- Movement of tectonic plates: When Earth’s plates collide, slide past, or move away from each other, stress builds up and is released suddenly as an earthquake.
- Volcanic activity: Eruptions can cause earthquakes when magma forces its way through cracks in the crust, creating tremors around the volcano.
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प्रश्न
State two natural causes of an earthquake.
लघु उत्तरीय
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उत्तर
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Earthquake and its causes
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 8: Earthquakes - EXERCISES [पृष्ठ ७९]
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.
Identify and name the internal movement.
Molten magma is thrown out of the earth’s mantle.
Fill in the blank:
The giant sea waves caused by earthquakes in the oceans are called ___________.
What is called 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. |
Describe how earthquakes are caused on the surface of the earth.
What is an Earthquake?
How an earthquake is caused?
Name the instrument used to record Earthquakes.
Name the causes of earthquakes.
Name three causes of Earthquakes.
Give one word for the following :
An instrument used for recording all the earth tremors and earthquakes.
Seismology is the study of ______.
On an outline map of the world, mark the Pacific Ring of Fire
The earthquake is a ______ activity.
How the earthquake can be recorded?
Give a note on Tsunami 2004.
