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| Indonesia Volcano: Why is the region such a hotbed of activity? | Indonesia Volcano: Why is the region such a hotbed of activity? |
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| Indonesia has experienced yet more volcanic activity as Mount Kelud erupted on Thursday, causing 100,000 to flee their homes and covering Java - the country’s most heavily populated island - in ash. But why is the region such a hotbed of volcanic activity? | Indonesia has experienced yet more volcanic activity as Mount Kelud erupted on Thursday, causing 100,000 to flee their homes and covering Java - the country’s most heavily populated island - in ash. But why is the region such a hotbed of volcanic activity? |
| Indonesia has approximately 130 active volcanoes. Due to its population density and the fertile soils that volcanic slopes provide, hundreds of thousands of Indonesians live close to active volcanos. They have learnt to live with the rumblings and frequently ignore orders to leave. | Indonesia has approximately 130 active volcanoes. Due to its population density and the fertile soils that volcanic slopes provide, hundreds of thousands of Indonesians live close to active volcanos. They have learnt to live with the rumblings and frequently ignore orders to leave. |
| The huge archipelago sits between the most active seismic region in the world, the Pacific Ring of Fire, an area where a large number of earthquakes and volcanic eruptions occur, and the Alpide Belt. | |
| The United States Geological Survey has described the region as among the most seismically active zones in the world. | The United States Geological Survey has described the region as among the most seismically active zones in the world. |
| The Ring of Fire, or the circum-Pacific belt, is the world’s greatest earthquake belt, according to Live Science, because of fault lines running from Chile to Japan and Southeast Asia. These fault lines are breaks in the plates of the Earth’s crust and are where earthquakes are likely to occur. | The Ring of Fire, or the circum-Pacific belt, is the world’s greatest earthquake belt, according to Live Science, because of fault lines running from Chile to Japan and Southeast Asia. These fault lines are breaks in the plates of the Earth’s crust and are where earthquakes are likely to occur. |
| The Pacific Ring of Fire is also home to 453 volcanoes and more than half of the world’s active and dormant volcanoes are found here. | The Pacific Ring of Fire is also home to 453 volcanoes and more than half of the world’s active and dormant volcanoes are found here. |
| Indonesia is located between the Pacific, Eurasian, and Australian tectonic plates. When one of the plates moves, it causes earthquakes, volcanic eruptions and even tsunamis in Indonesia and the surrounding areas. | Indonesia is located between the Pacific, Eurasian, and Australian tectonic plates. When one of the plates moves, it causes earthquakes, volcanic eruptions and even tsunamis in Indonesia and the surrounding areas. |
| Katherine Cashman, a professor of Volcanology at Bristol University explained: "Indonesia lies on a subduction zone, where one plate dives under the other. Subduction causes big earth quakes and volcanoes. It’s also quite a complex set of subduction zones. | Katherine Cashman, a professor of Volcanology at Bristol University explained: "Indonesia lies on a subduction zone, where one plate dives under the other. Subduction causes big earth quakes and volcanoes. It’s also quite a complex set of subduction zones. |
| "The earth is divided into plates, which are semi rigid, but they do move sometimes and interact with each other. Indonesia has the unlucky circumstance of being on a very major plate boundary, and particularly under Java, you have one plate diving directly under another plate, so as it dives under it starts to produce melt that comes up as a volcano." | "The earth is divided into plates, which are semi rigid, but they do move sometimes and interact with each other. Indonesia has the unlucky circumstance of being on a very major plate boundary, and particularly under Java, you have one plate diving directly under another plate, so as it dives under it starts to produce melt that comes up as a volcano." |
| The 2004 Indian Ocean tsunami was caused by an earthquake on the ocean floor near Sumatra in Indonesia. The earthquake hit Indonesia, Sri Lanka, India, Thailand, Maldives, and even Africa in one of the worst natural disasters the world has ever seen. | The 2004 Indian Ocean tsunami was caused by an earthquake on the ocean floor near Sumatra in Indonesia. The earthquake hit Indonesia, Sri Lanka, India, Thailand, Maldives, and even Africa in one of the worst natural disasters the world has ever seen. |