GEOLOGY

Detailed explanation-1: -Dormant volcanoes have not erupted for a very long time but may erupt at a future time. Extinct volcanoes are not expected to erupt in the future.

Detailed explanation-2: -Volcanologists use that term as shorthand for “potentially active, ” so a “dormant” volcano is one that is not erupting now, but that is considered “active” because it could erupt in the future. Mount Hood is an active volcano that is currently dormant. Kīlauea is an active volcano that is currently erupting.

Detailed explanation-3: -Inactive volcanoes are also called dormant or sleeping volcanoes. These volcanoes are expected to erupt again at some point, despite being dormant for thousands of years. Examples of inactive volcanoes are Mount Fuji and Mount Rainier.

Detailed explanation-4: -Volcanoes go dormant because magma from the Earth’s mantle can no longer reach the volcano. For example, in Hawaii, the line of islands are slowly moving to the northwest. Meanwhile, the supply of magma stays in the same place within the Earth, which currently happens to lie beneath the Big Island.

Detailed explanation-5: -The largest dormant volcano in the world, Haleakalā, makes up a large part of Maui. Mount Haleakalā is also called the East Maui Volcano. Haleakalā is considered a dormant volcano because it has not erupted in a long time, but it could erupt again in the future. Haleakalā is a huge shield volcano.