Last updated at 06:42

Japan's volcanic island keeps getting bigger and bigger

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In the Pacific Ocean, near Japan, a volcanic island that first appeared in 2013 just keeps getting bigger.

One of the world's newest islands, it appeared over 15 months ago when an underwater eruption spewed so much lava that the rock rose above the sea's surface.

It has now grown to eleven times its original size and shows no sign of stopping.

Watch Martin's report to find out more.