Shield volcano mauno loa7/25/2023 This type of explosion is dangerous and is typically seen in strombolian type of volcanic eruption. When the lava blasts into air, it breaks into small pieces called tephra which can range from tiny pieces to large boulders. Consequently, the lava releases out with force and leads to large-scale explosion. On the other hand, if the magma is thick and sticky, it makes harder for the gases to escape on a consistent basis and this builds up pressure until the breaking point is achieved. The mount Mauna Loa is one such example of less explosive eruption. Running magma makes less-explosive eruptions which are relatively less dangerous as gasses escape in a runny lava which leads to steady but gentle flow of lava from the mouth of the volcano. The intensity of the eruption depends on the composition of the magma. This magma forces its way upwards through the cracks and fissures on Earth’s crust and is called lava. This magma gets collected in the magma chambers which are found at a relatively shallow depth between 6 to 10 km under the surface. Starting from the core of Earth, the geothermal gradient and the amount of temperature increases with increasing depth which indicates that heat forms in the deep interior of Earth, which melts the rocks and creates molten rocks, known as magma. The world’s five most active volcanoes are Sangay in Ecuador, Santa Maria in Guatemala, Stromboli in Italy, Mount Etna in Italy, and Mount Yasur in Vanuatu. There exist three main types of volcanoes such as cinder cone volcanoes, composite volcanoes, and shield volcanoes. Most of them are even found under water like the midocean ridge, etc. On Earth, the volcanoes are associated with the tectonic plates that are diverging or converging. The eruption was so huge that night sky was covered with red light.Ī volcano is a rupture or an opening in the top of Earth’s crust (mountain) through which hot lava, volcanic ash, and gases escape from the magma chamber on to the surface of Earth. Mauna Loa erupted after 38 years on Novemspewing ash and debris and covered the night sky of the Hawaiian island. This volcano has seen eruption for more than 7,00,000 years and emerged above the sea level 4,00,000 years ago. Its peak is about 38 metres high that is lower than its neighbour Mount Kea. It forms an active shield volcano with some gentle slopes with a volume estimate of 75,000 cubic kilo metres. It is said to be historically the largest volcano on Earth. It is the largest subaerial volcano compared to the subaqueous volcano and is at an elevation of 13,679 feet. Mauna Loa (means long mountain) is one of the five active volcanoes that form in the island of Hawaii in the Pacific Ocean.
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