quakes 3

Throughout history, man has made many advancements. These advancements have been made to make life easier. The one thing man can't do is to control Mother Nature. Mother Nature can cause many things such as earthquakes. There are generally three kinds of faults: normal, reverse, and strike-slip. By careful observation and measurement, geologists, acting like detectives, can tell how much a fault moved, which part went up, which part went down, and which way the …

…Richter's scale was slightly revised because of the fact that there are now more sophisticated ways of measurement and the scale didn't cover the higher magnitude rating. There is a twelve-point scale of intensity that grades the quake by describing the kinds of damage and other effects caused by it. You might say that the Richter scale measures the actual power of the earthquake, while the modified Mercali scale measures the earthquake's effect on humans.