
A powerful earthquake with a magnitude of 6.4 struck Abra and nearby provinces late Tuesday night, Oct. 25, according to the Philippine Institute of Volcanology and Seismology (Phivolcs).
It was initially measured at magnitude 6.7 but was later revised to magnitude 6.4.
Phivolcs said the quake originated 7 kilometers (km) northeast of the municipality of Lagayan in Abra province at 10:59 p.m.
The earthquake was felt at Intensity VI (very strong) in La Paz, Abra and Banna, Batac City, Carasi, Dingras, Laoag City, and Sarrat in Ilocos Norte.
Moreover, it was felt at Intensity V (strong) in Bangued, Boliney, Bucay, Bucloc, Daguioman, Danglas, Dolores, Lacub, Lagangilang, Lagayan, Langiden, Licuan-Baay, Luba, Malibcong, Manabo, Peñarrubia, Pidigan, Pilar, Sallapadan, San Isidro, San Juan, San Quintin, Tayum, Tineg, Tubo, and Villaviciosa in Abra; Conner, Apayao; La Trinidad and Munkayan in Benguet; Rizal, Kalinga; Barlig, Bauko, Sabangan, Sadanga, Sagada, and Tadian in Mountain Province; Alilem, Banayoyo, Bantay, Burgos, Cabugao, City of Candon, Caoayan, Cervantes, Galimuyod, Gregorio del Pilar, Lidlidda, Magsingal, Nagbukel, Narvacan, Quirino, Salcedo, San Emilio, San Esteban, San Ildefonso, San Juan, San Vicente, Santa, Santa Catalina, Santa Cruz, Santa Lucia, Santa Maria, Santiago, Santo Domingo, Sigay, Sinait, Sugpon, Suyo, Tagudin, and City of Vigan in Ilocos Sur; Bacnotan, Balaoan, Bauang, Caba, City of San Fernando, and Suridpen in La Union; and Abulug, Allacapan, Amulung, Aparri, Baggao, Claveria, Lal-Lo, Lasam, Peñablanca, Tuao, and Tuguegarao City in Cagayan.
The tremor was “moderately strong” at Intensity IV in Flora and Santa Marcela in Apayao; Baguio City; Atok, Bokod, Buguias, Sablan, Tuba, Tublay, and Itogon in Benguet; Bontoc, Natonin, and Paracelis in Mountain Province; Bangar, San Juan, and Santol in La Union; and Buguey, Enrile, Iguig, Sanchez-Mira, Santa Praxedes, and Solana in Cagayan.
Meanwhile, it was felt at Intensity III (weak) in Calanasan, Apayao; Lagawe and Mayoyao in Ifugao; Laoac, City of Urdaneta, City of Dagupan, and Villasis in Pangasinan; Alicia, Isabela; Baler, Aurora; and Pura and Ramos in Tarlac.
It was “slightly felt” at Intensity II in Labrador, Pangasinan; San Manuel, Isabela; and Bamban, Camiling, and Paniqui in Tarlac.
Phivolcs’ instruments also recorded the tremor at Intensity V in Gonzaga, Peñablanca, and Claveria in Cagayan; Pasuquin and Laoag City in Ilocos Norte; and Vigan City in Ilocos Sur.
It was also recorded at Intensity IV in Bangued, Abra and Intensity III in Baler, Aurora and Ilagan, Isabela.
The earthquake was registered at Intensity II in Bayombong in Nueva Vizcaya, Urdaneta City and Dagupan City in Pangasinan, and Madella in Quirino.
It was also recorded at Intensity I in Dinalupihan, Bataan; Bulacan, Calumpit, Malolos City, and Plaridel in Bulacan; Pasig City; Navotas City; Cabanatuan City and San Jose in Nueva Ecija; Guagua, Pampanga; Umingan, Sison, Bolinao, Infanta, and Bani in Pangasinan; Polillo, Mauban, and Infanta in Quezon; Tanay and Taytay in Rizal; Ramos, Tarlac; and Iba, Zambales.
The earthquake was tectonic, which means it was caused by the movement of an active fault near the area.
Phivolcs advised the public to stay vigilant as aftershocks may occur.
However, it said that there is no tsunami threat to the country following the strong earthquake in Abra.