Now zoom out to ~4000 miles eye altitude and look at the chain of Hawaiian Islands again. Notice the chain continues for thousands of miles up to Aleutian Islands (between Alaska and Siberia). Examine the northernmost sunken volcano (50 49 16.99N 167 16 36.12E) in this chain. Where was that volcano located when it was still active, erupting, and above the surface of the ocean?

Kilauea volcano.

Explanation:

Kilauea volcano is located on the Hawaiian Islands which is still active and continue eruption of lava from 1983 till now. The eruption of Kilauea volcano causing great damage to the property of the people living there. The age of Kilauea volcano is 280,000 years old and about 100,000 years ago this volcano emerge from sea level. Before 100,000 years, it was present inside the water. This volcano is one of the five volcanos which formed Hawaiian Islands.