MANILA, --Three strong earthquakes struck the Philippines main island of Luzon on Saturday, the US Geological Survey (USGS) reported.

The quakes ranged in magnitude from 5.0 to 5.9 and struck Batangas province, about 90 kilometers (55 miles) south of the capital Manila. The quakes happened over a 20 minute period, the USGS said.

Renato Solidum, head of the Philippine Institute of Volcanology and Seismology, said the event was an "earthquake swarm" in a local faultline but had not been powerful enough to cause a tsunami. "These swarms are natural occurrences and we do not expect a big quake in this area," he said.

Source: Emirates News Agency