MANILA, Jan.30 (Xinhua) -- A 5.4-magnitude earthquake jolted Philippine Islands region at 02:32:19 GMT on Wednesday, the U.S. Geological Survey said.
The epicenter, with a depth of 46.00 km, was initially determined to be at 10.5577 degrees north latitude and 126.6844 degrees east longitude.
'Joint effort' urged to clear the air