Earthquake today, Oct. 10 -- A new offshore earthquake with a preliminary 6.9 magnitude hit the same southern Philippine region struck Friday morning by a 7.4 magnitude earthquake, Philippine seismologists said.

Philippine Institute of Seismology and Volcanology chief Teresito Bacolcol said that Friday night's earthquake that jolted Manay town in Davao Oriental province was caused by movement in the same fault line, the Philippine Trench, at a depth of 10 kilometers (6 miles).

It wasn't immediately clear if it was a separate earthquake or an aftershock of Friday morning's 7.4-magnitude quake, which left at least five people dead.

(This is a developing story. Keep checking for more updates)

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