Sarangani Earthquake: 5.7-Magnitude Tremor Jolts Southern Philippines

A magnitude 5.7 earthquake struck off the coast of Sarangani province in the southern Philippines on April 16, 2025, at 5:42 a.m. local time. The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the epicenter was 55 kilometers southwest of Maitum, Sarangani, with a shallow depth of 1 kilometer.

Impact and Areas Affected

The tectonic earthquake was felt across several towns, with Intensity IV reported in Kiamba, T’Boli, Banga, Surallah, Tupi (South Cotabato), and Sarangani. Intensity III was recorded in Maitum, Glan, Malungon, Malapatan, and Alabel. Fortunately, no immediate casualties or significant damage have been reported.

Authorities Urge Vigilance as Aftershocks Are Expected

While the earthquake was moderate in magnitude, Sarangani’s proximity to seismic fault lines increases the likelihood of aftershocks. PHIVOLCS has advised residents to remain vigilant and follow earthquake safety protocols.

Local authorities are assessing infrastructure damage, including roads, bridges, and power lines. Emergency response teams have been deployed to ensure prompt assistance.

Seismic Activity in the Pacific Ring of Fire

The Philippines is part of the Pacific Ring of Fire, known for frequent seismic and volcanic activity. Earthquakes occur regularly, especially in the southern region, where tectonic movements are more active.

What Should You Do During an Earthquake?

PHIVOLCS has reiterated key earthquake safety tips:

• Drop, Cover, and Hold On – Seek shelter under sturdy furniture to protect yourself from falling debris.
• Stay Away from Windows and Heavy Objects – If indoors, avoid standing near glass surfaces or objects that could fall.
• Evacuate Safely – If outdoors, move to an open area away from buildings, trees, and power lines.
• Be Ready for Aftershocks – Additional tremors may follow, so stay alert and be prepared.

Local officials also emphasize preparedness, urging residents to have emergency kits and evacuation plans.

Ongoing Monitoring & Future Preparedness

Authorities continue to monitor the situation closely, with PHIVOLCS providing regular updates. While no tsunami warnings have been issued, officials stress the importance of preparedness in earthquake-prone regions like Sarangani.

As part of disaster readiness efforts, local governments are strengthening infrastructure and improving emergency response to mitigate the impact of future earthquakes. Information is provided while urging people to familiarize themselves with evacuation routes and emergency procedures. The recent earthquake serves as a reminder to stay prepared, especially in regions with high seismic risk like Sarangani.

Photo: USGS