Manila, Philippines - A huge part of Metro Manila and different parts of Luzon was struck by a 5.7 Magnitude earthquake. It was felt at 3:31AM .
It's epicenter was traced at 43 kilometers southwest of San Antonio, Zambales said PhiVolcs.
The quake, which was tectonic in origin, struck at a depth of 10 kilometers.
Phivolcs said the quake will not cause damage but is expected to produce aftershocks.
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