A 6.0-magnitude earthquake rocked the southern Philippines on Wednesday, the US Geological Service said, with local authorities warning of aftershocks and possible damage.
The quake struck at 6:44pm (1044 GMT), near Monkayo municipality in Davao de Oro province on Mindanao island.
There were no immediate reports of major damage.
"It was quick and lasted for 15 to 20 seconds," said police Corporal Lucita Ambrocio, who is based in the nearby municipality of New Bataan
"After 10 minutes, our colleagues went back to the building," said Ambrocio, who raced outside with her colleagues when the police station started shaking.
"I checked the premises and I saw a small crack in the barracks."
Quakes are a daily occurrence in the Philippines, which sits along the Pacific "Ring of Fire", an arc of intense seismic as well as volcanic activity that stretches from Japan through Southeast Asia and across the Pacific basin.
The nation's civil defence office regularly holds drills simulating earthquake scenarios along active fault lines.