Largest Volcanoes In The World
A volcano is a mountain that has lava coming out from a magma chamber under the ground, or did have in the past.
Volcanoes are formed by the movement of tectonic plates.
The Earth’s crust is broken into 17 major, rigid tectonic plates.
These float on a hotter, softer layer in its mantle.
Volcanoes are often found where tectonic plates are moving apart or coming together.
Volcanoes can also form where there is stretching and thinning of the crust’s plates, e.g., in the East African Rift.
Volcanoes are usually not found where two tectonic plates slide past one another.
There are two types of volcanoes:
- Shield volcanoes: These volcanoes are formed by fluid low-silica mafic lava. Shield volcanoes are built out of layers of lava from continual eruptions. Because the lava is so fluid, it spreads out, often over a wide area. Shield volcanoes do not grow to a great height, and the layers of lava spread out to give the volcano gently sloping sides. Shield volcanoes can produce huge areas of basalt, which is usually what lava is when cooled.
- Stratovolcanoes: A stratovolcano, also known as a composite volcano, is a tall, conical volcano. It is built up of many layers of hardened lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes have a steep profile and periodic eruptions. The lava that flows from stratovolcanoes cools and hardens before spreading far.
List of Top 10 largest Volcanoes in the World:
|1. Mauna Loa||Hawaii|
|2. Mount Fuji||Tokyo, Japan|
|3. Mayon Volcano||Albay, Philippines|
|4. Mount St. Helens||Washington, USA|
|5. Popocatépetl Volcano||Mexico|
|6. Arenal Volcano||Costa Rica|
|7. Mount Bromo and Mount Semeru||East Java, Indonesia|
|8. Mount Kilimanjaro||Kilimanjaro National Park, Tanzania|
|9. Etna||Catania, Sicily, Italy|
|10. The Maelifell Volcano||Iceland|