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Transcript of VOLCANOES
How Dangerous Are Volcanoes?
A major disaster of a volcano known in ancient times, when the roman empire was still strong, was the destruction caused in Pompeii by the volcano that had been dormant there.
SAMUEL C, CHRIS L, AND WILLIAM T
The location in which the most volcanoes are located is in the Ring of Fire.
The Ring of Fire is located around the Pacific Ocean. This area is called the Ring of Fire because it marks the area of high volcanic and seismic (earthquake) activity
A way that Volcanoes can be dangerous are through eruptions.
Volcanic eruptions are caused when the rock inside the earth melts and creates magma. The amount of pressure makes volcanoes erupt. Pressure in the earth can increases from earthquakes, and the movement of tectonic plates.
When volcanoes erupt they release many hazardous gases such as sulfuric gases, carbon dioxide, and ash into the environment. This can cause devastation to vegetation, pollute water, and can even kills humans and animals nearby. Lava is also released from eruptions but moves very slowly so it can be avoided easily on foot but lava is extremely hot and can go up to approximately (1,292-2192 degrees Farenheit) which can burn down vegetation and structure in its way.
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Pompeii was a ancient city in Rome. Mt. Vesuvius, a volcano near Pompeii, began to emit a white smoke in the air. The people back then did not have any knowledge about volcanoes so people paid little attention to it. Later, during that time, there were earthquakes and it began to rain rocks. Many people hid in their homes while others, who were trying to evacuate, died. When the volcano finally erupted in 79 AD, the whole city was destroyed and covered in ash and only ruins of it remain today. The volcano is still active today and is considered one of the most dangerous volcanoes today.
The largest known volcano in the world today is the Mauna Loa in Hawaii. This volcano has been around since ancient times and is still active today. This volcano's peak is around 120 ft tall. The volume of the volcano is approximately 180,000 cubic meters. The Hawaii Islands were all formed from volcanic activity.
The largest Eruption known to date was from Mount. Tambora in the Sumbawa Islands (Modern day Indonesia) on April 10, 1815. This eruption sent so much crud into the atmosphere that it blocked the sun. The number of deaths after this eruption was estimated to 100,000 people. The eruption also produced waves as tall as 10 meters(32.8 ft). This year was known to be the year without a summer because the worldwide temperature decreased and created one of the worst famines in the 19th century.
When you inhale volcanic ash, it can cause can problems in your respiratory system preventing your from breathing properly and leading to death. Breathing in ash can also severely damage your lungs. It can also cause skin irritation if the ash is acidic. Ash can also cause irritation in the eyes.
Volcanic ash can also be harmful to airplanes as well. If the ash gets into the airplane engines it can stop the whole plane, causing the plane to crash. When the ash in the plane engines solidify it creates crystal. Volcanic ash can also drop worldwide temperatures.
Volcanic ash also affects and destroys plant life leading to starvation in animals. It can also contaminate drinking water. Roofs can also be broken from the weight of the ash. Power lines can also be broken.
This is a picture of Mount Tambora
The Earth is divided into four layers. Magma is found in the mantle layer.