A damaged local town hall is seen in Mabini, Davao Del Sur, Philippines after a magnitude 6.6 earthquake struck Octiber 29, 2019 in this picture obtained from social media. An earthquake with a magnitude of 6.6 hit central Mindanao in the southern Philippines on Tuesday, shaking buildings and causing residents to rush from schools and offices. Jaypee Catalan via REUTERS

A damaged local town hall is seen in Mabini, Davao Del Sur, Philippines after a magnitude 6.6 earthquake struck Octiber 29, 2019 in this picture obtained from social media. The quake struck 26 km (16 miles) northeast of Tulunan, Cotabato at 9:04 am (0104 GMT), the Philippine Institute of Volcanology and Seismology (Phivolcs) said. Jaypee Catalan via REUTERS

A damaged local town hall is seen in Mabini, Davao Del Sur, Philippines after a magnitude 6.6 earthquake struck Octiber 29, 2019 in this picture obtained from social media. The earthquake also shook nearby provinces and cities, including Davao City, the hometown of President Rodrigo Duterte and among the most populous cities in the country. Jaypee Catalan via REUTERS

A damaged local town hall is seen in Mabini, Davao Del Sur, Philippines after a magnitude 6.6 earthquake struck Octiber 29, 2019 in this picture obtained from social media. Jaypee Catalan via REUTERS