This is the bizarre moment customers broke into a dance while customers ran out of a restaurant during a magnitude 6.4 earthquake in the Philippines.

CCTV footage shows diners fleeing from the shop when they felt the strong shaking that struck Abra province on October 25.

Instead of panicking, however, a pair of workers decided to diffuse the tension by doing body waves.

Staff member Jo Barriga said: 'It's a 'side effect' of the earthquake. They did it just for laughs.'

The Philippine Institute of Volcanology and Seismology said the earthquake struck at a depth of 28 kilometres in Tineg, Abra at 10:59 pm local time on Tuesday.

The quake has triggered suspensions in school and government work in Ilocos Norte province, where at least 26 people have been injured, police and civil aviation authorities said.

Police and civil aviation authorities said at least 26 people have been injured in Ilocos Norte. No casualties have been reported so far.

Abra province was also the epicentre of a devastating magnitude 7 earthquake that struck last July 27.

The Philippines is an archipelago of more than 7,000 islands inside the Pacific 'Ring of Fire' where the majority of Earth's volcano eruptions and earthquakes happen.