The Philippine Institute of Volcanology and Seismology (PHIVOLCS) has issued a tsunami advisory following a magnitude 6.7 earthquake that struck Cebu on Tuesday night.

The advisory warns of a minor sea level disturbance in some coastal areas, with wave heights expected to be less than one meter above normal tides.

“The concerned public is advised to be on alert for unusual waves. People are advised to stay away from the beach and not to go to the coast,” PHIVOLCS said.

“People whose houses are located very near the shoreline are advised to move farther inland,” it added.

The agency also issued precautions for those with boats in harbors, estuaries, or shallow coastal waters, advising them to secure their vessels and move away from the waterfront.

“Boats already at sea during this period should stay offshore in deep waters until further advised,” it added.