How Earthquakes are measured

How Earthquakes are measured:

The Richter scale is used to measure the amount of energy released in a given earthquake. The Richter scale's reading will not be affected by the how far the observer is from the quake, although the perceived strength will be larger near to the epicenter and generally decrease as the distance increases. Richter readings are helpful in comparing earthquakes that occur in different places and at different times. There are many other factors that contribute to the damage, such as the building construction, underlying rocks, and poulation density. The Richter reading by itself does not give enough information to tell what the effects will be in any particular place.However, usually, the larger the Richter reading, the greater the damage will be close to the epicenter., 7 and 8 will cause a lot of damage, 5 or 6 will be enough to cause some damage and 3 or 4 will cause a mild shaking