[7] The Philippine Institute of Volcanology and Seismology (PHIVOLCS) initially reported an earthquake of magnitude 5.7 striking at 17:11 PST with an epicenter two kilometers N 28° E of Castillejos, Zambales.

[3] Of the 18 reported dead, five died in the collapsed four-storey Chuzon Supermarket in the municipality of Porac, seven elsewhere in the town, two in Lubao, one in Angeles City, and one in San Marcelino, Zambales.

[9] State seismologists said that Zambales had been spared from the earthquake destruction, despite the location of the epicenter being there, although the reports of fatalities and the damage have yet to be received by the local authorities.

[13] In Central Luzon, 5 dams were damaged and in need of immediate repairs, with an estimated cost of 20 million pesos, according to the National Irrigation Administration (NIA).

[14] The site where the most casualties occurred during the earthquake was a branch of the Chuzon Supermarket in Porac, Pampanga which collapsed, killing five people.

Power outages were reported in the provinces of Bataan, La Union, Pampanga and Pangasinan,[21] as well as in parts of Quezon, Batangas, Camarines Sur and Sorsogon, but were later corrected.

[33] A crack on the girder was reported at the Line 2 Recto Station, but was found to have existed before the earthquake and was superficial, according to the Department of Transportation (DOTr).