Thursday, 9 June 2016

Inquiry Term 2

Here is a video of my model:

How does a tsunami Form?

tsunami-geology-2.jpgHave you ever wondered how a tsunami forms?
Tectonic plates and friction are included in the vital process.

tsunami-geology-3.jpgTsunamis can be triggered by earthquakes, volcanic eruptions or underwater landslides. Firstly the plate tectonic forces the oceanic plate into the mantle, then the plates get stuck and friction starts.

The stuck plate continues to descend into the mantle. As a result of this, an accumulation of energy starts (this energy is very similar to the energy stored in compressed springs). The energy in the overriding plate can accumulate for decades even centries.

The energy accumulates in the overriding plate until it moves the frictional forces between the stuck plates. When this happens the overriding plate snaps into a loose position. This impulsive motion is the cause of a Tsunami because it gives an enormous shove to the overlying water, at the same time the inland areas of the overriding plate are lowered.

The moving wave travels out along the ocean basin at the same time water floods the recently lowered shore. A lot of people mistake tsunamis for a single wave but they consist of various waves which are all different shapes and sizes. Tsunami’s can go as high as 30 metres which is as big as a 10 storey building.

Tsunamis are very powerful and can kill a lot of animals and people they also  damage quite a few buildings.

11 Facts about Tsunamis, viewed 23 May 2016

Tsunami Facts, viewed 26 May 2016

Tsunami Geology, viewed 23 May 2016

Tsunami, viewed 25 May 2016

1 comment:

  1. I really like your model it explains how a tsunami is formed quite well