Pinera Chile's congress also was evacuated moments after Pinera was sworn in Thursday as a precautionary measure.

Aftershocks with preliminary magnitudes of 5.1, 7.2, 6.9 and 6.0, respectively, rocked Chile throughout the inauguration.

Pinera kept his cool but said Chileans shouldn't ignore the possibility of dangerous waves. The Chilean Navy issued a tsunami warning, but the US Pacific Tsunami Warning Center said the aftershocks were too small to cause dangerous waves.

The 7.2 aftershock is the strongest yet. It was larger than Haiti's devastating magnitude-7 quake last month.