Earthquake Details

• About 90 per cent earthquakes result from tectonic plate movements
• Rest can be related to volcanic activities, collapse of subterranean cavities or man made effects such as nuclear explosions
• Tectonic earthquakes are triggered when accumulated strain exceeds shearing strength of rocks

Indian Scenario

• Himalayas one of the most tectonically active
• Major strain due to collision is distributed along Himalayas
• Rest is distributed northwards in a wide area from Tibetan plateau to Pamirs
• The push from the north Asian side resulted in compression producing gigantic thrusts

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