WASHINGTON, Jan 22 (Reuters) - A 6.7-magnitude quake struck off the coast of Sumatra, Indonesia, on Tuesday, the U.S. Geological Service said.

The quake strick 88 miles (144 km) west of Sibolga, Sumatra at 12:15 p.m. EST (1715 GMT) at a depth of 26.7 miles (43 km), the USGS said.

The Pacific Tsunami Warning Center said there were no immediate tsunami warnings or watches in effect.

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