Landslides are common in India’s northern Himalayan region, particularly in the current monsoon season when heavy rains lead to subsidence of earth and rocks. The situation is exacerbated by climate change making the monsoon more erratic and melting glaciers higher in the mountains.
Do landslides occur in India?
Landslides and avalanches are among the major hydro-geological hazards that affect large parts of India besides the Himalayas, the Northeastern hill ranges, the Western Ghats, the Nilgiris, the Eastern Ghats and the Vindhyans, in that order, covering about 15 % of the landmass.
Where are landslides common in India?
The two regions most vulnerable to landslides are the Himalayas and the Western Ghats.
|Region||Incidences of Landslides|
|Himalayas||High to very high|
|Western Ghats and the Nilgiris||Modern to high|
Which state in India is prone to landslides?
The major landslide prone areas in India include the Western Ghats and Konkan Hills (Tamil Nadu, Kerala, Karnataka, Goa and Maharashtra), Eastern Ghats (Araku region in Andhra Pradesh), North-East Himalayas (Darjeeling and Sikkim) and North West Himalayas (Uttarakhand, Himachal Pradesh, Jammu and Kashmir).
Which is the largest landslide in India?
1998 Malpa landslide. The Malpa landslide was one of the worst landslides in India. On 18 August 1998 at 3.00 a.m., massive landslides wiped away the entire village of Malpa in the Pithoragarh district of Uttarakhand, then in Uttar Pradesh in Kali Valley of Higher Kumaon division of the Himalayas.
How can we stop landslides in India?
There are also various direct methods of preventing landslides; these include modifying slope geometry, using chemical agents to reinforce slope material, installing structures such as piles and retaining walls, grouting rock joints and fissures, diverting debris pathways, and rerouting surface and underwater drainage.
What are the 4 types of landslides?
They are classified into four main types: fall and toppling, slides (rotational and translational), flows and creep.
Why do landslides occur in India?
The note contains the study of 105 landslides in the region. All the landslides are triggerd by heavy and the major causes are modification of the natural slopes, blockage of natural drainage, water tanks / ponds in the slope and flash flood due to temporary dam formed by blockage of streams.
What type of areas are prone to landslides?
Slides can occur in all 50 states, but regions like the Appalachian Mountains, the Rocky Mountains and the Pacific Coastal Ranges have “severe landslide problems,” according to the USGS. The agency lists California, Oregon, Washington, Alaska and Hawaii as especially prone.
Why do Landslides occur?
Landslides are caused by disturbances in the natural stability of a slope. They can accompany heavy rains or follow droughts, earthquakes, or volcanic eruptions. Mudslides develop when water rapidly accumulates in the ground and results in a surge of water-saturated rock, earth, and debris.
How can we prevent landslides?
To prevent shallow slides, you can do a few things on slopes that are on your property:
- Maintain as much vegetation as possible on the slope to help retain the soil.
- Do not put yard waste on the slope.
- Do not add additional water from downspouts to slopes from storm water runoff being directed to a hillside.
How do you tackle landslides?
What To Do After a Landslide
- Stay away from the slide area. …
- Listen to local radio or television stations for the latest emergency information.
- Watch for flooding, which may occur after a landslide or debris flow. …
- Check for injured and trapped persons near the slide, without entering the direct slide area.