VIDEO: News anchor keeps his cool during powerful earthquake

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(CNN) - A powerful 6-point-7 magnitude earthquake rocked Chile overnight.

It hit near the coastal port of Valparaiso - but it was strong enough to shake buildings in the capital city Santiago - about 70 miles away.

This was the moment the tremor was felt in Santiago.

An anchor with CNN Chile was on the air and remained calm, even saying at one point it felt like a magnitude six quake.