GEOLOGY

Detailed explanation-1: -Volcanoes are classified as active, dormant, or extinct. Active volcanoes have a recent history of eruptions; they are likely to erupt again. 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: -Volcanoes thought to be extinct have erupted again. For example, Mount Vesuvius erupted famously in AD 79, destroying the towns of Herculaneum and Pompeii. And the Soufriere Hills volcano on the island of Montserrat resumed activity in 1995.

Detailed explanation-3: -New research points to volcanic activity as a major cause of prehistoric mass extinctions. Major volcanic eruptions could have caused mass extinctions throughout Earth’s history, including the one that wiped out the dinosaurs around 66 million years ago.

Detailed explanation-4: -Mauna Kea last erupted about 4, 500 years ago and is likely to erupt again. Its quiescent periods between eruptions are long compared to those of the active volcanoes Hualālai (which erupts every few hundred years), Mauna Loa (which erupts every few years to few tens of years) and Kīlauea (which erupts every few years).

Detailed explanation-5: -Ben Nevis, the tallest mountain in the United Kingdom. Hawaiian–Emperor seamount chain in the northern Pacific Ocean. Huascarán in Peru. Kyushu-Palau Ridge in the Philippine Sea. Mount Buninyong in Victoria Australia. Tamu Massif in the Northwest Pacific Ocean. More items