Essays On Volcano Eruption

Essays On Volcano Eruption-19
Shield volcanoes do not grow to a great height, and the layers of lava spread out to give the volcano gently sloping sides. Volcanoes are made when two tectonic plates come together.Shield volcanoes can produce huge areas of basalt, which is usually what lava is when cooled. When these two plates meet, one of them (usually the oceanic plate) goes under the continental plate. Afterwards, it melts and makes magma (inside the magma chamber), and the pressure builds up until the magma bursts through the Earth's crust.Pinatubo erupted and a building was buried by the lahar.

Shield volcanoes do not grow to a great height, and the layers of lava spread out to give the volcano gently sloping sides. Volcanoes are made when two tectonic plates come together.Shield volcanoes can produce huge areas of basalt, which is usually what lava is when cooled. When these two plates meet, one of them (usually the oceanic plate) goes under the continental plate. Afterwards, it melts and makes magma (inside the magma chamber), and the pressure builds up until the magma bursts through the Earth's crust.Pinatubo erupted and a building was buried by the lahar.

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Shield volcanoes are built out of layers of lava from continual eruptions (without explosions).

Because the lava is so fluid, it spreads out, often over a wide area.

Mauna Loa is part of the five volcanoes on Hawaii's 'Big Island'. The largest recent eruption from Mauna Loa left a lava trail 51 kilometres (32 miles) long.

The most recent time this volcano erupted was in 1984. Like all the other Hawaiian volcanoes, Mauna Loa was created by the movement of the Pacific tectonic plate which moved over the Hawaii hotspot in the Earth's mantle. The lava and pyroclastic material (clouds of ash, lava fragments and vapor) that comes out from volcanoes can make many different kinds of land shapes. These volcanoes are formed by fluid low-silica mafic lava.

The engines are thought to have shut down because the ash turned to a glass coating, which fooled the temperature sensors and esulted in an auto-shutdown.

This incident put 245 people in danger, but they all survived.

Big felsic lava flows are uncommon, but have travelled as far as 15 km (9.3 mi). Those volcanoes which have not erupted in historical times are called extinct.

Two famous stratovolcanoes are Japan's Mount Fuji, and Vesuvius. It is 2 km below the sea on an underwater plateau known as the Shatsky Rise. The previous record-holder, Mauna Loa in Hawaii, is still the largest volcano on land.

Volcanoes are formed by the movement of tectonic plates. When a volcano is active, materials come out of it.

The materials include lava, steam, gaseous sulfur compounds, ash and broken rock pieces. Some volcanic eruptions blow off the top of the volcano.

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