मराठी

What are known as seismic focus and epicenter with respect to an earthquake?

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प्रश्न

What are known as seismic focus and epicenter with respect to an earthquake?

अति संक्षिप्त उत्तर
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उत्तर

The point of origin of earthquake waves is called the seismic focus, and the center vertically above the seismic focus nearest to the earth’s crust is called the epicenter.

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Earthquake and its causes
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पाठ 8: Earthquakes - EXERCISES [पृष्ठ ७९]

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मॉर्निंग स्टार Total Geography [English] Class 9 ICSE
पाठ 8 Earthquakes
EXERCISES | Q II. 4. | पृष्ठ ७९

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.


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 the difference between seismic focus and epicenter?


Describe the world’s distribution of earthquakes.


Name some Earthquakes which caused great damage.


Describe the main type of Earthquake Waves.


Give one word for the following :
An instrument used for recording all the earth tremors and earthquakes.


Give reasons for the following:
Folding and faulting frequently go together.


The magnitude of an earthquake is measured by ______.


Choose the odd one


Define Earthquake.


On an outline map of the world, mark the Pacific Ring of Fire


How the earthquake can be recorded?


Give a note on Tsunami 2004.


In India, the Himalayan region and the ______ valley are prone to earthquakes.


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