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प्रश्न
Name the causes of earthquakes.
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उत्तर
- Volcanic eruptions
- Faulting
- Elasticity of rocks
- Local causes
- Apeiron, Genetic events.
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.
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.
State two natural causes of an earthquake.
Name two man-made causes of an earthquake.
What is known as the Richter scale?
Explain the three types of earthquake waves.
Earthquakes occur in the Mid-Atlantic belt.
What was the cause of the Koyna earthquake in India?
Name three causes of Earthquakes.
Give one word for the following :
An instrument used for recording all the earth tremors and earthquakes.
Give one word for the following :
The surface position immediately above the origin of an earthquake.
The magnitude of an earthquake is measured by ______.
The earthquake waves are recorded by an instrument known as ______.
On an outline map of the world, mark the Pacific Ring of Fire
An earthquake of magnitude ______ scale can cause damage from things falling.
In India, the Himalayan region and the ______ valley are prone to earthquakes.
