GEOLOGY

Detailed explanation-1: -The power of an earthquake is expressed in terms of magnitude on a scale called the Richter scale. It is also known as the Richter magnitude scale. This was developed by Charles F. Richter in 1935.

Detailed explanation-2: -The first widely-used method, the Richter scale, was developed by Charles F. Richter in 1934. It used a formula based on the amplitude of the largest wave recorded on a specific type of seismometer and the distance between the earthquake and the seismometer.

Detailed explanation-3: -Note: The Modified Mercalli scale is designed to describe the effects of an earthquake, at a given place, on natural features, on industrial installations and on human beings. The intensity differs from the magnitude which is related to the energy released by an earthquake.

Detailed explanation-4: -Mer·cal·li scale mer-ˈkä-lē-(ˌ)mər-: a scale of earthquake intensity ranging from I for an earthquake detected only by seismographs to XII for one causing total destruction of all buildings.