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A strong quake struck at sea off the central Philippines on Friday, but there were no immediate reports of casualties or damage, seismologists said. ( n! g2 a Z. R+ `. _
The U.S. Geological Survey measured the quake at 6.0, while the Philippine Institute of Volcanology and Seismology (Phivolcs) put it at 6.1. . x N' k/ W" f" I
It struck in the South China Sea off the west coast of Mindoro island at 2:23 p.m. local (0623 GMT).
! W# _: L' a% YLocal seismologist Ismael Narag said the quake generated enough potential power to unleash big waves, but added that the authorities did not think it was capable of triggering a tsunami so Phivolcs issued no warning. ! O( L' |+ ~2 H
"It would have to be at least 6.5 magnitude to generate a tsunami," he said over local radio. ' ~* F6 o% m$ f) e6 `: f
The earth's disturbance occurred about 50.1 kilometers (31.1 miles) beneath the surface, according to a U.S. Geological Survey advisory. * G+ y. O- p$ V" h5 o0 R+ r# Y
It gave the center at a spot about 30 kilometers off Calintaan, a western Mindoro town of 24,000 people.
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