Volcanic Eruption

Geography

Introduction

Hollywood disaster movies are a popular genre of film. This article will explore the realism of the scenes shown in the film Volcano which was produced in 1997. In this film it will talk about the reason why the volcano erupt and how they measure it, it will also be talking about what happens when a volcano erupts. Also in this article i'll be comparing a real life volcano eruption to a movie. I will also be talking accidents that occurred and how volcanos work and erupt. I'll be talking about the dangers and warnings that will show a volcano is about to erupt.

Location

The location where this type of hazard usually occurs is in New Zealand, Papua New Guinea, Indonesia and the Philippines. The map below shows the normal location of this type of hazard. Volcano mostly erupt there is because Active volcanoes generally occur close to the major tectonic plate boundaries.

Many are located along the Earth's plate boundaries. Active volcanoes are rare in Australia because there are no plate boundaries on this continent. However, there are two active volcanoes located south west of Perth on the Australian territories.


The film '' It's hotter than hell Volcano'' was filmed at Los Angeles. In Los Angeles volcanos do erupt there but not so frequent. Few of the world biggest volcano eruption occurred in Los Angeles.

How does volcano's work in reality

Although many volcanos look different they each erupt because of the same reason. The magma from beneath the earth reaches the surface and erupts as lava, ash and rock. Each volcano has a different structure. Although the Earth’s mantle is solid rock, it’s under high pressures and temperatures, and this causes rock to melt and squeeze out of cracks in the rock. Causing the lava to come out and burn everything. Another thing is that in reality when a volcano is about to erupt the ground around starts to shake and starts to heat things up around them. For example a hot spring, if a hot spring was near a volcano the water temperature will start to rise and the fact that the hot spring water is already hot if it were to rise you could get burn or steamed to death.

How does your film clip differ from reality

Compare to the movie and reality it is actually quite similar since the fact that before a volcano erupts the ground shake and in the movie the ground also shakes also the fact the the water temperature in the movie rises like how it does in reality when a volcano is about to erupt. A fact that isn't true in the clip is that the way they stopped lava. The way they did it was to hard to assemble and not possible. Stopping lava and leading it to a different direction is harder and having someone that isn't so experience lead it all also isn't a realistic fact. Another thing is that when the rocks came falling it doesn't usually cause that much explosions it only causes damages to buildings and could injure people. Another impossible fact is that the fact they were trying to run away from lava and survived. Its true that lava flows quite slowly but you still can't out run it in tunnel.

Case study


Chances Peak, Montserrat, 1995-97:


Montserrat is a small island in the Caribbean. There is a volcanic area located in the south of the island. Before 1995 it had been dormant for over 300 years. In 1995 the volcano began to give off warning signs of an eruption (small earthquakes and eruptions of dust and ash). The volcanos by the south had started to wake up or was about to erupt. It then remained active for five years. The most intense eruptions occurred in 1997.


During this time, Montserrat was devastated by pyroclastic flows. Pyroclastic flows are basically a fast-moving current of hot gas and rock. The small population of the island which was around 11,000 people was evacuated in 1995 to the north of Montserrat as well as to neighbouring islands.


Despite the evacuations, 19 people were killed by the eruptions as a small group of people chose to stay behind to watch over their crops.

Volcanic eruptions have destroyed large areas of Montserrat. The capital, Plymouth, has been covered in layers of ash and mud. Many homes and buildings have been destroyed, including the only hospital, the airport and many roads.

The graphic shows the progress of the eruption and its impact on the island.


This volcano eruption wasn't really different compare to the others. It gave off warning that it was going to erupt, and when it did it caused a lot of damages and death. Also since quite a few volcanos were all located a specify area it was even more dangerous as when one volcano erupted so did the others.

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Conclusion

In conclusion I think that volcano's are very dangerous yet interesting at the same time. There's so much about volcanos I didn't know about and the fact that I just learnt how it works and that there are different types of volcanos is very fascinating. I also learnt a lot about how it erupts and signs that appear when volcanos are about to erupt. I also learnt that many accident happens over the years and is very devastating. The fact that there's so many eruption a year is very scary. Not to mention that the fact that in films they actually base it quite realistically to the actually hazard. When I first saw the movie clip I thought that it wasn't true and the fact that getting burn to death due to water temperature rising by a lot because of the volcano is impossible but in reality it can actually happen.