When Was the Sunken Continent?

'Icelandia

' was lost to the sea 10 million years ago. Iceland may be the last exposed remnant of a nearly Texas-size continent — called Icelandia — that sank beneath the North Atlantic Ocean about 10 million years ago, according to a new theory proposed by an international team of geophysicists and geologists.

How many drowned continents are there?

You've likely been taught that there are 7 continents on Earth. However, now there is evidence for an eighth continent hidden mostly underwater. The submerged continent of Zealandia broke away from the supercontinent Gondwanaland about 80 million years ago.

Is New Zealand the 8th continent?

An eighth continent, called Zealandia, is hidden under New Zealand and the surrounding Pacific. Since 94% of Zealandia is submerged, discerning the continent's age and mapping it is difficult. New research suggests Zealandia is 1 billion years old, about twice as old as geologists thought.