At least two mild earthquakes shook the provinces of Surigao del Norte and Ilocos Norte on Thursday morning , according to the Philippine Institute of Volcanology and Seismology (Phivolcs).
In its bulletin, Phivolcs said the first quake with a magnitude of 4.1 occurred at 3:24 a.m. with its epicenter traced 6 kilometers southeast of Burgos in Surigao del Norte.
The quake, which was tectonic in origin, had a depth of 11 kilometers.
The second quake with a magnitude 3.9 occurred around 3:39 a.m. with its epicenter traced some 16 kilometers northeast of Pagudpud in Ilocos Norte.
The quake, which was tectonic in origin, had a depth of 22 kilometers.
Phivolcs said there was no casualty or damage reported and no aftershocks are expected from the two quakes. PNA