The Office of Civil Defense (OCD) reported no significant damage following the magnitude 4.6 earthquake that struck Quezon province and parts of Luzon, including Metro Manila, on Tuesday afternoon.
According to the Philippine Institute of Volcanology and Seismology (PHIVOLCS), the earthquake was triggered by a local fault within the Sierra Madre range and was not connected to the West Valley Fault, with at least 19 recorded aftershocks.
Dam operators in Central Luzon—including Angat, Ipo, Bustos, and Pantabangan dams—conducted inspections and confirmed no damage, while the Caliraya Dam also remained unaffected.
In the CALABARZON region, no structural damage was reported in General Nakar, Quezon, and nearby provinces, with local governments quickly enforcing preventive measures such as class suspensions at Our Lady of Fatima University campuses in Valenzuela and Quezon City, and work suspensions in Calamba City.
Public transportation operations in Metro Manila have since returned to normal after experiencing brief interruptions, and several schools and universities have resumed classes.
The National Disaster Risk Reduction and Management Council (NDRRMC) convened an online meeting with regional offices from NCR, Central Luzon, CALABARZON, and MIMAROPA to ensure coordinated response efforts.
Local disaster councils in Aurora, Quezon, and surrounding provinces continue to conduct thorough damage assessments.
Defense Secretary and NDRRMC Chair Gilberto Teodoro Jr. ordered immediate communication between central and regional offices within 30 minutes of the incident.
He also instructed agencies to maintain preparedness, reinforce adherence to the “duck, cover, and hold” protocol, and ensure readiness for potential evacuations.
Teodoro emphasized the importance of functional alarm systems and the implementation of redundancy protocols to strengthen disaster response mechanisms.