A magnitude-4.4 earthquake rocked San Francisco, Quezon Monday, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.
Phivolcs traced the epicenter of the earthquake at 25 kilometers southwest of San Francisco.
The tremor which occurred at 8:05 a.m. had a depth of two kilometers and was tectonic in origin, meaning it was caused by ground shaking primarily due to the sudden movement in the Earth’s plates, Phivolcs said.
According to Phivolcs, the quake was felt with a maximum intensity of Intensity 3 or “weak shaking” in San Francisco and Mulanay.
It was also “slightly felt” at Intensity 2 in Lucena City while Intensity 1 or a “scarcely perceptible” shaking was recorded in Gumaca.
The State seismology bureau said the quake was among the aftershocks that have been recorded after a magnitude- 5.2 earthquake jolted San Francisco last Christmas Day.
No damage, as well as aftershocks, are expected from the earthquake, Phivolcs added.