Krakatoa, Indonesia

The islands left by the 1883 eruption, with the new Anak Krakatau.

Terra Explorer Volcanoes and craters

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The Standard resolution model is free as STL, 3MF, Colored 3MF, OBJ and a 16-bit heightmap. High resolution samples the place about ten times more finely.

Region
Indonesia
Position
-6.1021, 105.4230
Area
20 × 20 km
Real elevation
0 to 765 m (765 m of relief)
Printed size
150 mm (5.9 in) wide, about 1:133,300
Heights
1.5× exaggeration
Elevation data
Open satellite data (SRTM and others), about 30 m per point
Suggested color
Heat map
Group
Volcanoes and craters

About Krakatoa, Indonesia

Krakatoa (), also transcribed Krakatau (), is a caldera in the Sunda Strait between the islands of Java and Sumatra in the Indonesian province of Lampung. The caldera is part of a volcanic island group (Krakatoa archipelago) comprising four islands. Two of them are known as Lang and Verlaten; another, Rakata, is the only remnant of an island, also called Krakatoa, mostly destroyed by an eruption in 1883 which created the caldera. In 1927, a fourth island, Anak Krakatoa, or "Child of Krakatoa", emerged from the caldera formed in 1883. There has been new eruptive activity since the late 20th century, with a large collapse causing the 2018 Sunda Strait tsunami. A new cinder cone eventually grew out of its collapse scar from eruptions in the 2020s.

From Wikipedia: Krakatoa, text available under the Creative Commons Attribution-ShareAlike 4.0 license. The article’s history lists its authors.

Questions about Krakatoa, Indonesia

Where is Krakatoa?

Krakatoa is in Indonesia at -6.1021, 105.4230. The model covers a 20 by 20 kilometer square around that point.

How high is the terrain in the Krakatoa model?

The land in this model runs from 0 to 765 m (765 m of relief). These are the measured heights, printed 1.5 times taller so the shape is easy to see.

Can I 3D print Krakatoa?

Yes. Download the free Standard resolution STL and print it on any FDM or resin printer. It is 150 mm wide and about 13.6 mm tall, on a solid 5 mm base, at a scale of about 1:133,300. It also works for CNC carving. Use Customize to change the width, base thickness or height exaggeration, make it round or add a name plate.

How accurate is the Krakatoa model?

It is built from real elevation measurements, not an artist's guess: open satellite and survey data (NASA SRTM, Copernicus and national surveys), about 30 meters per point. The shaded picture on this page is made from the same data.

Is the Krakatoa model free?

The Standard resolution model is free as STL, 3MF, Colored 3MF, OBJ and a 16-bit heightmap. High resolution samples the place about ten times more finely and is a paid upgrade.

What is a Krakatoa terrain model good for?

People use it as a geology lesson you can hold, a classroom model or a desk piece.

About this terrain model

Embossify Terra builds Krakatoa, Indonesia from real measured elevation, not an artist's guess. Outside the United States the heights come from open satellite and survey data (NASA SRTM, Copernicus and national surveys), about 30 meters per point.

The model covers a 20 by 20 kilometer square centered on -6.1021, 105.4230. It prints 150 mm (5.9 in) wide on a solid base, a scale of about 1:133,300. The heights are exaggerated 1.5× so the shape is easy to see and feel; you can change that when you customize the model. The sea is flattened to zero, so land stands on a clean base.

New to terrain printing? Read how Terra works. The shaded picture on this page is made by Embossify from the same elevation data.