A magnitude 5.2 aftershock struck off the coast of Balut Island in the Municipality of Sarangani, Davao Occidental at 7:38 AM on Tuesday, June 9, 2026, according to a bulletin issued by the Philippine Institute of Volcanology and Seismology of the Department of Science and Technology (PHIVOLCS-DOST) at 8:09 AM the same morning.
Event Details
The earthquake was recorded at coordinates 5.24°N, 125.39°E, placing its epicenter approximately 20 kilometers south-southwest of Balut Island. It occurred at a shallow depth of 17 kilometers and has been classified as tectonic in origin. Its magnitude is reported as Ms 5.2 — a measurement based on surface wave readings.
This Is an Aftershock of the June 8 Mw7.8 Earthquake
PHIVOLCS-DOST has confirmed that this earthquake is an aftershock of the magnitude 7.8 earthquake that struck offshore Sarangani on June 8, 2026. Aftershocks are smaller earthquakes that follow a larger main event and occur in the same general area.
Where Was It Felt?
PHIVOLCS-DOST recorded instrumental intensities for this aftershock. Intensity I — the lowest level on the PHIVOLCS Earthquake Intensity Scale — was detected in the following areas:
- Malapatan, Sarangani
- Malungon, Sarangani
- General Santos City
At Intensity I on the PHIVOLCS Earthquake Intensity Scale, shaking is not perceptible to people and is only detectable by seismological instruments. No felt reports from residents were included in the bulletin.
Damage and Aftershock Assessment
PHIVOLCS-DOST does not expect damage from this magnitude 5.2 aftershock. However, the agency advises that more aftershocks are expected in the wake of the June 8 magnitude 7.8 main earthquake.
Stay Informed
PHIVOLCS-DOST advises the public to refer to the latest earthquake information posted on the agency's official website. Monitor official PHIVOLCS updates at phivolcs.dost.gov.ph.