Advertisements
Advertisements
प्रश्न
The earthquake waves are recorded by an instrument known as ______.
Advertisements
उत्तर
The earthquake waves are recorded by an instrument known as seismograph.
APPEARS IN
संबंधित प्रश्न
Give a geographical reason.
Buildings collapsed at the foothills of the Himalayas because of an earthquake. Before collapsing, they were moving forward and backward.
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:
About 70 percent of the earthquakes occur in the _________________ Belt.
State two natural causes of an earthquake.
Name two man-made causes of an earthquake.
How are earthquakes useful?
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. |
Explain the three types of earthquake waves.
Describe the world’s distribution of earthquakes.
Name some Earthquakes which caused great damage.
What was the cause of the Koyna earthquake in India?
Give two major causes of earthquakes.
Give one word for the following :
The surface position immediately above the origin of an earthquake.
Give reasons for the following:
Folding and faulting frequently go together.
The magnitude of an earthquake is measured by ______.
Seismology is the study of ______.
On an outline map of the world, mark the Pacific Ring of Fire
Name the point where the vibrations originate in an earthquake.
