Source: DTN News - - This article compiled by Roger Smith from reliable sources Asian Defense News
(NSI News Source Info) JAKARTA, Indonesia - December 21, 2010: A 5.7-magnitude earthquake struck off northern Indonesia's Sumatra island Tuesday, the US Geological Survey (USGS) said, placing its epicentre near the site of the devastating December 2004 quake.
There was no immediate tsunami warning.
The 6.2-magnitude earthquake struck Simeulue island at a depth of 27 kilometres (16 miles)
The moderate quake struck Simeulue island at a depth of 18 kilometres (11 miles miles) at 9.07 pm local time (1407 GMT), with its epicentre 312 kilometres west of Medan on the Sumatra mainland and 315 kilometres southeast of Bandah Aceh, the USGS said.
The 9.1-magnitude earthquake of December 26, 2004, one of the most powerful ever measured, struck in the strait between Simeulue and Sumatra, triggering a tsunami that killed more than 220,000 people around the Indian Ocean.
Indonesia sits on the Pacific "Ring of Fire", where the meeting of continental plates causes high seismic activity.
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