Q:

What instruments are used to measure earthquakes?

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Quick Answer

The seismograph and the seismoscope are the two main instruments used to measure the strength of earthquakes. The seismoscope is a simple instrument that measures the time that an earthquake takes place. The seismograph records the motion of the ground during an earthquake.

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What instruments are used to measure earthquakes?
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Full Answer

A seismograph's main component is a hanging mass — as heavy as 1,000 pounds — that is connected to a pen, and this large pendulum is situated just above a paper surface. When the ground moves, so does the paper, which rubs against the pen and marks the movement. Seismographs are isolated and connected to bedrock to ensure that the data they receive is not affected by the movement of surrounding objects. Advanced technology improves the accuracy of the seismograph and makes it sensitive to minute ground movements.

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Related Questions

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    What instruments are used to predict earthquakes?

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    As of 2015, there are no instruments available that can actually predict an earthquake, but instruments used to detect earthquakes include creepmeters, strainmeters, tiltmeters and pore pressure monitors. These tools are used by the United States Geological Survey in fault lines and volcanoes in the United States. Each tool has a unique and equally important role in helping seismologists determine when earthquakes occur.

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    How kids can make seismographs?

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    What is the difference between a seismogram and a seismograph?

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    How does a seismograph work?

    A:

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