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प्रश्न
Fill in the blank:
___________ are the first earthquake waves to be recorded on a seismograph of an earthquake.
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उत्तर
P (primary or push waves) are the first earthquake waves to be recorded on a seismograph of an earthquake.
संबंधित प्रश्न
Identify and name the internal movement.
Molten magma is thrown out of the earth’s mantle.
What is called an earthquake?
State two natural causes of an earthquake.
Name two man-made 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. |
What is the difference between seismic focus and epicenter?
What is an Earthquake?
Describe the world’s distribution of earthquakes.
Name the instrument used to record Earthquakes.
What was the cause of the Koyna earthquake in India?
Why are earthquakes related to volcanoes?
Name three causes of Earthquakes.
Choose the odd one
Choose the odd one
Define Earthquake.
What is Seismograph?
Name the point where the vibrations originate in an earthquake.
What is the point of the earth’s surface directly above the focus called?
Choose the odd one.
focus, epicenter, vent, seismic waves
