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The coloured areas on this map indicate the coastal regions that flooded after the 1883 Krakatoa volcanic eruption. Krakatoa is shown in the centre of the Sunda Strait, between Sumatra and Java.

The shaded area on this map is where volcanic ash fell from the 1883 eruption of Krakatoa (Sunda Strait between Sumatra and Java). Red figures record the thickness of the ash in millimetres; black figures are distance from the eruption in kilometres.

Two geological maps and four sectional drawings showing the Krakatoa volcano before and after its 1883 eruption.

Nine maps of the effects of the 1883 Krakatoa volcanic eruption, including on Rakata Island itself, and Calmeyer Island (formed by the eruption). Other maps use brown shading to show the flooding of nearby islands and settlements by ensuing tsunamis.

A map of the effects of the 1883 Krakatoa volcanic eruption. The orange line is the islands’ outline pre-eruption; the red line is the boundary of the collapsed area. Red numbers are sea depth. Pre- and post-eruption sizes of the islands are listed.