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Who was the first geologist to devise an instrument used to detect an earthquake?

Who was the first geologist to devise an instrument used to detect an earthquake? Correct Answer Chang Heng

The correct answer is Chang Heng.

Important Points

  • The instrument which is used to measure earthquake is known as Seismograph.
  • The earliest Seismograph was invented by the Chinese philosopher Chang Heng in 132 CE.
  • It consisted of a large urn on the outside of which were eight dragon heads facing the eight principal directions of the compass. 
  • Below each dragon head was a toad with its mouth opened toward the dragon. 
  • When an earthquake occurred, one or more of the eight dragon-mouths would release a ball into the open mouth of the toad sitting below. 
  • The direction of the shaking determined which of the dragons released its ball. 

  • The instrument is reported to have detected an earthquake 400 miles away that was not felt at the location of the seismoscope. 

Hence, the correct answer is - Chang Heng.

Related Questions

With reference to an earthquake consider the following statements. 1. The point where the energy of an earthquake is released is called the hypocentre. 2. The point on the surface, nearest to the focus of the earthquake, is called epicentre. 3. Epicentre is a point directly below the focus of an earthquake. Which of the statements given above is / are correct?
Which of the following statements is/are true for a natural building material like bamboo during an earthquake? i) It will result in a flexible structure, however needs to be designed stiff enough to resist earthquake forces. ii) Since it has a good specific strength (MPa/kg), the earthquake resistance is better. iii) Being light in weight, it will experience lesser earthquake forces
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There are certain mechanisms to secure direct democracy. Which of the following pairs is/are not correctly matched in this connection?
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2. Recall ⇔ A devise to enable to a people's representative to call the popular assembly consisting of all the adult members of the electorate of his or her constituency in order to listen to their grievances and redress them
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Select the correct answer from below:
With reference to earthquakes, which of the following statements are correct? 1. Earthquakes largely occur along the converging plate boundaries. 2. Point of origin of the earthquake in the lithosphere is known as focus/Hypocentre. 3. The intensity of the earthquake decreases with distance from the epicentre. 4. The epicentre of the earthquake always remains over continents only. Select the correct answer using the code given below.
In the year 2004 Indian Ocean experienced a earthquake on the 26th of December. This earthquake triggered a series of devastating tsunamis up to 30 meters high. The earthquake was one of the deadliest natural disasters in the recorded history. Tsunamis are more frequent in the Pacific Ocean than in any other oceans because of earthquakes in the "Ring of fire". Although the extreme western edges of the Ring of fire extends into the Indian Ocean. This tsunami  brought a lot of destruction to the people and the environment. Which of the following, if true, would weaken the conclusion about the effects of tsunami? 
With reference to earthquakes, which of the following statements are correct? A. Earthquakes largely occur along the converging plate boundaries. B. Point of origin of earthquake in lithosphere is known as focus/hypocenter. C. Intensity of earthquake decreases with distance from the epicenter. D. Epicentre of earthquake always remains over continents only. Select the correct answer using the code given below.
The French Government asked . . . . . . . . to devise a test that would detect those children too slow intellectually to profit from regular schooling.
Which of the following statements is/are NOT true with reference to the measurement of earthquakes?  Statements:  I. The Mercalli scale measures the intensity of earthquakes on levels ranging from 1 to 9. II. The Richter scale assigns a numerical value to quantify energy released during an earthquake. III. The Moment magnitude scale is used to determine the size of an earthquake.
S1:Palaeobotany is the study of fossil plants preserved in rocks dating back in millions of years.
P :Records of the history of the world are contained in fossils.
Q :Through the ages, plants have evolved from simple to more complex forms.
R :First there were water plants then land plants appeared during the Paleozoic era.
S :But since the fossil remains appear locked in rock layers, they are closely related to the geologist area of investigation.
S6:The fossil plants indicate the age of the rock, and also point to facts regarding climate, temperature and topography.

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