According to Jun De Peralta, chief of the Philippine Institute of Volcanology and Seismology (Phivolcs) in Ilocos Sur, the mild quake occurred at 9:31 a.m. and was felt at Intensity 4 in Sinait, Ilocos Sur; Intensity 3.0 in Sto.
Segun ken ni Jun de Peralta, hepe ti Philippine Institute of Volcanology and Seismology (Phivolcs) in Ilocos Sur, agpigsa iti intensity 4 ti ginggined a narikna idi 9:31 a.m. a nagpaut iti 3 segundo iti Sinait, Ilocos Sur idinto nga intensity 3 iti Sto.