What are the pros and cons of the mercali scale?

The Mercalli scale measures the intensity of an earthquake based on its observed effects on people, buildings, and the Earth's surface. A key advantage is its ability to provide qualitative assessments that reflect human experiences and damage levels in specific locations. However, its subjective nature can lead to inconsistencies and variations in reports, as different observers may perceive the same event differently. Additionally, the scale lacks a quantitative measure of the earthquake's energy release, making it less useful for scientific analysis compared to the Richter or Moment Magnitude scales.