A magnitude 5.4 aftershock was recorded southeast of Balut Island, Sarangani, Davao Occidental at 5:34 a.m. on July 1, 2026, according to the Philippine Institute of Volcanology and Seismology (PHIVOLCS). This seismic event is classified as an aftershock of the Mw 7.8 earthquake that struck offshore Sarangani on June 8.
Continued Seismic Activity Raises Concerns
The aftershock was tectonic in origin and occurred at a depth of 10 kilometers.
PHIVOLCS
Residents in nearby areas reported feeling the tremor, with intensity IV noted in Kiamba, Sarangani, and intensity I in General Santos City.
- Intensity IV - Kiamba, Sarangani
- Intensity I - General Santos City
PHIVOLCS advised that while damages are anticipated, no further aftershocks are expected at this time. However, the region's recent seismic history—including the June 8 quake that affected thousands—has left communities on edge.