7 Compelling Facts About the Earthquakes

7 Compelling Facts About the Earthquakes

Due to the sudden release of energy in the earth crust, the shaking of the earth surface takes place and refers to as earthquake. The shaking did not directly kill the humans. The demonizing of the infrastructure made by human causes the casualty. The earthquakes are measured with the help of seismometers.

It is estimated that more than five lakhs earthquakes happen every year and many are not noticed. But the frequencies of occurrence of larger earthquakes are lower.

There are mainly three types of the seismic wave they are the Longitudinal or p Waves, transverse or S waves and surface wave which is often referred to as Rayleigh or love waves. Until recently there is no equipment, which can predict the precise timing of earthquake

Recently the occurring of earthquake is more frequent than the past. Geologists are predicting that the melting of the glacier is raising the sea level and causing the disturbance in pressure of the tectonic plates.

Interesting Facts about Earthquake

1. Causes of Earthquake

Earthquake is caused by a number of factors like that of tectonic disturbance, movement of magma in volcanoes, anthropogenic activities like the giant nuclear explosion, etc.

2. Measuring Scale

The measuring scale of an earthquake varies from different countries around the globe. The widely used scale is the Richter magnitude Scale that was developed by Charles F. Richter in 1935.  The earthquake above 7 is the can be called the destructive earthquake. The range of Richter scale is from 0 to 9 although the upper limit does not present and measure in logarithmic scale. It means the earthquake with Richter scale of 8 is many times higher than that of 7.

3. Epicenter

This is the place above the origin of the earthquake where the massive destruction is often experienced.

4. Tsunami

Tsunamis are the large ocean wave produced by the seduction of ocean floor due to the earthquake. The immense large wave has the capacity to wipe out the beach.

5. Foreshock and Aftershock

A foreshock is the minor tremor felt before the earthquake. Aftershock is the sock observed after the main earthquake happens. Aftershock is dangerous then foreshock because of the fact that aftershock causes the huge demonization by damaging the structure previously made fragile by the main shock. Usually, after the large earthquakes, hundreds of foreshock occurs for months.

6. Largest Earthquake

The largest earthquake even recorded was in Chile in 1960 with the magnitude of 9.5.

7. Deepest Earthquake

It is estimated to occur up to 750 kilometers beneath the earth crust. This mainly occurs at the plate boundaries.


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