What Is Seismograph?

Answer

A seismograph is an instrument used to measure and make a record of any occurring vibrations in the earth's crust. These might be earthquakes, tremors or aftershocks. You can find more information here: http://earthquakescanada.nrcan.gc.ca/info-gen/smeters-smetres/seismograph-eng.php
2 Additional Answers
Ask.com Answer for: what is seismograph
seis·mo·graph
[sahyz-muh-graf, -grahf, sahys-]
NOUN
1.
any of various instruments for measuring and recording the vibrations of earthquakes.
Source: Dictionary.com
A seismograph is a device used to study earthquakes. You've probably heard on the news when they report about the strength of an earthquake based on a number system. Seismographs help us to determine the strength of those earthquakes.
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