CITY OF SAN FERNANDO, Pampanga — A magnitude 5.0 tectonic earthquake struck near Cabangan, Zambales, at 5:32 PM on Saturday, 11 October, rattling parts of Central Luzon, Ilocos, and Cagayan Valley.
Despite widespread tremors, authorities confirmed no damage to infrastructure or injuries, attributing the minimal impact to the quake’s significant depth of 100 kilometers.
OCD Region III Director Armand Corpus emphasized the importance of sustained preparedness: “No damage does not mean complacency. This quake is a reminder that Central Luzon sits on active faults. Secure heavy objects, inspect homes for cracks, and rehearse evacuation plans.”
The quake’s epicenter, located 19 kilometers northeast of Cabangan, Zambales (15.26°N, 120.21°E), triggered weak shaking (Intensity III) in Cabangan and Iba, Zambales, according to the Philippine Institute of Volcanology and Seismology (PHIVOLCS). Scarcely perceptible tremors (Intensity II) were reported as far north as San Fernando City, La Union (Region I), and as far east as Guimba, Nueva Ecija, and Tarlac City.
PHIVOLCS reiterated that the tremor’s tectonic origin along the Manila Trench and its deep focus cushioned its impact. “Earthquakes of this depth rarely cause severe ground shaking,” the agency stated, though it warned of possible weak aftershocks.
In Cabangan, Zambales, some residents briefly evacuated homes as a precaution. “Nagulat kami sa yanig, pero mabilis din nawala. Sinigurado lang namin na ligtas ang mga anak,” said barangay worker Juan Santos in a Facebook post. Similar accounts flooded social media, with netizens in Botolan and Dagupan City sharing videos of swaying ceiling fans and rattling windows.
Local governments across affected areas, including Tarlac and Pangasinan, conducted rapid safety checks on bridges, schools, and hospitals. All structures were declared intact.
The swift inspections in Central Luzon contrasted with the severe impacts of recent quakes elsewhere in the country. Just days earlier, a magnitude 6.9 earthquake in Cebu (30 September) and a magnitude 7.4 temblor off Davao Oriental (10 October) claimed over 80 lives combined.
Corpus stressed the lesson for Zambales: “What spared us today—depth and preparation—might not save us tomorrow. When the next big one hits, drills and readiness will separate survival from tragedy.”