific Tsunami Warning Center and some USGS feeds gave a deeper estimate near 62 km.
- Seismological agencies issued no tsunami warning and PHIVOLCS said there was no destructive tsunami threat, while the USGS issued a Green alert indicating a low likelihood of fatalities or major economic loss.
- Eyewitnesses described scenes of panic as the quake struck during a government cash-distribution event on Sarangani Island, but initial field reports and media accounts recorded no confirmed casualties or major structural damage.
- The quake occurred in the same zone affected by the June 8 M7.8 that caused deaths, landslides and seabed uplift, and officials warned residents to expect continued aftershocks and to watch for secondary hazards such as landslides in vulnerable areas.