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Why might a major volcanic eruption lead to cooler temperatures over a large area around volcano?
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∙ 9y ago
Dahlia O'Reilly
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How did the 1902 eruption help the fertile soil?
Volcanic ash is rich in nutrients needed by plants. When a volcano erupts, it often spreads ash in a large area around it, fertilizing the soil.
Did the tinakula volcano cause any casualties?
The island that the Tinakula volcano is on is currently uninhabited. The Tinakula volcano eruption of 1971 caused the island to be evacuated. Around 1840, the inhabitants of the island were killed when the volcano erupted.
What is the Volcano Explosivity Index?
The VEI (Volcano Explosivity Index) rates volcanic eruptions based on the volume of ejected material, the height of the eruption plume, and the time duration of the event. The scale runs from 0 (low volume, non-explosive lava flow) to 8 (mega-colossal volcanic explosion, accompanied by seismic events and/or tsunamis). E.g. Mount St. Helens, 1980, had a VEI of 5. Mount Mazama (an exploded volcano that now forms Crater Lake) erupting around 5600 BC, had a VEI of 7.
What do many small earthquakes near a volcano mean?
Increases in seismic activity around a volcano are typically caused by the movement of magma below the surface into a magma chamber. This causes increases in pressure which leads to fracturing to the rock mass around the magma chamber causing small earthquakes. If the pressure continues to build it would ultimately force the volcano to erupt. As such the small earthquakes are potentially a warning sign of an impending volcanic eruption.
What will happen if Mt Rainier erupts?
Even a relatively small eruption at Mount Rainier could melt the snow and ice at the volcano's summit. This could mix with volcanic ash as well as sediment around the volcano, forming mudflows called lahars. These could potentially devastate nearby towns and even the city of Tacoma. The mud could then clog river channels, causing the rivers to back up and flood portions of Seattle.
Why might a major volcano eruption lead to cooler temperatures over a large area around the area?
Because when the volcano erupts it lets all the hot volcanic acid and lava out of the ground making the earth's surface cooler.
How do people respond to a volcanic eruption?
Mainly by re-building the island and making sure the volcano is safe to be around.
Why might a major volcanic eruption lead to cooler temperature over a large area around the volcano?
Blocking of solar radiation from ash in the atmosphere causing less radiation to reach surface cooler temperatures. *I <3 cupcakes!*:)
By What process can the volcanic eruption affect temperatures around the world?
The sulfur cloud that comes out after a volcanic eruption covers the earth's atmosphere, stops much sunlight from reaching Earth, and makes the Earth colder by 2 to 3 degrees Celsius.
What processes can a volcanic eruption affect temperatures around the world?
The sulfur cloud that comes out after a volcanic eruption covers the earth's atmosphere, stops much sunlight from reaching Earth, and makes the Earth colder by 2 to 3 degrees Celsius.
How effect a volcano eruption to people?
Volcanic eruptions usually displace survivors as the area around the volcano is usually rendered uninhabitable. The amount of volcanic ash emitted from the eruption also changes the air quality which can also be dangerous.
Where is volcanic ash found?
Volcanic ash can be found above the crater, around the volcano and even miles and miles away from the volcano, depending on the size of eruption. It will rise up into the sky and then either remain in the sky (for very fine ash particles) and be carried by high-altitude winds around for a certain period of time or fall to the ground almost immediately after the eruption.
Are there signs for the eruption of volcanoes?
Before a volcano erupts, there is normally an increase in earthquakes, you might see some volcanic ash come out, you might see an increase in gas or steam around the volcano, and you might see a change in height or shape of the land around the volcano.
Is a volcanic eruption described as severe or serious?
It depends on the size and generally everything about the volcano. If it is a big volcano with a big eruption, then it would be severe. If it was a dormant volcano with a big eruption then it would also be severe, but if the volcano doesn't harm the general populace then it won't be dangerous at all. Most volcano eruptions would probably be severe though because of the general populace living around it (Hawaii) or because the volcano was dormant for so long, that it was unexpected.(Mt.Helen)
The biggst eruption in new zealand history?
this is the biggest volcano eruption in New zealand
What are the effects and cause of a supervolcanol?
A super volcano is a huge sized volcano that can erupt, the eruption will create crater sized holes around the eruption.
Will the ash cloud around England from the volcano in Iceland clear up for people to come home next week?
I'm not giving false hopes but maybe if there is not a nother volcanic eruption
