Krakatoa is known as one of the deadliest volcanoes in modern history. The 1883 eruption is considered the second largest eruption in the world.
Indonesia, as the area with the largest number of active volcanoes on Earth, is a place where such events can occur at any time. Especially when Kratakau has "passed on" its power to a new, extremely active, one of the most dangerous volcanoes today, the "Child of Kratakau".
Its Indonesian name—Krakatau—is believed to be a typing error made by the British press reporting the 19th-century eruption.
Krakatau is a volcanic island in Indonesia that is an active volcano. It is located in the Sunda Strait between Sumatra and Java.
Indonesia has the highest concentration of volcanoes in the world. It is home to 17% (more than 130) of the world's active volcanoes.
When the Earth's crust is pushed deep into the Earth, the rocks melt and some of them come out through cracks and fissures in the Earth as lava.
In addition, the subduction zone changes direction between Sumatra and Java. At the point where it bends, enormous stresses are created. As a result, powerful fissures are formed, through which magma escapes to the surface in a powerful stream, causing gigantic eruptions. Such fissures were found in the area of the Kratakau volcano.
Although Krakatoa has been an active volcano throughout its existence, the most memorable and deadliest of all eruptions took place in August 1883. Most of the death occurred as an aftermath of a massive tsunami triggered by the explosion. 165 towns and villages were destroyed, and another 132 were seriously damaged.
As early as the 3rd century AD, the Chinese described its violent eruptions. Its eruption around 416 caused the original volcano to collapse, resulting in the formation of a huge caldera (a large depression in the top of the volcano) 7 kilometers long.
Other sources say that this event may have occurred in 535 and may have been the cause of the global cooling observed at that time in 535-536.