Tiny Island Emerges After Undersea Volcano Erupts off the Coast of Japan

A diving instructor and his wife were on a day trip when they heard about a mysterious creature lurking off the coast of Toyooka City.

An undersea volcano, situated half a mile off Iwo Jima's southern coast, erupted three weeks ago, offering a rare view of the birth of a small island.

Within days, volcanic ash and rocks piled up on the seabed, forming a new island about 328 feet in diameter and 66 feet above sea level, according to experts.

While volcanic activity near Iwo Jima is not uncommon, the formation of a new island is a remarkable development.

However, the island's crumbly structure is susceptible to erosion by the relentless waves, causing it to shrink.

Experts are analyzing the island's composition to determine its durability and potential longevity.

In the past, both undersea volcanoes and seismic activities have been responsible for the formation of new islands.

With Japan housing 111 of the world's 1,500 active volcanoes, the country sits within the Pacific's fiery ring.

Iwo Jima, known for its fierce World War II battles, holds historical significance for the United States Marines.