Q:
# What Two Scales Are Used to Measure Earthquakes?

**Two of the most common methods used to measure earthquakes are the Richter scale and the moment magnitude scale.** The Mercalli scale also measures the effects of an earthquake at different locations.

The Richter scale calculates the strength of an earthquake based on measurements of the amplitude of the largest wave recorded on a seismometer as well as the distance between the earthquake and the same seismometer. It was developed to measure earthquakes in California.

The moment magnitude scale is the preferred scale because it covers a wider range of magnitudes and can be applied globally. The scale is based on the earthquake's moment release, a measurement that combines the distance a fault moved and the amount of force required to move it.

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Q:
## What Is the Difference Between the Richter and Mercalli Scales?

A: The difference between the Richter and Mercalli scales, both intended to measure earthquake severity, is that the Richter scale is a mathematical scale bas... Full Answer >Filed Under: -
Q:
## What Is the Richter Scale?

A: The Richter scale is used to quantitatively measure the magnitude of an earthquake. This tool was devised by the seismologist Charles F. Richter in 1935. Full Answer >Filed Under: -
Q:
## How High Does the Richter Scale Go?

A: The Richter scale does not have an upper limit. The Richter scale is a logarithmic representation of the amount of energy released by an earthquake, or its... Full Answer >Filed Under: -
Q:
## What Is the Formula for Determining the Difference in Intensity Between Two Richter Scale Values?

A: The Richter scale is logarithmic. Each whole-number jump indicates a tenfold increase in wave magnitude and a 31.7 increase in energy released. For example... Full Answer >Filed Under: