Despite the Peninsular India being a stable land mass and a region of slight seismicity, it has witnessed several earthquakes. Discuss the reasons.
Main Body
The peninsular India is the oldest geological past of Indian sub-continent and hence is tectonically stable, but it is not devoid of earthquakes.
Earthquakes in peninsular India:
1. Reactivation of old faultlines - the Bhuj earthquake was the example of reactivation of fault line that runs along the Narmada Valley
2. Reactivation induced seismicity - the prime earthquake of Morbi there was due to the RIC neam.
3. Volcanic activity - the expulsion of Karakasha volcano in 19th century sent tremors across the south Indian region
4. Anthropogenic activities during & explosion causes & tremors as well.
The Bureau of Indian Geodesy demarcated the Earthquakes sensitivity map dividing India into zone II to zone IV highlighting that is zone of India earthquakes fate.
— Suyash Dwivedi · AIR 94
Diagram
Map of India showing earthquakes in peninsular India with legend indicating zones (Zone I, Zone II, Zone III, Zone IV) with corresponding earthquake intensity classifications. Shows fault line along Narmada Valley.
- Provides specific example
- Includes map with zones
- Clear historical reference
- Lists multiple reasons
- References scientific agency
- Mentions volcanic and human causes
Suyash Dwivedi
Important Geophysical Phenomena
Earthquakes
Peninsular India seismicity
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Total words
6
Paragraphs
technical/analytical
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