By Mike U. Crismundo
Two mild tectonic earthquakes jolted Agusan del Norte and Davao Oriental provinces on Tuesday, Aug. 22, 2017, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.
The Agusan del Norte and Davao Oriental provincial disaster risk reduction and management councils reported no damage or injury.
In its bulletin, Phivolcs said a 2.6 magnitude tremor was registered at 12:15 a.m. on Tuesday (Aug. 22).
The epicenter was plotted only 9 kilometers northeast of Santiago town, Agusan del Norte province.
The earthquake had a shallow depth of only 4 km, Phivolcs said.
At 1:26 a.m. of the same day (Aug. 22), a 3.1 magnitude tremor was also recorded and its epicenter was traced 41 km southeast of Governor Generoso town, Davao Oriental province .
The earthquake had a depth of 29 km, it said.
No aftershock was raised by the state agency on the said two tectonic earthquakes.
On Monday (Aug. 21), a 2.3 magnitude earthquake was also registered at 10:46 p.m. and its epicenter was traced 15 km northeast of Cantilan town, Surigao del Sur province, with a depth of 29 km, Phivolcs added.