At least two quakes — one measuring magnitude 4.9 — rocked Mindanao Sunday, but state seismologists said no damage or aftershock was expected.
The Philippine Institute of Volcanology and Seismology (Phivolcs) said the first quake with magnitude 3.1 was tectonic and was recorded at 5:57 a.m., with the epicenter 64 km northeast of Surigao City.
It did not indicate areas where the quake was felt.
The second quake measured magnitude 4.9 and was recorded at 11:19 a.m., with the epicenter 96 km southwest of Cotabato City.
Phivolcs did not report any area where the second quake was felt.
Meanwhile, the United States Geological Survey said the second quake’s
epicenter was some 105 km southwest of Cotabato; 130 km south of
Pagadian; 155 km east of Zamboanga; or 915 km south-southeast of Manila.
