By Mike Crismundo
BUTUAN CITY – Series of earthquakes shook Davao and Agusan provinces, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.
However, these four tremors that all struck Wednesday morning on the said provinces did not inflict any damage or injury.
In its bulletin, Phivolcs said a 3.0 magnitude earthquake was registered at 5:45 a.m.
The epicenter was plotted 19 kilometers (km) southwest of Boston town, Davao Oriental province, it said.
The tremor had a depth of 29 km.
Earlier, a 3.4 magnitude earthquake was also recorded at 5:29 a.m. and its epicenter was traced 13 km southwest in the nearby town of Manay of that same province, with a depth of 18 km, Phivolcs said.
At 3:16 a.m. of the same day, a magnitude 3.1 tremor was also registered and its epicenter was located 99 km southeast of Sarangani, Davao Occidental province, with a depth of 125 km, it also said.
Meanwhile, a 3.2 magnitude earthquake was recorded at 1:07 a.m. on the same day (May 9). The epicenter was pinpointed only 8 km southwest from the town proper of Loreto in Agusan del Sur province, with a depth of 43 km, Phivolcs said.
No tsunami alert or aftershocks were raised by the state agency in these four separate earthquakes that struck in said provinces in northeastern and southern Mindanao regions.
The four earthquakes were tectonic in origin.
The provincial disaster risk reduction and management councils said affected the provinces reported no damage or injury.