MANILA, Philippines — A magnitude 4.1 earthquake jolted Davao Occidental while a magnitude 4.2 earthquake hit Ilocos Sur on Friday, according to the Philippine Institute of Volcanology and Seismology (Phivolcs).
State seismologists recorded the earthquake in Davao Occidental at 2:20 a.m. and traced its epicenter some 137 kilometers southeast of Balut Island in the municipality of Sarangani, Davao Occidental.
Phivolcs said that the Davao Occidental earthquake was tectonic in origin with a depth of focus of 120 kilometers.
No damage or aftershocks are expected, Phivolcs said.
Meanwhile, the earthquake in Ilocos sur was recorded at 2:43 a.m. Its epicenter was traced some four kilometers northeast of Quirino, Ilocos Sur.
The Ilocos Sur earthquake is another aftershock of the magnitude 7 earthquake that jolted Abra and many other parts of Luzon last July 27, Phivolcs said.
The earthquake, which was of tectonic origin, had a depth of three kilometers and was measured at Instrumental intensity II in Basista, Pangasinan.
Phivolcs said that no damage or aftershocks are expected.