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tsunami

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by

Savannah De Oliveira

on 29 August 2011

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Transcript of tsunami

Tsunami How A Tsunami Affects The Lithosphere How A Tsunami Affects The Biosphere How A Tsumani AffectsThe Hydrosphere. Japan Tsunami Devstated Areas In Japan The wave levels rise temporarily. As tsunamis are caused by earthquakes caused by the movement of tectonic plates, the tectonic plates cause the seafloor near the plate boundary to rise, and the seafloor to deepen. This causes a sudden withdrawal of the sea just before the tsunami wave.

The water becames polluted because the waves pull all the destructive waste, sewages and industrial chemicals and solid and liquid waste back into the ocean. this causes many freshwater supplies to be poisened.

The hydrosphere may also become more oxygenated because of the churning of the water and receive more debris. The lithosphere is the solid, rocky layer covering the entire surface of the planet, this is made up of the crust and the hard uppermost mantle. The lithosphere ranges in thickness from 50 - 200 km and is divided into tectonic plates with boundaries where plates collide, diverge, or grind past each other.
When the waves come crashing to land, it gathers rocks and sand along the way and deposits it on other parts of the land. This erodes the Earth. The biosphere is all the living things all plants and animals in the world, also known as the global ecosystem.
Anything that lives on land in the way of a tsunami has a very good chance of dying. If slammed into a wall of cars or a home many creatures lose their lives like this during a Tsunami Where is the:
Lithosphere
Biosphere
Atmosphere
Hydrophere After the Tsunami washed everything away Cars washed out of the 'carpark' Animals affected by tsunami's Tsunami waves Destructing everything in its path, the biggest earthquake to hit Japan in 140 years struck the north-east coast of the island country, triggering a 10-metre tsunami wave. This resulted in the loss of thousands of lives and devastated entire towns. The tsunami spread across the Pacific, and warnings were issued and evacuations carried out. In many countries bordering the Pacific, including the entire Pacific coast of North and South America from Alaska to Chile, however while the tsunami was felt in many of these places, it caused only relatively minor effects. Chile's section of Pacific coast is one of the furthest from Japan, at about 17,000 km away, but still was struck by tsunami waves 2 m high. A wave height of 38.9 meters was estimated at Omeo peninsula, Miyako city, Iwate prefecture.

Triggered by the fifth most powerful earthquake to hit the world in the last century, the tsunami left a trail of destruction. Boats, cars and homes were tossed around like toys in the water. Trains were reported missing.The port city of Sendai, including its airport, felt the full fury of the muddy wall of water. Reaching higher ground or the nearest roof was literally a matter of life or death. As disaster struck, ports were shut and power to millions of homes and businesses was lost. Dozens of fires were sparked along the coast, including at industrial sites. Imapact on Society and the Environment Technology used in a Tsunami The Tsunami Alarm System receives earthquake and tsunami warning information from a multiplicity of seismic measuring stations and tsunami warning stations from different countries all over the whole world.
Equipment used to detect tsunamis is called a Richter scale. These tell us how intense the wave is that might be approaching. By Savannah De Oliveira
9H How A Tsunami Affects The Atmosphere The force of a tsunami will generally not affect the atmosphere. Unless the wave damages gas pipes of sewages, then there should be no harm to the atmosphere. If it does occur that the Tsunami wave hits a gas pipe which starts to leak into the atmosphere this will then have a long term effect on the atmosphere and the Ozone layer. Gases in the atmosphere
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