The mark consists of The colors express the layers of color in the depths of the ocean. The darkest blue represents the deepest part of a coral island bursting at the bottom of the ocean. As the depth decreases, the colors of the blues shift towards lighter colors. The tones of the colors are not ranked regularly, this is because the places where the volcano erupted have different depths. The meaning of the shapes is the asymmetrical shapes of the volcano erupting at the bottom of the ocean. The irregular shapes are a representation of a volcanic coral island erupting at the bottom of the water..