What are the stages of a Hawaiian Volcano? How old are the Hawaiian Islands? Objective At the end of this lesson, the students will be able to describe the impacts of deposition, weathering, and erosion on landforms. Background Hawaiian volcanic islands have been forming over a hot spot on the ocean floor for millions of years. There are eight stages in their development and eventual erosion. They are: (1) initial - deep submarine stage, (2) submarine - shield building stage, (3) sea level - shield building stage, (4) subaerial - shield building stage, (5) capping stage, (6) erosional stage - Duration: 30 Minutes.