By Mike Crismundo
BUTUAN CITY – A moderately strong tectonic earthquake with a strength of 5.2 magnitude in the Richter scale rocked Davao Oriental province before midnight Wednesday, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.
The state agency is expecting aftershocks.
However, the Davao Oriental provincial disaster risk reduction and management council there reported no damage or injuries.
The quake was also felt in neighboring areas of Surigao del Sur.
In its latest bulletin, Phivolcs said a 5.2 magnitude earthquake was recorded at 10:59 p.m. Wednesday (June 13).
The epicenter was plotted 30 kilometers southeast of Governor Generoso, Davao Oriental province, it said.
The tremor has a depth of 144 km, the state agency said.
In its latest bulletin, Phivolcs also registered Intensity III in Davao City; Intensity II in Mati, also of Davao Oriental province; Mabini, Compostella Valley; and General Santos City.
In its instrumental Intensities, Phivolcs also recorded Intensity II in Alabel, Sarangani and General Santos while Intensity I also recorded in Kidapawan City, North Cotabato.
The earthquake was tectonic in origin and no tsunami alert was raised by the state agency but aftershocks are expected.
Earlier, a 3.6 magnitude earthquake also shook Sibagat town, Agusan del Sur province at 6:06 p.m. also on Wednesday. The epicenter was located only 7 km from the town proper of Sibagat, with a shallow depth of only 1 km, Phivolcs said.
Intensity lll was also recorded in Butuan, the capital city in Northeastern Mindanao or Caraga region.
The two tremors that struck Davao Oriental and Agusan del Sur provinces Wednesday night were both tectonic in origin, the state agency added.