Earthquake in the Philippines, August 11, 2011: Magnitude 5.4 quake rocks Luzon

A magnitude 5.4 earthquake has struck northern Luzon Thursday morning, the Philippine Institute of Volcanology and Seismology (Phivolcs) reported.

The red dot marks the epicenter of the August 11 quake | Courtesy of Phivolcs

The tectonic quake hit its epicenter, 37 km Southwest of Calayan, Cagayan, at 10:59 a.m. It has a depth of 16 km and was felt at the following intensities in the following areas:

Intensity IV - Calayan, Cagayan
Intensity III - Sanchez Mira, Cagayan
Intensity II - Pasuquin and Laoag, Ilocos Norte

The Philvolcs said it is expecting aftershocks from the temblor.

There have been no initial reports of damage from the quake.