Manila, May 27 -- No major damage has been initially recorded from the magnitude 4.6 earthquake that jolted Quezon province and other areas in Luzon, including Metro Manila, on Tuesday afternoon, the Office of Civil Defense (OCD) said.

The OCD cited data from the Philippine Institute of Volcanology and Seismology (Phivolcs) indicating that the quake was caused by a local fault in the Sierra Madre Range and is not connected to the West Valley Fault.

At least 19 aftershocks had been recorded, it added.

"The situation remains under close watch. Authorities continue to urge the public to stay calm and follow official safety guidelines," the OCD said in a statement.

"Dam operators in Central Luzon continue to monitor Angat, Ipo, Bustos, an...