The quake struck in northern Luzon, the country's most populous island, at 8:43 a.m. local time (8:43 p.m. ET), according to USGS. The agency originally designated the quake 7.1-magnitude, before downgrading it to 7.0.
Its epicenter was about 13 kilometers (8 miles) southeast of the small town of Dolores, Abra province, with a depth of 10 kilometers (6.2 miles), according to USGS.
The earthquake's impact was felt in the capital city, Manila, more than 400 kilometers (about 250 miles) away, where workers and residents evacuated from buildings and gathered on the street.