A swimming pool inside a resort in the Philippines produced waves as a magnitude 6.6 earthquake hit parts of the Mindanao island on Tuesday (October 29).
Onlooker Kyle Villasis said he was on a vacation with family when it happened just after 9am local time.
He said: "We went outside during the quake and saw the water in the swimming pool producing waves, showing how strong it was."
Kyle said no one was hurt in the resort.
Local media reported that elsewhere in the region, a 15-year-old high-school student from Davao del Sur province was killed by a hollow blocks. One other person was killed and several others injured while more are missing.
The quake's epicentre was located inland northeast of Tulunan town in Cotabato province, 972km (604 miles) south of Manila, the Philippine Institute of Volcanology and Seismology said.
It stuck the town of Tulunan and other parts of Mindanao just two weeks after a strong quake hit the same area, killing several people and injuring dozens more.
