The Office of Civil Defense (OCD) reported that no significant damage has been observed following a magnitude 4.6 earthquake that struck parts of Quezon and nearby provinces on Tuesday afternoon.

The quake, which occurred at 12:17 p.m. at a depth of 11 kilometers, was caused by a local fault in the Sierra Madre Range, according to the Philippine Institute of Volcanology and Seismology (PHIVOLCS). It is not related to the West Valley Fault.

Since the initial tremor, 19 aftershocks ranging from magnitude 1.4 to 3.6 have been recorded, with only one aftershock felt by residents.

OCD Calabarzon continues to monitor affected areas and has issued safety advisories via social media and information campaigns. Regional and local disaster risk reduction councils are conducting damage assessments but have so far reported no major effects in Central Luzon, Calabarzon, Mimaropa, and neighboring regions.

Several precautionary measures were implemented, including class suspensions at Our Lady of Fatima University campuses in Valenzuela and Quezon City and a work suspension in Calamba City. Public transportation in Metro Manila briefly halted but has since resumed, and many schools have reopened.

Dam operators in Central Luzon are monitoring major dams such as Angat, Ipo, Bustos, and Pantabangan with no reported damages. Similarly, no damage has been reported at Caliraya Dam in Calabarzon.

NDRRMC Chair Secretary Gilberto C. Teodoro Jr. emphasized the importance of readiness, instructing agencies to “stay alert, follow the ‘Duck, Cover, and Hold’ protocol, and prepare for possible evacuation.” He also reminded officials to ensure alarm systems are functional and policies for alarm system redundancy are enforced. “RDRRMCs and LDRRMCs are responsible for maintaining alarm system readiness and ensuring the timely dissemination of disaster information,” he added.

Authorities remain vigilant and urge the public to stay calm and adhere to official safety guidelines.