I hope you'll enjoy

1. Tamu massif

The largest inactive volcano

Don't worry as it was active many million years ago. Now its 4 miles deep in the ocean.

Tamu Massif is an extinct submarine shield volcano in the northwest Pacific Ocean, with the characteristics of a hybrid between a mid-ocean ridge and a shield volcano.

Mount Kilimanjaro

Planning a trip to Mount Kilimanjaro ?

it is the tallest Vol. 

on the African continent and the highest free-standing vol. in the world.

Mount Kilimanjaro lies just 205 miles from the equator, in the country of Tanzania. When early explorers reported seeing glaciers on the top of Kilimanjaro, people did not believe them as they thought it was impossible for ice to form so close to the hot, equatorial sun. Scientists now believe that the glaciers shrink and then regrow during the planet’s ice ages.

 The mountain once had three volcanic cones – Kibo, Shira and Mawenzi.

Kikai Caldera

Japan

Kikai is a submarine caldera with three small islands, parts of the caldera rim, that project above sea level. The caldera is about 19 km in diameter. Submarine topography suggests the presence of a double collapse structure.

Three large -rich eruptions have been produced by Kikai. The most recent caldera-forming eruption was about 6,300 years ago and was the largest eruption on Earth in the last 10,000 years. About 150 cubic km of  was erupted.