A powerful 7.8-magnitude earthquake struck offshore near the southern coast of Mindanao in the Philippines early Monday morning, triggering mass evacuations, collapsing infrastructure, and setting off widespread tsunami warnings across the Asia-Pacific region, including Japan.
According to the Philippine Institute of Volcanology and Seismology (PHIVOLCS) and the U.S. Geological Survey (USGS), the massive undersea thrust earthquake struck at 7:37 AM local time, centered approximately 26 kilometers west-southwest of Kablalan, off the coast of Sarangani province. The severe shaking, which lasted for roughly 30 seconds, registered as the strongest seismic event to hit the country since 1990.
Casualties and Severe Urban Destruction
Disaster management officials have confirmed at least 15 fatalities and over 130 injuries, with seven individuals still reported missing.
The brunt of the structural destruction was felt in General Santos City, a major commercial and tuna-processing hub of over 700,000 people. Video footage verified by emergency responders showed the sudden, dramatic collapse of a upper floor of a three-story building housing a popular Jollibee fast-food restaurant, sending onlookers scrambling through thick clouds of dust. Multiple other commercial complexes, convenience stores, and a building at the Notre Dame of Dadiangas University suffered major damage or partial collapses.
The catastrophe struck on what was the highly anticipated first day of the new public school academic year. Panic broke out across dozens of school divisions during morning flag-raising ceremonies. In Davao City, part of a high school concrete footbridge collapsed, and more than 100 students across the region were treated for minor injuries or fainting spells induced by the trauma. Philippine President Ferdinand Marcos Jr. immediately ordered the indefinite suspension of classes in all affected zones, stating, “The safety of our children comes first.”
Tsunami Traverses the Pacific
The colossal energy released by the undersea fault lines immediately triggered localized tsunami waves. A 1.5-metre (4.9-foot) wave washed ashore along parts of the southern coast of Mindanao, including Davao City, prompting thousands of coastal residents to flee to higher ground.
Because the earthquake occurred at a depth capable of shifting massive amounts of seawater, the Pacific Tsunami Warning Center instantly issued alerts for surrounding nations.
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Indonesia & Malaysia: Tsunami waves between 0.3 to 1 meter high were detected along the coastlines of North Sulawesi and neighboring islands, causing minor injuries.
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Japan Coastline Under Advisory: In Tokyo, the Japan Meteorological Agency (JMA) issued a sweeping tsunami advisory for a massive stretch of its Pacific coastline, extending all the way from Ibaraki Prefecture in eastern Japan down to the southern island chain of Okinawa.
Residents along Japan’s coast were warned of potential 1-meter waves. The earliest disturbances were officially recorded arriving in Okinawa’s Miyakojima-Yaeyama region around mid-morning, with smaller sea changes later documented moving northward toward Chiba and Shizuoka prefectures.
Emergency Response and Aftershocks
Emergency utility crews are working tirelessly to restore fractured internet, water, and power grids across Mindanao. The international airport in General Santos was temporarily closed, forcing the cancellation of nearly a score of domestic flights to clear the runway for emergency assessments.
The region has already been hit by over 138 aftershocks, including a powerful magnitude 6.5 secondary tremor, keeping terrified residents away from damaged concrete homes. President Marcos Jr. assured the public that the national government’s emergency resources are fully deployed, adding, “We will not leave Mindanao behind.”