Fernandina Island is the youngest and third largest island in the Galapagos, as well as the westernmost. It has an area of 642 km² and a height of 1,476 m, with a boiler at the top about 6.5 km wide. It is younger than Isabela, having only less than a million years since its formation. The island with the most geological activity, its volcano last erupted less than 10 years ago years.
Fernandina Island is one of the farthest islands to the west of the Galapagos archipelago. It is one of the youngest on the island (the third oldest) and was formed less than a million years ago. The island is large by Galapagos standards and covers an area of 248 square miles (642 square kilometers). It is a shield-shaped volcano with a boiler that spans a width of four miles (6.5 kilometers).
The island is considered to be the most volcanically active.
