The tremor struck 33 kilometers northeast of Tulunan town, whichwas also the epicenter of the magnitude 6.6 quake on October 29 and a magnitude 6.3 temblor last Oct. 16.
PresidentRodrigo Duterte was in his hometown Davao City when the quake struck but he is safe.
Many houses and structuresin Mindanao were destroyed in the series of earth quakes.
The office of PresidentDuterte has instructed related agencies to provide the maximum possible supportto areas hit by the disasters.
The Philippine Instituteof Volcanology and Seismology (Phivolcs) advised locals to stay outside of houses and buildings for fear of strongaftershocks./.