A MAGNITUDE 5.6 earthquake rocked Burgos town, Ilocos Norte on Monday at 10:56:17 a.m.
Of tectonic origin, the tremor had a depth of 15 kilometers recorded off the east of Burgos.
The Philippine Institute of Volcanology and Seismology (Phivolcs) said there was no expected damage but aftershocks may occur.
Initially, Phivolcs reported the quake at Bangui town and closer to the Luzon mainland.
Intensity 5 was felt in Adams, Bacarra, Badoc, Bangui, Banna, City of Batac, Burgos, Currimao, Dingras, Dumalneg, City of Laoag, Marcos, Paoay, Pasuquin, Pinili, Sarrat, and Vintar, Ilocos Norte; Bantay, Cabugao, Magsingal, San Ildefonso, San Juan, Santo Domingo, Sinait, and City of Vigan, Ilocos Sur, and Claveria, Cagayan.
Intensity 4 was recorded in Bangued, Dolores, La Paz, San Juan, San Quintin, Tubo, and Villaviciosa, Abra; Alilem, Banayoyo, Burgos, Caoayan, Cervantes, Galimuyod, Gregorio del Pilar, Lidlidda, Nagbukel, Narvacan, Quirino, Salcedo, San Emilio, San Esteban, San Vicente, Santa, Santa Catalina, Santa Maria, Sigay, Sugpon, and Suyo in Ilocos Sur.
Intensity 3 was experienced in Boliney, Bucay, Bucloc, Daguioman, Danglas, Lacub, Lagangilang, Lagayan, Licuan-Baay, Luba, Malibcong, Manabo, Peñarrubia, Pidigan, Pilar, Sallapadan, San Isidro, Tayum, and Tineg, Abra; City of Baguio, Baguio; Bauko, Bontoc, Sadanga, and Sagada, Mountain Province; Balaoan, Bangar, and Sudipen, La Union.
Intensity 2 was felt in Atok, Buguias, Kibungan, and Mankayan, Benguet; Aguinaldo, Kiangan, Lagawe, and Lamut, Ifugao; Natonin, Paracelis, and Sabangan, Mountain Province; Agoo, Aringay, Bacnotan, Bagulin, Bauang, Burgos, Caba, Naguilian, City of San Fernando, San Gabriel, San Juan, Santo Tomas, and Santol, La Union; Allacapan, Amulung, Aparri, Baggao, Ballesteros, and Lasam, Cagayan, while Pugo, Rosario and Tubao, La Union had intensity 1.