Earthquakes, volcanic eruptions, cyclones and sandstorms are some of the most powerful natural disasters. The reasons for these massive calamities could be a natural process of Earth's changing demographics or due to man made activities. Either way, these calamities unleash their powers in unimaginable ways and can leave a trail of destruction.
Earthquakes and volcanoes have a close relationship and often exhibit their activity simultaneously. Tectonic plates found beneath the Earth's are responsible for triggering both these disasters. These plates have been moving since time immemorial and are continuing to move at a slow rate on the Earth's mantle. These movements are responsible for merging or drifting numerous countries and continents for over thousands of millennia now. Because each plate has its own speed of movement, a considerable amount of magma is generated over time on the plate's boundaries. When two plates collide or break apart and move away, a lot of pressure is generated on the Earth's mantle. When Earth is not able to take in any more pressure, it releases this force in the form of seismic movements or earthquakes. A mild tremor or earthquake is felt when two plates move away while stronger ones with a magnitude of over seven on the Richter scale are observed when two plates collide at a massive speed and force.
Volcanoes on the other hand are also caused due to plate movements. The constant build up of magma on the earth's mantle will lead to a build of pressure. An excess pressure will be released through the earth's surface into the environment as volcanic eruptions filled with magma, gases and other chemicals.
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Kum Martin is an online leading expert in global warming prevention. He also offers top quality articles like:
Trees in Rainforest, Global Warming Facts
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