How do underwater volcaneos form islands?

The movement of tectonic plates means the islands that form eventually move away from the hot spot and become extinct volcanoes. As they move away, new islands begin forming over the same hot spot. The cycle of volcano birth and extinction leads to the formation of island chains, as seen with Hawaii. read more

Underwater volcanoes, also known as submarine volcanoes, are natural calamities of very high intensities that are capable of destroying life whenever they occur. However, sometimes beautiful islands are formed due to volcanic eruptions and that could be a possibility of beginning of life. read more

1 Volcanoes are found all over Earth. Many of them are on land. Many more volcanoes are found under Earth's oceans. If an underwater volcano keeps erupting, it can rise above the ocean's surface. An island is formed. The country of Iceland formed millions of years ago from underwater volcanic eruptions. read more