A 7.6-magnitude earthquake has struck off the coast of Antarctica in the famous Drake Passage - with shockwaves reaching as far as Chile .

The quake was recorded at 8.29pm tonight, the GFZ German Research Centre for Geosciences said. 22:46 Benedict Tetzlaff-Deas

Why is it called the Drake Passage?

The Drake Passage strecthes 500 miles between South America's Cape Horn and the South Shetland Islands of Antarctica, and is known as the "roughest sea in the world" .

It is named after the 16th-century English explorer and privateer Sir Francis Drake, though he never actually crossed the water. 22:35 Benedict Tetzlaff-Deas

Second tsunami alert issued

According to the US Tsunami Warning System, tsunami waves are "possible for coasts located within 1000km of the earthquake epicen

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