Why are Shivaliks

From north to south, there is three Himalayan range:

• Himadri

• Himachal

• Shivalik

Shivalik Range is also known as the outer Himalayas. It is a southernmost division of Himalayas. The average height of these Himalayas is 900m to 1200m. The width of the Shivalik Hills varies from 10 to 50 km. It contains alluvial sediments which are brought by the rivers flowing from the upper Himalayas. Shivalik ranges are more prone to landslides and earthquakes because:

i. They are weak in nature as they are formed of alluvium, gravel and sediments.

ii. They are located at the convergent tectonic plates of Eurasian and Indo-Australian plates which is a threat for landslides.

iii. The formation of the Shiwalik Mountains from unconsolidated sediments is the biggest reason for earthquakes and landslides.