A magnitude 5.4 earthquake struck the Province of Aurora on May 23, according to the Philippine Institute of Volcanology and Seismology (PHIVOLCS).
PHIVOLCS said the earthquake struck at 10:10 am with the epicenter located in San Luis, Aurora.
PHIVOLCS initially reported at around 10:23 am that the earthquake was magnitude 5.1, but upgraded this to magnitude 5.4 in an updated bulletin released at 10:59 am.
The earthquake, which was tectonic in origin, had a depth of 7 kilometers and was felt in the following areas:
- Intensity VI - Baler, Aurora
- Intensity V - San Luis, Dipaculao, and Maria Aurora, Aurora
- Intensity IV - Casiguran and Dingalan, Aurora; Gabaldon, and Palayan City, Nueva Ecija
- Intensity III - Obando, Bulacan; Villasis, Pangasinan; Parañaque City; Antipolo City, Rizal
- Intensity II - Santo Domingo, Nueva Ecija; Malolos City, and Plaridel, Bulacan; Baguio City; Manila; Malabon City; Navotas City; Quezon City; Valenzuela City
- Intensity I - Gapan City, Nueva Ecija; Guinayangan, Quezon
- Intensity IV - Palayan City, Nueva Ecija
- Intensity III - San Ildefonso, Bulacan; Santiago City, Isabela
- Intensity II - Cabanatuan City and San Jose City, Nueva Ecija; Malolos City, Bulacan; City of Baguio; City of Navotas
- Intensity I - Guagua, Pampanga; Marikina City; Malabon City; Quezon City; Guinayangan and Mauban, Quezon; Iriga City, Camarines Sur; Dagupan City, Pangasinan
PHIVOLCS said aftershocks and damage were expected.