Koko Crater
Koko Crater, a
tuff ring, formed by
the interaction of magma and water. Koko Crater is the tallest tuff ring
(1,207 feet, 368 m) in Hawaii. The persistent trade winds caused the ash
to accumulate on the southwest side of the ring. Slide courtesy of the
Peter Mouginis-Mark, Hawaii Space Grant College.
Images of Volcanoes
To VolcanoWorld