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Earthquakes are measured using seismographs and the Richter Scale. The scale measures the largest seismic wave produced by an earthquake.

Richter magnitude scale - Wikipedia

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...

Measuring the Size of an Earthquake

earthquake.usgs.gov/learn/topics/measure.php

Seismic waves are the vibrations from earthquakes that travel through the Earth; ... increase in magnitude represents a tenfold increase in measured amplitude; ...

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  ...

How Are Earthquakes Measured?

www.amnh.org/explore/news-blogs/on-exhibit-posts/how-are-earthquakes-measured/

Feb 18, 2015 ... Thanks to the scale at which they take place, natural disasters can be challenging to measure. Consider earthquakes: you can't ask how high ...

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 Are Earthquakes Measured? - Live Science

www.livescience.com/32779-measuring-earthquake-magnitude-richter-scale.html

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 ...

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 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.