SSC MTS EXAM

Detailed explanation-1: -The Hawaiian Islands are at the southeast end of a chain of volcanoes that began to form more than 70 million years ago. Each island is made of one or more volcanoes, which first erupted on the floor of the Pacific Ocean and emerged above sea level only after countless eruptions.

Detailed explanation-2: -The eight main Hawaiian Islands are made up of 15 volcanoes, which are the youngest in a linear chain of more than 129 volcanoes (above and below sea level) that stretches for about 6, 100 km (3, 800 mi) across the north Pacific.

Detailed explanation-3: -The Hawaiian Islands were formed by a volcanic hot spot, an upwelling plume of magma, that creates new islands as the Pacific Plate moves over it.

Detailed explanation-4: -The oceanic crust on which the Hawaiian Islands reside is nearly 90 million years old, yet the oldest of these islands was formed a mere 5 million years ago.