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Volcanoes have lava in them that is really hot and dangerous to be around or touch.There lava builds up and makes a burst that is called an eruption.Volcanoes can be found in many different places but are usually found around the Ring of Fire.They also are found on the borders of places because they have more shifting plates. There are many dangers and risks with being around one. Bright red lava flows in Hawaii can get as hot as 1,165 F, with the glowing orange flows getting hotter than 1,600 F, according to USGS. Volcanoes are openings in the Earth’s surface. When they are active they can let ash, gas and hot magma escape in sometimes violent and spectacular eruptions.
Common volcanic gases include water vapor, carbon dioxide, sulfur dioxide, hydrogen chloride, hydrogen fluoride and hydrogen sulfide. In an eruption, gases and Volcanoes are found on the ocean floor and even under ice caps, such as those found in Iceland.While we certainly have some big volcanoes here on Earth, the biggest known volcano in our solar system is actually on Mars. Its name is Olympus Mons and it measures a whooping 600km (373 miles) wide and 21km (13 miles) high. A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur.More than 80% of the earth’s surface is volcanic in origin. The seafloor and some mountains were formed by countless volcanic eruptions. Gaseous emissions from volcano formed the earth’s atmosphere.Mount Tambora, also called Mount Tambora, Indonesia Gunung Tambora, volcanic mountain on the northern coast of Sumbawa island, Indonesia, that in April 1815 exploded in the largest volcanic eruption in recorded history. It is now 2,851 metres (9,354 feet) high, having lost much of its top in the 1815 eruption. The volcano remains active; smaller eruptions took place in 1880 and 1967, and episodes of increased seismic activity occurred in 2011, 2012, and 2013.
Tambora’s catastrophic eruption began on April 5, 1815, with small tremors and pyroclastic flows. A shattering blast blew the mountain apart on the evening of April 10. The blast, pyroclastic flows, and tsunamis that followed killed at least 10,000 islanders and destroyed the homes of 35,000 more. Before its eruption Mount Tambora was about 4,300 metres (14,000 feet) high. After the eruption ended, a caldera spanning some 6 km (3.7 miles) across remained.Many volcanologists regard the Mount Tambora eruption as the largest and most-destructive volcanic event in recorded history, expelling as much as 150 cubic km (roughly 36 cubic miles) of ash, pumice and other rock, and aerosols—including an estimated 60 megatons of sulfur – into the atmosphere. As that material mixed with atmospheric gases, it prevented substantial amounts of sunlight from reaching Earth’s surface, eventually reducing the average global temperature by as much as 3 °C (5.4 °F).
The immediate effects were most profound on Sumbawa and surrounding islands. Some 80,000 people perished from disease and famine, since crops could not grow. In 1816, parts of the world as far away as western Europe and eastern North America experienced sporadic periods of heavy snow and killing frost through June, July, and August. Such cold weather events led to crop failures and starvation in those regions, and the year 1816 was called the “year without a summer.” Volcanoes are very deadly and harm a lot of things. Indonesia is where very deadly volcanoes happen.There are more than 500 active volcanoes in the world. More than half of these volcanoes are part of the “Ring of Fire,” a region that encircles the Pacific Ocean. Active volcanoes in the U.S. are found mainly in Hawaii, Alaska, California, Oregon and Washington, but the greatest chance of eruptions near areas where many people live is in Hawaii and Alaska.The lava can be stopped by a wall that is made out of materials that can’t burn or melt. So the lava can melt or burn through it. So the lava will be contained until it drys. Then it can’t flow anymore. It will help the farmers keep the crops from getting burned and keep people from dying.
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