The name of the island of Kiribati that is volcanic is the Leeward Islands.
All of the Hawaiian Islands are volcanic, but only Hawaii, the Big Island, has active volcanoes at this time.
Krakatoa is a volcanic island that is part of Indonesia. In 1883, three volcanic mountains that made up a single island erupted, destroying much of the island. The remains from that eruption are also known as Krakatoa.
Kauai, Kahoolawe, Kuril Islands, Kwajelan atoll,
Lichen will probably be the first life you see.
Kiribati
It was probably at one time because all islands are formed by under water volcanoes.
All of the Hawaiian islands were volcanic at some point. And the big island still is, it's newest island. As your head towards the northwest from the big island each island is geologically older.
The active volcanoes in New Zealand are Ruapehu, Ngaruhoe and White Island. They are all part of the Taupo Volcanic Zone on the North Island.
The Pacific Island countries are vulnerable, especially Kiribati. Other countries at risk are the Netherlands, Bangladesh and indeed all low lying cities.
First of all there are different kinds of sea mounts, in reference to your question it would have to be a volcanic sea mount to begin with. It would become a volcanic island by continuing to erupt until it broke the surface of the ocean. Some excellent examples of volcanic sea mounts that became volcanic islands are the Hawaiian Islands
name all of the island nations you can find surrounding to continent
a genetic bottleneck