At least two mild earthquakes shook the provinces of Ilocos Norte and Davao Occidental on Sunday, according to the Philippine Institute of Volcanology and Seismology (Phivolcs).
In its bulletin, Phivolcs said the first quake with a magnitude of 3.1 occurred at 1:22 am and the epicenter of the quake was traced five kilometers northeast of Don Marcelino in Davao Occidental.
The quake, which was tectonic in origin, had a depth of 140 kilometers.
The second quake with a magnitude 3.2 occurred around 1:51 pm with epicenter traced some 29 kilometers southwest of Curimao in Ilocos Norte.
The quake, which was tectonic in origin, had a depth of 34 kilometers.
Phivolcs did not record any felt intensity from the two tectonic quakes and there was no casualty or damage reported from the three tremors.
It added that no aftershocks are expected from these quakes.
The Philippines lies on the Pacific Ring of Fire, where 20 to 25 earthquakes per day—mostly imperceptible—are common, Phivolcs said.