Killer Quake Slams Mindanao

A building being demolished with dust and debris in the air

A massive magnitude 7.8 earthquake struck the southern Philippines on Monday morning, triggering a tsunami, collapsing buildings, and killing at least 19 people — with CCTV footage capturing the terrifying moment the ground gave way.

Story Highlights

A magnitude 7.8 earthquake struck offshore near General Santos, Mindanao, on June 8, 2026, at approximately 7:37 a.m. local time.
At least 19 people were killed and more than 200 injured, with casualties largely caused by a landslide and building collapses.
A three-foot tsunami washed ashore in southern Philippine provinces, with tsunami alerts issued across Indonesia, Malaysia, and beyond.
Aftershocks up to magnitude 6.5 were recorded by the U.S. Geological Survey following the initial quake.

A Powerful Strike in Southern Mindanao

An offshore magnitude 7.8 earthquake rocked the southern Philippines early Monday, centered at sea approximately eight miles southwest of General Santos city in Mindanao. The quake, attributed to movement along the Cotabato Trench, struck during morning hours when many residents were already active — including students gathered for school flag ceremonies. Security camera footage captured dramatic scenes of buildings swaying, shelves collapsing, and people scrambling for cover across the region.

The U.S. Geological Survey confirmed the event and recorded aftershocks reaching up to magnitude 6.5 in the hours following the initial strike. Philippine seismological authorities reported the quake’s depth, though exact figures varied slightly between Philippine and U.S. agency estimates as data was refined. The tremor was felt across a wide swath of southern Mindanao and neighboring areas, sending residents fleeing into streets and open spaces.

Deaths, Injuries, and Structural Damage

The death toll climbed through the day as emergency crews reached affected areas. CBS News reported at least 19 people killed, with more than 200 others injured. A significant portion of casualties resulted from a landslide triggered by the quake’s force, along with building collapses. Small structures crumbled in several communities, and a key access bridge in the General Santos area sustained damage, complicating early relief efforts. A school building in Matanao, Davao del Sur, collapsed during a morning flag ceremony, adding to the grim toll.

Philippine authorities, including the Office of Civil Defense, moved quickly to assess damage and verify casualty reports across affected provinces. President Ferdinand Marcos Jr. urged residents in coastal areas to move immediately to higher ground as tsunami warnings were activated. The rapidly evolving casualty count — ranging from initial reports of four deaths to later confirmed figures of 19 or more — reflected the chaotic early-response environment typical of major disaster events, as field teams worked to reach remote and damaged communities.

Tsunami Alerts Span Multiple Nations

Waves measuring three feet were recorded along the Philippine provinces of Sultan Kudarat and Sarangani following the quake. A 2.7-foot tsunami was measured by a tide gauge off Indonesia’s Sulawesi island. Tsunami alerts were issued for the southern Philippines, northern Indonesia, and the Malaysian state of Sabah, prompting coastal evacuations across the region. CBS News reported that small tsunamis also reached as far as Palau, illustrating the broad geographic reach of the seismic event.

🇵🇭 Major M7.8 earthquake hits the southern Philippines

On Monday, June 8, 2026, at 7:37 a.m. local time, a major M7.8 earthquake struck the Celebes Sea near southern Mindanao. According to the USGS, the epicentre was located 26 km southwest of Cablalan, with a hypocentre at a… pic.twitter.com/PW0Q4CdJ8J

— Windy.com (@Windycom) June 8, 2026

The Pacific Tsunami Warning Center monitored wave activity throughout the morning and afternoon. By mid-afternoon, officials lifted the tsunami warning after determining the primary threat had largely passed. The multi-country alert system, involving Philippine, Indonesian, Malaysian, and Pacific basin warning authorities, demonstrated the cross-border coordination that large offshore earthquakes demand. While the warnings created a noisy and sometimes confusing information environment, the early alerts almost certainly reduced casualties in vulnerable coastal communities.