On October 20, 1991, at 2.53 a.m. local time, an earthquake occurred in the Garhwal Himalayas in northern India.The earthquake caused strong ground shaking in the district of Uttarkashi, Tehri, and Chamoli in the state of Uttar Pradesh. Official information indicates that population of about 307,000 in 1,294 villages were effected; 768 persons died while 5,066 were injured. In addition the earthquake claimed 3,096 head of livestock. As many as 42,400 houses were damaged. The roads between Uttarkashi and Gangotri were disrupted. A four-member team from Civil Engineering Department of the Indian Institute of Technology, Kanpur conducted a survey of the significantly affected areas during October 27 to November 4. The team members were Dr. Sudhir. K. Jain, Dr. R. P. Sigh, Dr. V. K. Gupta, and Mr. Amit Nagar.