Question

one case study based on earthquakes in india

Answer 1

HI FRIEND,...
earthquakes have been devastating India since ages unknown it has been the one of the main causes of the rise and fall of ancient cities....
so let's have a look to the earthquakes in India...
A CASE STUDY
Based on seismic data and different geological and geophysical parameters, the country is divided into five seismic zones. Of the five seismic zones, zone five is the most active region and zone one shows least seismic activity. (However, in 2003, the Bureau of Indian Standard (BIS) redefined the seismic map of India by merging zones I and II, so that India has four zones—II, III, IV and V.)

The entire north-eastern region falls in zone five. In fact, in the last 100 years, as many as five major earthquakes with a magnitude of 7.0 occurred in this region—Assam in July 1918, July 1930 and October 1943, Arunachal Pradesh-China border in August 1950 and Manipur-Myanmar border in August 1988.

Besides the north-east, zone five includes parts of Jammu and Kashmir, Himachal Pradesh, western Uttarakhand hills, Rann of Kachchh (which includes Bhuj) in Gujarat, northern Bihar and the Andaman and Nicobar islands.

One of the reasons for this region being prone to earthquake is the presence of the young-fold Himalayan mountains here which have frequent tectonic movements.

According to experts, considerations of the soil where citizens live, the structure of buildings and the settlement pattern, roughly decide the place and the extent of the damage. The depth of the alluvial soil (sediment deposited by flowing water) plays a crucial role in determining risk......



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Answer 2

Answer:

With question and answer too