No casualties or damage reported from the earthquake, which struck deep off the coast of Davao Occidental province.
A magnitude-6.1 earthquake struck deep off the coast of the southern Philippines on Saturday, according to the United States Geological Survey.
The quake occurred at a depth of 101 kilometers (63 miles) and about 70 kilometers from the nearest areas of Davao Occidental province.
There were no immediate reports of casualties or damage.
Marlawin Fuentes, a provincial rescuer from Sarangani island, stated that while the shake was not particularly strong, it lasted for around five seconds and caused office furniture to move.
No tsunami alert was issued in relation to this earthquake.
The Philippines, situated on the Pacific 'Ring of Fire,' experiences frequent seismic activity due to its location along an arc of intense seismic zones stretching from Japan through Southeast Asia and across the Pacific basin.
While many quakes go undetected by humans as they are too weak, stronger and potentially destructive ones can occur randomly without any means of predicting their timing or location.