Group+5

· What area are you focusing on? · What earth movements pose risks to the people of this area? · Why is this area at risk of being affected by earth movements? · What is the history of earth movements in this area? · How have people in your area been affected by earth movements in the past? · What steps can people/governments take to help prepare for and protect their area from earth movements? · What should people do in case they experience an earth movement in their area?

Volcanoes
==== Mount. Krakatau is located in Indonesia west of Java and south of Sumatra. It is 813 meters high. Mount. Krakatau was once 1,800 meters high but it shrunk after its most violent eruption. It is an active volcano. That means it can erupt anytime. A volcano is an opening in the earth’s crust. The pressure from the magma inside the earth goes up and forms a mountain with magma in it. That’s because magma doesn’t weigh as much as it’s surroundings. It takes between 10,000-500,000 years for a volcano to be formed. That’s a long time. Then when the magma presses to much the magma fly’s out with gas, rock, ash and other things. Volcanoes can cause tsunamis. Tsunamis are really big waves. Tsunami means harbor-wave. Some tsunamis are really big and others are smaller. When the tsunami comes closer and closer to the coast it becomes bigger. It can cause destruction and death. When a volcano erupts rock comes out too. If a big piece of rock splashes into the sea the force makes the water rise and travel father and father away. It gets faster and faster. You have to be careful if you live by a volcano. It can cause massive destruction. ====

** The history of Mount Krakatau **
==== Mount Krakatau’s third eruption ended in disaster. Krakatau exploded so Australia heard the explosion from over 2,000 miles away. Mount Krakatau’s explosion sanded tsunamis to Hawaiian and South America that killed 36,000 people. The explosion made many tsunamis as high as 37meters and 120ft high. At the same time in Indonesia rock and ash covered the sky for two whole days. And for the rest of the year in Indonesia the sky was looking like sunsets. The explosion blew away the northern two thirds of the island. This was the most violent explosion on earth at that time. ==== ==== The the island was made in 1921. The earliest eruption was in 1680-81. The second eruptions was in May 20,1883, making for gigantic eruptions on August 27 that leaded too the violent explosion. Mount Krakatau has grown at an avenge rate of five inches and 13cm per week since the 1950s. It grows up to 6.8 meters per year. The last eruption was in 2007 September 09 ====

** Why is Mount Krakatau at risk of being affected by an eruption **
==== Mount Krakatau is an active volcano. It is on the ring of fire. The ring of fire is a tectonic plate that is located in the pacific ocean and on this titanic plate there is so many volcanoes a that are erupting so they call it the ring of fire because it is bad to be around there. Mount Krakatau is in Indonesia and the volcanoes in Indonesia are the most active volcanoes on the ring of fire. Mount Krakatau between the Eurasian plate and the Indo Australian plate. There where many volcanoes around Mount Krakatau that could have cased the bigger eruptions. 1883 it was a eruption and it began with many earthquakes and after a month there came smoke and ash out from the volcano and later it erupted. ====