Assertion (A) : The Koyna region of Maharashtra is likely to become more earthquake prone in near future.
Reason (R) : The Koyna dam is located on an old fault-plane which may get activated more frequently with changes in water lavel in Koyna reservoir.
Both A and R are true and R is the correct explanation of A.
Correct AnswerBoth A and R are true but R is not the correct explanation of A.
Incorrect AnswerA is true and R is false
Incorrect AnswerA is false but R is true.
Incorrect AnswerExplanation:
Both A and R are true and R is the correct explanation of A.
The 1967 Koynanagar earthquake occurred near Koynanagar town in Maharashtra, India. The magnitude 6.6 shock 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. The depth of focus of the earthquake has been estimated at about 30 km. The earthquake was felt over distances up to 700 km from the epicentre.
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By: santosh