7.8 magnitude Mindanao earthquake not 'The Big One' – PHIVOLCS

The Philippine Institute of Volcanology and Seismology (PHIVOLCS) clarified that the 7.8-magnitude earthquake generated by the Cotabato Trench that recently rattled Mindanao cannot be considered 'The Big One,' as it does not represent the maximum possible earthquake the trench can produce, according to a report by BusinessWorld.

The term 'The Big One' is reserved for the strongest possible earthquake in a specific fault or trench. PHIVOLCS emphasized that while the recent tremor was powerful, it falls short of the worst-case scenario expected from the Cotabato Trench. The agency continues to monitor seismic activity in the region.

The earthquake struck Mindanao on June 11, 2026, prompting concerns among residents and officials. PHIVOLCS reminded the public to remain vigilant and prepared for potential stronger quakes, as the Cotabato Trench remains capable of generating a more powerful event.