Correct Answer - Option 1 : 1967
The correct answer is 1967.
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The 1967 Koynanagar earthquake occurred near Koynanagar town in Maharashtra, India on 11 December local time.
- The magnitude of 6.6 shocks hit with a maximum Mercalli intensity of VIII (Severe).
- It occurred near the site of Koyna dam, raising questions about induced seismicity, and claimed at least 177 lives and injured over 2,200.
There are three basic types of seismic waves – P-waves, S-waves, and L waves.
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P wave (primary wave or pressure wave) is one of the two main types of elastic body waves, called seismic waves in seismology.
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P waves travel faster than other seismic waves and hence are the first signal from an earthquake to arrive at any affected location or at a seismograph.
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S waves, secondary waves, or shear waves (sometimes called elastic S waves) are a type of elastic wave and are one of the two main types of elastic body waves, so named because they move through the body of an object, unlike surface waves.
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The L waves travel along the surface of the earth from the point directly above the quake or epicentre.
