Maya Indians. The Maya Indians were a group of early people who lived in regions from Central America to Mexico.They were a vast and large group and well civilized. The Maya Indians early culture and forms of learning have fascinated archaeologists, Sociologists, and Anthropologists.aya Indians. The Maya Indians were a group of early people who lived in regions from Central America to Mexico.
The difference between the Richter and Mercalli scales, both intended to measure earthquake severity, is that the Richter scale is a mathematical scale based on the measurements of scientific instruments, while the Mercalli scale is based on witness observation and structural damage.
Other similar scales can be used to measure the intensity like the EMS scale, MSK scale, INQUA scale and Shindo scale. The two scales that are more commonly used in America are the Richter and Mercalli scales. Historically, the Mercalli is an earlier scale which dates back to the 19th century. It was later modified by an Italian volcanologist named Giuseppe Mercalli in the early 1990s.