How do you know about volcano ? Here are Top Ten interesting facts about volcanoes. Some of them, you have known and others you may not know clearly. Let’s read the following information to understand about volcanoes.
Top ten Interesting facts about volcanoes
Fact 1: Three major kinds of volcanoes.
In facts about volcanoes 1 Although all volcanoes are made from hot magma that reaches the surface of the Earth, there are three different kinds namely Shield, Stravo and Cinder.
Cinder volcanoes are the most common type of volcano also called scoria cones. They may occur as single volcanoes or as secondary ones on the sides of Stravo volcanoes and shield volcanoes.
Stravovolcanoes are also called composite volcanoes because they are built of layers of lava flow, ash and blocks of stone. They are larger than cinder cones rising up to 8,000 feet.
Shieldvolcanoes are huge and are built of very thin lava spreading out in all directions from a central vent. They have lava flows which flow dozens of kilometers downward the sloping flanks.
Fact 2: Volcanoes erupt because magma escapes from beneath the Earth’s crust.
Surely, you will be surprised when knowing that about 30 kilometers beneath your feet is the Earth’s mantle. This region contains superhot rock that can squeeze out and the huge bubbles of liquid rock are called magma chambers. This magma is lighter than other rocks and it is called magma when it is under the ground and lava when it erupts onto the surface.
Fact 3: Volcanoes are active, dormant or extinct.
Facts about volcanoes 3 is an active volcano is one that currently vents lava or gases. A dormant volcano is one that has erupted in past and still has the risk of erupting again. An extinct volcano is one that people think it will not erupt again.
Fact 4: Volcanoes can grow quickly.
Some volcanoes can be formed from thousands of years, others can grow overnight. For example, Cinder cone volcanoes, Paricutin occurred in a Mexican cornfield in 1943. Within a first week, it was 5 meters tall and by the end of 1943, it was more than 336 meters tall. In 1952, Paricutin’s eruption ends at height of 424 meters
Fact 5: 20 volcanoes are erupting now.
There are about 20 active volcanoes which exist around the world. In recent year, 50 to 70 volcanoes erupted and 160 ones died completely in the last decade. According to geologists, there is 1, 3000 volcanoes erupted in the last 10,000 years. Among that, three quarters of volcanoes take place underneath the ocean and nobody knows about it at all.
Fact 6: Volcanoes are dangerous.
Although we knew about that, many people died due to volcanoes. Some dead volcanoes and can relive at any time. Some typical examples are Krakatoa volcano erupted in 1883 and killed 36,000 people; Vesuvius volcano erupted in 79 AD, it killed 16,000 people and buried the towns of Pompeii and Herculaneum. According to geologists, volcanoes have a series of hazards such as lava flows, ash fall, pyroclastic that relate to different dangers or risks.
Fact 7: Supervolcanoes are really dangerous.
Geologists usually measure the volcanic eruption by using the Volcanic Explosivity Index which can measure the amount of material released. Toba was the largest explosion which was estimated to cubic kilometers of material and have been erupted 73,000 years ago. It created a caldera that was 100 kilometers long and 30 kilometers wide. Toba was a supervolcano in the world that was considered an 8 on the VEI.
Fact 8: The tallest volcano in the Solar System is not on Earth.
In facts about volcanoes 8, the tallest volcano in the Solar System is not on the Earth anymore, but it is on Mars. Olympus Mons is a giant shield volcano on Mars which can rises to 27 kilometers in height and 550 kilometers in width. Many scientists think that Olympus Mons Volcano will happen on a larger scale because there is no plate tectonic on Mars. Only a hotspot also builds the volcano up bigger and bigger.
Fact 9: What are tallest volcanoes in the world.
The tallest volcano on Earth is Mauna Kea located in Hawaii with 4,207 meters in height. Following it, Mauna Loa is also a volcano on Earth with 4,169 meters in height.
Facts about volcanoes 10 : The Chimborazo is the most distant point from the center of the Earth.
Nowadays, many people think that the peak of Mount Everest is the most distant from the center of the Earth, but the truth is completely contrary. In facts, it is the Chimborazo volcano in Ecuador. The reason is why the Earth’s equator is spinning in space. Points at the North Pole or the South Pole are closer from the center of the Earth than ones at the equator. And Chimborazo it is very close to the Earth’s equator.