MANILA: An earthquake with a magnitude of 5.3 jolted Luzon of the Philippines on Sunday morning, the US Geological Survey said.

The epicentre, with a depth of 86.86 km, was initially determined to be at 14.0476 degrees north latitude and 120.525 degrees east longitude.

The three widely felt earthquakes shook the Philippines today, but it’s unclear if they triggered each other.

They appear to have struck on the twin subduction zones that formed the islands. These zones are capable of great quakes; eight have struck here over the past 200 years.

The earthquake, which struck at 3.18am. local time on Sunday, was centered in the sea, about 31km (20 miles) northeast of Lubang Island, or 89km (55 miles) west of Calamba and 65km (41 miles) southwest of Balanga.

The Philippine Institute of Volcanology and Seismology (PHIVOLCS) said the quake measured 5.5 and struck at a depth of 85km (53 miles), which is relatively deep.

There is no threat of a tsunami but aftershocks are likely, according to PHIVOLCS.

Shaking from the earthquake was felt across the region, including in Manila and Quezon City, where some said the tremors were strong enough to wake them. There were no immediate reports of damage or casualties.

The Philippines is on the so-called ‘Pacific Ring of Fire’, an arc of fault lines circling the Pacific Basin which are prone to frequent and large earthquakes. Volcanic eruptions also occur frequently in the region. – The Philipines Daily Inquirer/Asian News Network

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