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What is the definition of erupt for kids?
Kids Definition of erupt 1 : to send out lava, rocks, and ash in a sudden explosion The volcano erupted. 2 : to burst out in a sudden explosion Lava erupted from the volcano.
How do you describe an eruption?
Definition: A volcanic eruption occurs when magma is released from a volcano. Volcanic eruptions can be quite calm and effusive, or they can be explosive. Effusive eruptions produce lava flows, while explosive eruptions produce ash and pyroclastic density currents.
What is the best definition of eruption?
noun. an issuing forth suddenly and violently; outburst; outbreak. Geology. the ejection of molten rock, steam, etc., as from a volcano or geyser. something that is erupted or ejected, as molten rock, volcanic ash, or steam.
What is a volcanic eruption definition?
A volcanic eruption is when lava and gas are released from a volcano—sometimes explosively. The most dangerous type of eruption is called a ‘glowing avalanche’ which is when freshly erupted magma flows down the sides of a volcano.
What is the sentence of eruption?
1 The eruption of a volcano is spontaneous. 2 The place was recently visited by a serious volcanic eruption. 3 It was the biggest eruption of Vesuvius for some years. 4 The extinct volcano’s eruption would mean a cataclysm for the city.
What is called eruption?
An eruption is an explosion of steam and lava from a volcano. This word is also used for other explosions, such as “an eruption of emotions.” The sudden spreading of a disease could be called an eruption. Eruptions are quick, huge, explosive, and dangerous: they’re never good news.
What causes eruption?
Volcanoes erupt when molten rock called magma rises to the surface. Magma is formed when the earth’s mantle melts. Another way an eruption happens is when water underneath the surface interacts with hot magma and creates steam, this can build up enough pressure to cause an explosion.
Why is a volcanic eruption a natural disaster?
When pressure from the gas and molten rock becomes too great, an eruption occurs. Many volcanic eruptions are also accompanied by other natural hazards, such as earthquakes, landslides, debris flows, flash floods, fires and tsunamis. If you live near a volcano, active or dormant, be prepared to act on short notice.
What are the two main kind of eruption?
There are two types of eruptions in terms of activity, explosive eruptions and effusive eruptions . Explosive eruptions are characterized by gas-driven explosions that propels magma and tephra. Effusive eruptions, meanwhile, are characterized by the outpouring of lava without significant explosive eruption.
What does erupt mean does it mean to burst out?
To burst forth; to break out, as ashes from a volcano, teeth through the gums, etc.; as, the third molar erupts late in most people, and in some persons does not occur at all. Etymology: [See eruption.] Etymology: [See eruption.] e-rupt’, v.i. to break out or through, as a volcano.- n.
What is the most explosive type of eruption?
A Plinian eruption is the most explosive of the eruption types. Mt. St. Helens eruption was a plinian eruption. Plinian eruptions are characterized by a very high ash cloud that rise upwards to 50,000 feet (almost 10 miles) high. Very deadly pyroclastic flows are also part of plinian eruptions.
What was the biggest volcanic eruption in history?
On 10 April 1815, Tambora produced the largest eruption known on the planet during the past 10,000 years. The volcano erupted more than 50 cubic kilometers of magma and collapsed afterwards to form a 6 km wide and 1250 m deep caldera.