Only seismographs can determine the first degree;
2nd degree is very light,
Third degree is light, most people do not hear that there is an earthquake,
Grade 4 is moderate, people in their homes hear;
Grade 9 is very destructive, stone buildings are destroyed;
10th degree houses collapse, railways, water, gas pipes can be bent and broken:
11th degree bridges, dams are destroyed, the ground is opened, crevices, water gush;
The 12th degree is catastrophic, nothing survives, the shape of the earth changes, new lakes can occur, the rivers' beds can change.
Losses of life in earthquakes are often caused by building defects. Especially the structures in the settlement areas located in earthquake zones should be earthquake resistant.
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Not every earthquake of the same degree can cause the same loss of life and destruction everywhere. Status of buildings, population density, structures, etc. plays an important role in this matter.
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