Chile was shaken by a 6.1 magnitude aftershock last night, AFP reported.
The shake caused no damage or injuries, but created some panic in Concepcion, authorities and eyewitnesses said, where people ran out into the streets.
In February, an 8.8-magnitude quake and tsunami centred around Concepcion killed at least 452 people and caused some US$30 billion in damage.
Around 100 people are still missing.
Chile rattled by 6.1 aftershock
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