An earthquake of magnitude 5.7 struck the central Philippines on Tuesday, the United States Geological Survey (USGS) said.
The offshore quake was at a depth of 19.2 km (12 miles), USGS said, off the central province of Eastern Samar.
The Philippine Institute of Volcanology and Seismology warned of damage and aftershocks in an advisory, but there were no immediate reports of casualties.
The Philippines lies on the “Ring of Fire”, a belt of volcanoes circling the Pacific Ocean that is prone to earthquakes.
The Ring of Fire is a string of volcanoes and sites of seismic activity, or earthquakes, around the edges of the Pacific Ocean.
The Ring of Fire isn’t quite a circular ring. It is shaped more like a 40,000-kilometre (25,000-mile) horseshoe. A string of 452 volcanoes stretches from the southern tip of South America, up along the coast of North America, across the Bering Strait, down through Japan, and into New Zealand. Several active and dormant volcanoes in Antarctica, however, “close” the ring.