A series of underwater earthquakes have struck central Chile, two days after a powerful tremor rattled residents in the quake-prone country.
The latest quake measured 6.6 and occurred in the Pacific Ocean 97km kilometres west of Talca on Monday afternoon, according to the US Geological Survey.
Earlier, tremors were magnitude 6.0, 5.8 and 5.6, and happened on Sunday about 95km west of Chillan, in the Bio-Bio region.
There have been no reports of damage and no tsunamis are anticipated, AFP reports.
The quakes were among a series of at least two dozen aftershocks following Friday's powerful magnitude 6.8 quake which struck the same region.
The area is still reeling from a 8.8 quake and accompanying tsunami last year that killed over 500 people and caused $US30 billion of damage.