Earthquakes Of The Indian Subcontinent

This book highlights some of the interesting recent and historical earthquakes (1803 Uttarkashi, 1819 Kutch, 1897 Shillong, 1905 Kangra, 1934 Nepal-Bihar, 1950 Upper Assam, 1967 Koyna, 1993 Killari, 1997 Jabalpur, 2001 Bhuj, 2004 Sumatra-Andaman, 2005 Kashmir, and 2015 Nepal) that occurred in India and in the vicinity. The tectonic and geodynamic significance of the modern (after the advent of global network) earthquakes in relation to some of the historical earthquakes like the 1819 Kachchh and 1897 Shillong and 1934 Nepal-Bihar earthquakes in the light of newer understanding is discussed. It also contains detailed expositions of seismotectonics and mechanisms of each earthquake. It concludes with touching upon future earthquake hazard scenario in India in view of the present and past earthquakes.

This book highlights some of the interesting recent and historical earthquakes (1803 Uttarkashi, 1819 Kutch, 1897 Shillong, 1905 Kangra, 1934 Nepal-Bihar, 1950 Upper Assam, 1967 Koyna, 1993 Killari, 1997 Jabalpur, 2001 Bhuj, 2004 Sumatra-Andaman, 2005 Kashmir, and 2015 Nepal) that occurred in India and in the vicinity. The tectonic and geodynamic significance of the modern (after the advent of global network) earthquakes in relation to some of the historical earthquakes like the 1819 Kachchh and 1897 Shillong and 1934 Nepal-Bihar earthquakes in the light of newer understanding is discussed. It also contains detailed expositions of seismotectonics and mechanisms of each earthquake. It concludes with touching upon future earthquake hazard scenario in India in view of the present and past earthquakes.

In spite of mankind's triumph in taming nature for his survival and benefit, succumbing to the vagaries of nature has become a regular global concern. Out of the array of different catastrophes, earthquakes and cyclones together are responsible for an overwhelming majority of the global damages caused by natural disasters in the last decade, leaving millions homeless. The loss of property and life are primarily due to failure of structures to withstand such catastrophes, caused often due to lack of implementation of a few guidelines. The evolution of these guidelines is rooted in understanding the principles of the mechanics that regulate the behaviour of the structures under lateral dynamic loading imparted by earthquakes and cyclones.In this context, Improving Earthquake and Cyclone Resistance of Structures: guidelines for the Indian subcontinent, is an attempt to introduce guidelines for the types of building structures frequently observed and built in the Indian subcontinent as well as in other developing countries. The guidelines are meant for both architectural and structural features, and include constructional aspects as well. The book introduces these guidelines in such a manner that all aspects can be properly understood, related, and implemented by practising engineers and architects. On the whole, the book may help develop awareness and sensitized technical manpower for combating the threats posed by natural disasters like earthquakes and cyclones.

The primary goals of this brief are to invoke alertness and solidarity among the public in earthquake prone areas of India, and to empower the community to prepare themselves to face and manage the aftermath of an earthquake. The work presented here sheds new light on the action plans to be taken by the common public and public agencies, before, during and after earthquakes to safeguard lives of people and minimize loss of assets. This carefully presented book articulates various factors related to earthquake preparedness, and develops guidelines and useful tips for communicating them to relevant stakeholders. The book has been divided into three parts: (i) the first providing background which explains earthquakes in general and seismicity of India (ii) the second explores earthquake preparedness intended for individuals, families and various stakeholders, and (iii) the final section which describes various strategies for communities to prepare themselves for a future earthquake.

An erudite work on tectonic resurgence in Late Quaternary time of the Indian subcontinent embracing India, Pakistan, Nepal, Bhutan, and Bangladesh, Neotectonism in the Indian Subcontinent dwells on the causes and consequences of tectonic events that fashioned the landscape of a land characterized by a fragmented framework. The narratives on the structural and geomorphic developments during the morphogenic phase of the geodynamic history of the Indian subcontinent explain many phenomena. These include the tremendous height and spectacular structural-geomorphic architecture of the Himalaya, and the behaviour of wayward rivers in the sinking and rising Indo-Gangetic Plains. In addition are the shifting, deflection, piracy, and even disappearance of rivers and streams in the dry desertic terrane of western India, as well as the unique drainage pattern of the ruptured and rifted plateaus and coastal belts of Peninsular India. The formation of huge lakes due to river ponding in the stable continental shield in Karnataka is also explained. All of these phenomena are accompanied by profuse illustrations. Neotectonism in the Indian Subcontinent portrays the evolution of the extraordinary landforms and landscapes of the subcontinent, constituted by multiple terranes of contrasted lithostructural architecture and distinctive geomorphic layout—each with an altogether different geological history. It chronicles events of crustal unrest or tectonic turmoil manifested as displacement, subsidence, and uplift of the ground with bizarre drainage changes and episodic seismicity. This book caters to planners, engineers, and hazard managers, but also satisfies the curiosity of those who are interested in understanding the formation of the Indian subcontinent. Identifies areas and belts recurrently ravaged by geological hazards resulting from neotectonic activities Provides a wealth of information on neotectonic movements and consequent modification of landscape, drainage aberrations, and ground vulnerability, including references that also provide additional resources for those who seek to pursue comprehensive investigations Includes much new observation and refreshing interpretation to explain many of the striking landforms of the region

This book deals with the development of irrigation in the subcontinent since the beginning of settled agriculture, and its possible connections with the occurrence of salinity and alkalinity in irrigated lands.