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प्रश्न
Give one word for the following :
The surface position immediately above the origin of an earthquake.
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उत्तर
Epicentre
संबंधित प्रश्न
For the formation of a rift valley, which of the following processes should occur in the earth’s crust?
Give a geographical reason.
Buildings collapsed at the foothills of the Himalayas because of an earthquake. Before collapsing, they were moving forward and backward.
Identify and name the internal movement.
Molten magma is thrown out of the earth’s mantle.
Fill in the blank:
Most earthquakes occur on account of the strain in the _________.
Fill in the blank:
The last of the earthquake waves to arrive on the surface of the earth are ___________ waves.
Fill in the blank:
The giant sea waves caused by earthquakes in the oceans are called ___________.
Fill in the blank:
About 70 percent of the earthquakes occur in the _________________ Belt.
State two natural causes of 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. |
Explain the three types of earthquake waves.
How are earthquakes distributed over the globe?
What was the cause of the Koyna earthquake in India?
Answer the following:
A volcanic eruption is one of the main causes of earthquakes.
Give reasons for the following:
Internal processes are different from external processes.
Seismology is the study of ______.
Choose the odd one
How the earthquake can be recorded?
Give a note on Tsunami 2004.
Choose the odd one.
focus, epicenter, vent, seismic waves
