An earthquake is the shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's lithosphere that creates seismic waves. It is also known as a quake, tremor or temblor.
The theory of Plate Tectonics states that the lithosphere consists of several individual segment called plates. About twenty such plates have been identified in which Pacific plate is the largest plate and Juan de Fuca Plate is the smallest one. Plates margin are three types- Divergent, Convergent and Transform fault boundaries. Most of the seismic activity occurs along these dynamic margins.
The United States Geological Survey listed top 10 Deadliest Earthquakes in the World which are given below:
Top 10 Deadliest Earthquakes in the World
1. Shensi, China
Deaths: About 830,000
Date and Year: January 23, 1556
Magnitude: 8
Epicentre: Shaanxi province (formerly Shensi), China
2. Tangshan, China
Deaths: Official casualty figure is 255,000 deaths. Estimated death toll as high as 655,000.
Date and Year: July 27, 1976
Magnitude: 7.5
3. Aleppo, Syria
Deaths: About 230,000
Date and Year: August 9, 1138
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4. Sumatra, Indonesia
Deaths: 227, 898
Date and Year: December 26, 2004
Magnitude: 9.1
5. Haiti
Deaths: 222,570
Date and Year: January 12, 2010
Magnitude: 7.0
6. Damghan, Iran
Deaths: 200,000
Date and Year: 22 December, 856
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7. Haiyuan, Ningxia , China
Deaths: 200, 000
Date and Year: December 16, 1920
Magnitude: 7.8
8. Ardabil, Iran
Deaths: 150,000
Date and Year: March 23, 893
9. kanto, Japan
Deaths: 142, 800
Date and Year: September 1, 1923
Magnitude: 7.9
10. Ashgabat, Turkmenistan
Deaths: 110, 000
Date and Year: October 5, 1948
Magnitude: 6.5
When disasters like earthquakes, wildfires, hurricanes, floods or droughts happen then we still have no way to eliminate. We cope as best we can by fortifying ourselves against the danger with building codes and levees, and by setting aside money to clean up afterwards.
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