Powerful Quake Hits Indonesia’s Sumatra Island

Posted September 5th, 2011 at 3:35 pm (UTC-5)
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A powerful earthquake has rocked the northern part of Indonesia's Sumatra island.

The U.S. Geological Survey says a 6.6-magnitude earthquake struck early Tuesday local time, about 100 kilometers southwest of the city of Medan. It was 110 kilometers deep.

No tsunami warning was issued and there were no immediate reports of casualties or damage.

Indonesia sits on the Pacific “Ring of Fire,” a series of fault lines that make the island nation prone to volcanic and seismic activity.