There is a subduction zone under Krakatoa where the Indian ocean seafloor is being pushed eastwards under Indonesia. (The Australian plate is moving under the Eurasian plate here.) When the seafloor is pushed into the earth it melts due to increases in pressure and temperature. The hot, melted seafloor material (now known as magma) rises up and creates volcanoes like Krakatoa.
The tectonic plates around Krakatoa, located in the Sunda Arc of Indonesia, primarily move in a northward and eastward direction due to the subduction of the Indo-Australian Plate beneath the Eurasian Plate. This movement contributes to volcanic activity in the region, including the eruptions of Krakatoa. Additionally, the complex interactions of the surrounding plates can lead to varying degrees of seismic activity. Overall, the area is characterized by significant tectonic dynamics.
Seafloor spreading
Convergent and divergent boundaries are terms used in plate tectonics to describe the juncture at two plates and how they move in relation to each other. Divergent plates move apart and convergent move towards each other.
When tectonic plates move apart, it creates a divergent boundary. As the plates separate, magma from beneath the Earth's surface can rise up, creating new crust. This process can lead to the formation of volcanic activity and mid-ocean ridges.
When two plates move away from one another, it creates a divergent boundary where new crust is formed as magma rises to fill the gap. This process is associated with features like mid-ocean ridges and volcanic activity.
The Krakatoa plates moved in a convergent manner, where the Indo-Australian Plate subducted beneath the Eurasian Plate. This movement led to the intense volcanic activity and eventual eruption of Krakatoa in 1883.
The tectonic plates around Krakatoa, located in the Sunda Arc of Indonesia, primarily move in a northward and eastward direction due to the subduction of the Indo-Australian Plate beneath the Eurasian Plate. This movement contributes to volcanic activity in the region, including the eruptions of Krakatoa. Additionally, the complex interactions of the surrounding plates can lead to varying degrees of seismic activity. Overall, the area is characterized by significant tectonic dynamics.
The Eurasian and the Indian Plates collided to make Krakatoa (also known as Krakatau) erupt
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they are formed when two plates move towards each othe and crash
When two plates move past each other, a transform fault boundary is formed. This boundary is characterized by horizontal motion, and the friction between the plates causes earthquakes along the fault line.
It forms a hole but new crust is formed.
When two lithospheric plates move apart, a divergent boundary is formed. This process results in the creation of new oceanic crust as magma rises to fill the gap between the plates, forming a mid-ocean ridge.
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A mid-ocean ridge is formed when plates diverge or move apart. This is where new crust is created as magma rises to fill the gap created by the separating plates.
As the plates move move away, the volcano stops erupting and a new one is formed in its placed.
When the two plates collide, they fold. causing both plates to move upwards trying to get around one another. Over time when the plates move upwards, mountains form. This is exactly how Everest was formed.