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Scientists measure and compare earthquakes by using seismographs on page 18. On page 18 it says "Modern seismographs record their data to a computer and are able to detect a tiny earth tremor thousands of miles away."~Sean Li

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Scientists measure and compare earthquakes by using seismographs on page 18. On page 18 it says "Modern seismographs record their data to a computer and are able to detect a tiny earth tremor thousands of miles away."~Sean Li

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scientist measure earthquakes by using seismograph stations.

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Scientists measure and compare earthquakes by using Seismograph stations. I know this because in the text it said "Seismographs are the instruments that Scientists use to measure earthquake shocks." Another detail that supports my answer is "Modern Seismographs record their data to a computer and are able to detect tiny earth tremor thousands of miles away." This shows that Scientist use Seismographs to measure earthquakes.

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Scientist uses seismographs to measure earthquakes shocks because on page 18-19 it says Seismographs are the instruments that scientist use to measure earthquake shocks, this evidence shows me that scientist uses seismographs to measure earthquake shocks

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Scientists measure earthquakes shocks by using seismographs, an instrument that can find a tremor from thousands of miles away. I know this because on page 18 it stated, "Modern seismographs record data into computers and are able to detect a tremor from thousands of miles away."

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Scientists measure and compare earthquakes by using Seismographs. I know this because on page 19 in the book "earthquakes" it says "Seismographs are the instruments that scientists use to measure earthquake shocks."

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Scientists measure earthquakes with seismographs it says that in page 19.

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Scientists measure and compare   earthquakes by using seismographs. On page 18 it stated "Modern seismographs record their data to a computer and are able to detect a tiny earth tremor thousands of miles away." Also on page 20 it stated "Richter Scale to measure an earthquake's magnitude, the amount of energy it releases." This is how scientists measure and compare earthquakes.

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They used special equitment to measure the descrution and how violent it is to compare earthquakes.

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They use the chart to show how strong a earthquake can be. It is called the Richter Scale. There are minor, small, regular, great and major earthquakes in the scale. Scientists measure these earthquakes are measured with seismographs.

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Scientists measure earthquakes shocks by using seismographs. I know this because on page 18 it states "Seismographs are the instruments that scientists use to measure earthquakes shocks' Scientists use the Richter Scales to measure an earthquake's magnitude. I know thi because on page 20 it says " Scientists use the Richter scale to measure an earthquake's magnitude, the amount of energy it releases." Scientists observe earthquakes then the Mercali Intensity scale uses observations of the earthquake damage and rate it on a scale ranging to 1 where effects are not really noticeable to 5 where damage is total and the ground heaves in waves. I know this because in the text on Page 23 it said "Scientists use observations as well as insruments to measure the effects of an earthquake. The Mercali Intensity Scale uses observations of the earthquake damge to rate it on a scale ranging from 1, where the effects are scarcely noticeable, to 5, where damage is total and the ground heaves in waves."

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Scientists measure and compare earthquakes by using Seismographs. In the text, it says "Seismographs are the instruments that scientist use to measure earthquake shocks." This shows that scientist use seismographs to measure earthquakes.

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