A Supplementary Textbook in Geography for Class XI on UNIT 11 : Natural Hazards and Disasters
CENTRAL BOARD OF SECONDARY EDUCATION
PREET VIHAR, DELHI - 110092
FIRST EDITION 2006
© CBSE, DELHI
Published By: The Secretary, Central Board of Secondary Education, 2, Community Centre, Preet Vihar, Delhi-110092 Design, Layout and Illustration By: Chandu Press, D-97, Shakarpur, Delhi-110092 Printed By: Chandu Press, D-97, Shakarpur, Delhi-110092
y CBSE Advisors: ο ο y Shri Ashok Ganguly, Chairman, CBSE. Shri G. Balasubramanian, Director (Academics), CBSE.
Editor: ο Shri M.P Sajnani, Advisor Disaster Management & Dy. National Project Director, GOI-UNDP, DRM Programme.
Authors: ο ο Ms. Balaka Dey, Programme Associate, GoI – UNDP, DRM Programme. Dr. R.B Singh, Reader, Dept. of Geography, Delhi School of Economics, University of Delhi, Delhi – 110007.
Review Team: ο ο Prof. Noor Mohammad, Dept. of Geography, Delhi School of Economics, University of Delhi, Delhi – 110007. Shri S.S Rastogi, Retd. Principal, Directorate of Education, Delhi
Coordinator: Ms. Sugandh Sharma, Education Officer (Commerce), CBSE
Foreword For Students Chapter 1:
Introduction to Disaster Management Page Nos. (i) (ii) 1
Natural Hazards: causes, distribution pattern, consequences and mitigation measures for : y y y y y y Earthquake Tsunami Cyclone Flood Drought Landslide 10 17 23 30 34 39
The recurrent occurrences of various natural and manmade disasters like the December 2004 Tsunami, the bomb blasts in the cinema halls of Delhi and many such incidences have diverted our focus towards safety of one’s own life. In the previous class of VIII, IX and X as students you must have read about various natural and manmade hazards – their preparedness and mitigation measures. In class XI, the Board had introduced frontline curriculum on Disaster Management in Unit 11 of the Geography syllabus. In supplementary textbook on Disaster Management in Geography the Board intends to explain in detail various concepts used in Disaster Management and discussed about the causes, distribution pattern, consequences and mitigation measures for various natural hazards like earthquake, tsunami, flood, cyclone, landslide and drought which are a recurrent phenomena in our country. I hope this book will help all students of Geography, who are the future citizens, to have a better understanding of the subject so that they are well prepared to combat it. Being senior students of the school I would appreciate if all of you (including teachers) as responsible citizens and as volunteers take up the initiative of preparing the school disaster management plan and also educate the younger students of the school on various safety measures that need to be taken up for a better living. I would like to thank Ministry of Home Affairs for their support and guidance in the preparation of the course material and helping the Board in carrying out training programmes for the teachers across the country. I would also like to extend my sincere thanks to the Geography Department, University of Delhi for the support they have extended to come up with the course outline for the Board and also helping in the development of the textbook. My sincere thanks to the UNDP team who have contributed the most and have tirelessly put all their effort in development of the textbook and also carrying out training programmes for the teachers and the school principals across the country without whose support the initiative would have been difficult to continue. I am grateful to the teachers who have played a key role in making the subject so interesting and demanding. Their understanding and interest have made teachers, students and other staff members of the school design the school disaster management plans which have made the schools a better and safer place. Last but not...