A magnitude 6.8 earthquake struck Surigao del Sur at 3:49 a.m. on Monday, Dec. 4, said the Philippine Institute of Volcanology and Seismology (Phivolcs).
The epicenter of the earthquake was located 67 kilometers northeast of Cagwait, Surigao del Sur, at a depth of one kilometer.
Although the Philippine Trench was also responsible for the tremor, Phivolcs said it was not an aftershock as it happened separately from the 7.4-magnitude earthquake that occurred in Surigao del Sur on Dec. 2.
The 6.8-magnitude quake was felt at Intensity V (strong) in Cagwait, Surigao del Sur.
It was also felt at Intensity IV (moderately strong) in Tarragona, Davao Oriental and City of Tandag, Surigao del Sur.
The earthquake was "weak" at Intensity III in City of Iligan; City of Cagayan de Oro; Banaybanay, Lupon, and City of Mati, Davao Oriental.
Its instruments also recorded the tremor at Intensity IV in Abuyog, Leyte; Hinunangan, Southern Leyte; City of Gingoog, Misamis Oriental; Nabunturan, Davao de Oro; City of Surigao, Surigao del Norte; and City of Bislig and City of Tandag, Surigao del Sur, while Intensity III in Quinapondan, Eastern Samar; Dulag, Hilongos, Kananga, and Mahaplag, Leyte; Sogod, Southern Leyte; Libona, City of Malaybalay, and San Fernando, Bukidnon; Magsaysay, Misamis Oriental; City of Cagayan de Oro; City of Digos, Davao del Sur; City of Davao; Malungon, Sarangani; Columbio, Sultan Kudarat; and City of Cabadbaran, Agusan del Norte.
Other instrumental intensities were recorded at Intensity II in Argao and Danao City, Cebu; Can-Avid, Eastern Samar; Alangalang, Albuera, Burauen, Carigara, Javier, Leyte, and Palo, Leyte; Ormoc City; City of Catbalogan, Samar; Malitbog, and San Juan, Southern Leyte; City of Dapitan, Zamboanga del Norte; Kadingilan and Maramag, Bukidnon; Initao, Misamis Oriental; Magsaysay, and Matanao, Davao del Sur; Don Marcelino, Davao Occidental; City of Kidapawan, Magpet, and President Roxas, Cotabato; Alabel, Sarangani; Tampakan and Tupi, South Cotabato; and City of General Santos.
Its intruments also recorded the quake at Intensity I in Talibon, Bohol; Asturias and City of Talisay, Cebu; Naval, Biliran; Calubian, Isabel and Villaba, Leyte; Rosario, Northern Samar; Basey and Villareal, Samar; Padre Burgos, Southern Leyte; Molave, Zamboanga del Sur; Banisilan and Carmen, Cotabato; Glan, Kiamba, and Malapatan, Sarangani; Norala, Polomolok, Santo Niño, Surallah, and T'Boli, South Cotabato; and Lambayong and President Quirino, Sultan Kudarat.
Phivolcs said no damages are expected but warned the public about possible aftershocks.