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प्रश्न
What is Seismograph?
उत्तर
The earthquake waves are recorded by an instrument known as seismograph.
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संबंधित प्रश्न
Arrange the following statements in chronological order in which an earthquake occurs.
- The earth’s surface vibrates.
- The plates suddenly move.
- Due to the movements in the mantle, compression goes on increasing.
- Along the weak points ( faultlines) rocks break apart.
- Stored energy is released in the form of seismic waves.
Fill in the blank:
The giant sea waves caused by earthquakes in the oceans are called ___________.
Name one man-made cause of an earthquake.
What is known as seismic focus and epicenter with respect to an earthquake?
Match the Columns.
| Column A | Column B |
| 1. Tsunami | (a) The waves that make the inhabitants feel the ground motion. |
| 2. Seismograph | (b) The instrument for measuring the intensity of earthquakes. |
| 3. S-waves | (c) Harbour waves generated by oceanic earthquakes. |
| 4. Richter scale | (d) The point on the earth surface directly above the seismic focus. |
| 5. Epicentre | (e) An instrument for recording the movement of earthquake waves. |
Describe how earthquakes are caused on the surface of the earth.
What is the difference between seismic focus and epicenter?
Is it possible to predict an earthquake? Give reasons to support your answer.
Name the important Earthquake-belts of the world.
OR
Indicate two major belts of Earthquakes.
Name the instrument used to record Earthquakes.
What was the cause of the Koyna earthquake in India?
Give reasons for the following:
Internal processes are different from external processes.
Seismology is the study of ______.
On an outline map of the world, mark the Pacific Ring of Fire
The earthquake is measured by the ______ scale.
The earthquake is a ______ activity.
How the earthquake can be recorded?
What is the point of the earth’s surface directly above the focus called?
