A magnitude 5.1 earthquake struck west of Dalupiri, Cagayan, on Thursday, October 31, at 5:39 a.m., according to the Philippine Institute of Volcanology and Seismology (PHIVOLCS).

PHIVOLCS reported that the quake, tectonic in origin, had a depth of 10 kilometers.

The state seismologist indicated that no damage is expected, though aftershocks may occur.