# What does the Richter scale measure and how does it work?

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**Richter scale**is a standard**scale**used to compare earthquakes. It is a logarithmic**scale**, meaning that the numbers on the**scale**measure factors of 10. So, for example, an earthquake that measures 4.0 on the**Richter scale**is 10 times larger than one that measures 3.0.A.

### What is a 1 on the Richter scale?

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**Richter magnitude scale**is a**scale**of numbers used to tell the size of earthquakes. Charles**Richter**developed the**Richter Scale**in 1935. His**scale**was based on the seismogram measured by a particular type of seismometer at a distance of 100 kilometres (62 mi) from the earthquake.#### What is the difference in energy released between a 6 and a 7 on the Richter scale?

The**Richter scale**is used to rate the**magnitude**of an earthquake -- the amount of**energy**it**released**. That is, the wave amplitude in a level**6**earthquake is 10 times greater than in a level 5 earthquake, and the amplitude increases 100 times**between**a level**7**earthquake and a level 9 earthquake.#### Where do most of the world's earthquakes occur?

Earthquakes occur all the time all over the world, both along**plate edges**and along faults. Most earthquakes occur along the edge of the oceanic and**continental plates**. The earth's crust (the outer layer of the planet) is made up of several pieces, called plates.#### What is the Richter Scale for Children?

Scientists measure earthquakes using the**Richter scale**. This**scale**, invented in 1934 by California scientist Charles**Richter**, measures the**magnitude**of an earthquake, and the result is a number from 0 to 10, as measured on a machine called a seismograph.

Updated: 21st November 2019