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An earthquake has struck near Sumatra, Indonesia. The preliminary magnitude was 6.0, according to the U.S. Geological Survey. No tsunami is expected to be produced by the temblor. Details from the USGS:

Date-Time:

August 22, 2011 at 20:12:20 UTC

August 23, 2011 at 03:12:20 AM at epicenter

Location: 6.410 S, 103.985 E

Depth: 31.3 km (19.4 miles)

Distances from epicenter:

176 km (110 miles) SW (233