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Richter scale
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Anderson-Wood torsion pendulum seismograph
The video thumbnail image shows a woman trying to break a bundle of pasta strands as part of a scientific demonstration.
How the Richter scale measures earthquakes
seismograph data
Learn how the Richter scale measures magnitude and the Mercalli scale measures intensity of an earthquake
For Students
Richter scale summary
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Composite image - Katsushika Hokusai The Great Wave off Kanagawa, color woodcut print, with background of Seismograph recording seismic activity and detecting an earthquake
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Richter scale: Media

seismology
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https://www.britannica.com/science/Richter-scale/images-videos

Videos

How earthquakes are measured: Demonstrating magnitude
We're picking up earthquake vibrations.
Video: Encyclopædia Britannica, Inc.
How the Richter scale measures earthquakes
The Richter scale and how it measures earthquake magnitude. The Richter scale calculates...
Video: Encyclopædia Britannica, Inc.
Learn how the Richter scale measures magnitude and the Mercalli scale measures intensity of an earthquake
The Richter scale measures the magnitude of earthquakes, and the Mercalli scale measures...
Video: Encyclopædia Britannica, Inc.

Images

Anderson-Wood torsion pendulum seismograph
Schematic diagram of a 1924 Anderson-Wood torsion pendulum seismograph, the type...
Encyclopædia Britannica, Inc.
seismograph data
Seismic wave data being recorded by a seismograph during an earthquake.
© Wf Sihardian—EyeEm/Getty Images
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