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## Richter magnitude scale

en.wikipedia.org/wiki/Richter_magnitude_scale

The Richter magnitude scale (also Richter scale) assigns a magnitude number to quantify the ... As measured with a seismometer, an earthquake that registers 5.0 on the Richter scale has a shaking am...

## How Are Earthquake Magnitudes Measured?

www.geo.mtu.edu/UPSeis/intensity.html

There are a number of ways to measure the magnitude of an earthquake. The first widely-used method, the Richter scale, was developed by Charles F. Richter  ...

## Measuring Earthquakes - U.S. Geological Survey

pubs.usgs.gov/gip/earthq1/measure.html

Jan 11, 2013 ... The vibrations produced by earthquakes are detected, recorded, and measured by instruments call seismographs. The zig-zag line made by a ...

## How do scientists measure earthquakes? - Tremor

tremor.nmt.edu/faq/how.html

Magnitude is a measure of the amount of energy released during an earthquake, and you've probably heard news reports about earthquake magnitudes ...

## How we measure earthquakes - CNN.com

www.cnn.com/2015/04/25/tech/measuring-earthquakes/

Apr 28, 2015 ... (CNN) Earthquakes are measured using seismographs, which monitor the seismic waves that travel through the Earth after an earthquake ...

## Earthquake | Seismology, magnitude and other units of measurement

www.sms-tsunami-warning.com/pages/seismology-measurement

Earthquake: Seismology information and definition. Magnitude and other units of measurement of the severity of an earthquake by SMS-Tsunami-Warning.com.

## BBC - GCSE Bitesize: Measurement of earthquakes

www.bbc.co.uk/schools/gcsebitesize/geography/natural_hazards/earthquakes_rev2.shtml

The power of an earthquake is measured using a seismometer. A seismometer detects the vibrations caused by an earthquake. It plots these vibrations on a ...

## How Earthquakes Are Measured - California Department of ...

www.conservation.ca.gov/cgs/information/publications/cgs_notes/note_32/documents/note_32.pdf

Vibrations produced by earthquakes are detected, recorded, and measured by instruments called seismographs. These devices may amplify ground motions ...

Nov 16, 2011 ... Learn how earthquakes are measured. For more details, read NRC's S-T magazine Dimensions.
Aug 19, 2007 ... NASA Sci Files segment explaining how scientists measure the power of earthquakes by using the Richter Scale and the Moment Magnitude ...
Earthquakes are measured using seismographs and the Richter Scale. The scale measures the largest seismic wave produced by an earthquake.

### Measuring the Size of an Earthquake

earthquake.usgs.gov

Apr 7, 2016 ... Because of the logarithmic basis of the scale, each whole number increase in magnitude represents a tenfold increase in measured amplitude; ...

### How Are Earthquakes Measured? - Live Science

www.livescience.com

Aug 20, 2010 ... Today, an earthquake's size is typically reported simply by its magnitude, which is a measure of the size of the earthquake's source, where the ...

### Measuring the size of an earthquake | Earthquakes | Discovering ...

www.bgs.ac.uk

We can determine how big an earthquake is by measuring the size of the signal directly from the seismogram. However, we also have to know how far away the ...