How strong is the earthquake?

The magnitude 7.8 earthquake occurred on April 25 in Nepal, causing more than 2,500 people to die and this number continues to increase. So how strong is the earthquake intensity, how strong can it be to cause such deaths and destruction?

Please see the graphic depicting the power of earthquakes that happened in the world and the damage caused by earthquakes.

Below are the earthquake and its destructive power levels

As of April 30, more than 5,000 people were killed by earthquakes in Nepal

This earthquake is equivalent to 15,000 tons of TNT

There are about 4500 earthquakes ranging from 2-2.9 Richter annually

There are about 2000 earthquakes with a magnitude of 5- 5.9 richter per year

Energy of earthquake 6.7 richter equivalent to 338,000 tons of TNT

The earthquake's magnitude of 7 from the richter is similar to the 31.7 nuclear bomb Little Boy

The 7.6-magnitude earthquake at Tangshan, China claimed the lives of 255,000 people

The 8.3-magnitude earthquake has the equivalent of 38.24 million tons of TNT

The 9-magnitude earthquake is equivalent to 15,933 Little Boy nuclear bombs

A seismic of more than 9 magnitudes is called a powerful earthquake

The energy of the 9.5-magnitude earthquake is equivalent to 80% of the solar energy shining on the earth in 60 seconds

No earthquake has ever reached 10 richter scale, but if so, the energy level released is 1 million million tons of TNT