OCCIDENTAL MINDORO / RankWire.AI / – On Friday morning, a magnitude 5.4 seismic event occurred near Occidental Mindoro, Philippines, causing tremors felt across parts of Luzon and Metro Manila. The Philippine Institute of Volcanology and Seismology, or PHIVOLCS, recorded the quake at 10:38 a.m. local time. The epicenter was located approximately 13 kilometers southwest of Mamburao, the provincial capital. With a depth of around 14 kilometers, the quake originated from tectonic activity.
Initially, officials listed the event as magnitude 5.8, but subsequent analysis revised the reading to 5.4. PHIVOLCS warned that aftershocks could occur following the main tremor. The agency’s preliminary assessment did not anticipate any significant damage. During late morning, residents across Mindoro experienced distinct shaking, while neighboring provinces registered weaker movements. The earthquake also impacted parts of the capital region, more than 100 kilometers away from the epicenter’s closest point.
Mamburao experienced Intensity 5 shaking, along with several communities in Oriental Mindoro. Calapan City, Naujan, Puerto Galera, San Teodoro, and Victoria all reported the same intensity. Taal in Batangas and the towns of Abra de Ilog and Sablayan in Occidental Mindoro experienced Intensity 4. Instruments registered Intensity 5 in Mamburao and Puerto Galera. The strongest ground movement was concentrated in Mindoro, where communities felt the most pronounced tremors.
Shaking spreads into Metro Manila
The seismic activity extended into Metro Manila and other northern provinces. Seismic measurements indicated Intensity 3 in Quezon City, Batangas City, Calapan City, and Victoria. Similarly, General Trias in Cavite and San Pedro in Laguna registered Intensity 3. Some Manila residents moved outdoors as a precaution during the shaking, but normal activities resumed once the tremor subsided. Authorities continued to assess conditions across affected areas.
Lower intensity readings appeared in communities surrounding the broader Luzon region. Parañaque City recorded Intensity 2, along with Santa Cruz in Laguna and Guinayangan in Quezon. Variations in seismic measurements resulted from differing ground motion levels across locations. Initial assessments indicated no significant structural damage. Monitoring persisted after the main earthquake, as authorities and seismic stations observed for any additional tremors near Occidental Mindoro.
Official magnitude update confirms 5.4 reading
Following expert review of the initial seismic data, the earthquake’s magnitude was confirmed at 5.4. The depth remained approximately 14 kilometers, with the epicenter southwest of Mamburao. Communities in Occidental and Oriental Mindoro experienced the strongest shaking. Weaker tremors were felt in Batangas, Cavite, Laguna, Quezon, and Metro Manila. The distribution of intensity readings indicates that a broad section of Luzon experienced the effects of this Friday morning quake.
The Philippines frequently experiences seismic activity due to multiple active tectonic boundaries surrounding and crossing the archipelago. National seismic stations track these events and update measurements as new data arrives. Friday’s quake near Occidental Mindoro caused widespread shaking without any confirmed major structural damage in initial assessments. Authorities remained vigilant for aftershocks following the event. The official magnitude was revised to 5.4, replacing the earlier stronger preliminary estimate.