A powerful earthquake hit off west coast of Indonesia's Sumatra Island on Wednesday morning, Forbes reported.

There were no immediate reports of deaths, injuries or damage as result of the temblor.

The epicenter of the quake, which struck at 7.19 am (0019 GMT), was located about 129 kilometers southwest of the city of Padang, at a depth of 20 kilometers.

Authorities have not issued a tsunami after the quake.

A series of strong tremors in the same region killed 23 people and damaged thousands of buildings last month.

Indonesia, which sits on the Pacific Basin's "Ring of Fire" - an arc of volcanos and fault lines, is prone to seismic upheaval.

In December 2004, a massive earthquake off Sumatra island triggered a tsunami that killed more than 230,000 people, including 160,000 people in Indonesia's province of Aceh.

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