Question

how have the other hawaiian islands formed?

Explanation:

The Hawaiian Islands formed due to volcanic activity over millions of years. As the Pacific tectonic plate moves over a stationary hot - spot in the Earth's mantle, magma rises and erupts to form volcanoes on the ocean floor. Over time, repeated eruptions build up these volcanoes until they break the ocean surface and form islands.

Answer:

The Hawaiian Islands formed as the Pacific tectonic plate moved over a hot - spot in the Earth's mantle, with volcanic eruptions building up the islands over time.