Indonesia is in the Pacific Fire Ring, an area where the tectonic plates meet and interact with each other.
There are more than 100 volcanoes in Indonesia, most of them are formed due to tectonic plates.
Earthquakes in Indonesia often occur because of tectonic plates that rub against each other.
There are two main tectonic plates that meet in Indonesia: Indo-Australian plates and Eurasian plates.
Sundanese Islands, including Java, Bali and Sumatra, are formed due to tectonic plates that collide with each other.
Indo-Australian plates are moving north and slightly pressing the Eurasian plate, so there is an earthquake and volcanism in the territory of Indonesia.
There is a subduction trough along the west coast of Sumatra, where the Indo-Australian plate sinks under the Eurasian plate.
The eruption of Mount Krakatau in 1883 issued smoke and volcanic ash up to a height of 80 kilometers above sea level.
There are many volcanic islands in Indonesia, such as Krakatau Island, Merapi Island, and Kelud Island.
Indonesia is a country with a high risk of natural disasters due to tectonic plates, including earthquakes, tsunamis, and volcanic eruptions.