List of islands created since the 20th century

Two years later, Surtsey was declared a nature reserve for the study of ecological succession; plants, insects, birds, seals, and other forms of life have since established themselves on the island.

Another noted new island is Anak Krakatau (the so-called "child of Krakatoa", which formed in the flooded caldera of that notorious volcano in Indonesia), which emerged only in 1930.

Didicas Volcano off the northern coast of Luzon Island in the Philippines, was first created during a four-year eruption from 1856 to 1860 but eventually got washed away.

On September 24, 2013 a new island named Zalzala Koh emerged off the coast of Gwadar, as a result of a strong earthquake that hit south and southwest Pakistan measuring 7.8 on the Richter magnitude scale.

[5] In November 2023, a new island formed as a result of volcanic activity off the coast of Iwo Jima, reaching a diameter of 100 meters.