Xinhua reported citing the Philippine Institute of Volcanology and Seismology that the quake, which occurred at 11:35 a.m. local time, hit at a depth of 10 kilometers, about 22 kilometers northeast of Dalupiri, an island village in Calayan town.
The institute said the tectonic quake will trigger aftershocks but will not cause damage.
The archipelagic Philippines has frequent seismic activities due to its location along the Pacific "Ring of Fire."
AMK/PR