How was Kilimanjaro formed, and could it erupt again?

Kilimanjaro is a volcano standing on its own. How did it form, and is there any chance it erupts again?

Kilimanjaro is a volcano, formed where the East African Rift is slowly pulling the continent apart and letting magma rise through the thinned crust. The guide chapter The mountain: cones and glaciers tells the story of its three cones.

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