DMPQ- Why are Himalayan regions vulnerable to landslides?

Unlike other disasters, landslides are largely controlled by highly localised factors. Landslides of different types are frequent in geodynamically active domains in the Himalayan and Arakan-Yoma belt of the North-Eastern parts of the country. Landslide hazard zonation mapping has categorized the Himalayan region as Very High Vulnerability Zone.

 

Factors that make the Himalayan region more prone to the occurrence of landslides:

  • Geological factors o Tectonically active – Himalayan mountain ranges and hilly tracts of the North-Eastern region have high seismicity resulting from proximity to the plate margins. Co-seismic landslides are triggered or induced by earthquakes. o Steepness of Slope – Himalayan regions are highly susceptible to slope instability due to the immature and rugged topography, fragile rock conditions. They are mostly made up of sedimentary rocks and unconsolidated and semi-consolidated deposits.

 

  • Climatic factors o Intense Rainfall – Heavy rains result in substantial soil erosion and can trigger frequent landslides.

 

  • Anthropogenic factors o Deforestation – Decrease in natural vegetation cover has disturbed the stability of the slope as a result of change in surface and groundwater regime. It has loosened the soil and increased soil erosion. o Population Pressure and Developmental Activities – Unscientific land use due to urbanisation, construction of roads and dams, mining, increase in grazing activities etc. has increased the hazard manifold.
KPSC Notes brings Prelims and Mains programs for KPSC Prelims and KPSC Mains Exam preparation. Various Programs initiated by KPSC Notes are as follows:- For any doubt, Just leave us a Chat or Fill us a querry––

Hope we have satisfied your need for KPSC Prelims and Mains Preparation

Kindly review us to serve even better


KPSC Mains Test Series 2022

20 Quality mock tests and GS Mains Notes

Mains Test Series and Notes

Mains Printed Notes (With COD)


KPSC Prelims Test Series 2022

24 Quality mock tests and GS Prelims Notes

Prelims Test Series and Notes

Prelims Printed Notes (With COD)

[jetpack_subscription_form title=”Subscribe to KPSC Notes” subscribe_text=”Never Miss any KPSC important update!” subscribe_button=”Sign Me Up” show_subscribers_total=”1″]

error: Content is protected !!