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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. + S- s4 F7 P2 u* Q& Z
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. % }' X4 s8 E& t P
It struck in the South China Sea off the west coast of Mindoro island at 2:23 p.m. local (0623 GMT).
; Q3 W5 L$ I# C- k; q# P# ^Local 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.
1 V. T" o2 l& \. N* A2 R$ _"It would have to be at least 6.5 magnitude to generate a tsunami," he said over local radio. * v7 x* M% G3 ~9 V ^/ Q7 G
The earth's disturbance occurred about 50.1 kilometers (31.1 miles) beneath the surface, according to a U.S. Geological Survey advisory.
& F" }' X3 v/ k9 WIt gave the center at a spot about 30 kilometers off Calintaan, a western Mindoro town of 24,000 people.
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