";s:4:"text";s:2834:" 2. ii. As the ground vibrates during an earthquake, the buildings on the ground also start vibrating. Put simply, there are two ways of protecting buildings—strengthening them or allowing them to move with the vibrations of the ground. Several buildings were damaged or destroyed in the quake. vi. Most earthquakes occur on account of the strain in the earth’s crust. The quake occurred on January 15, 1934 and was recorded 8.1 on the Richter scale. The range of this scale is from 0 to 10. Extensive damage was caused to life and property. by a specific number for an earthquake and is called Richter Magnitude. The Uttarkashi earthquake of 1991, 2. The huge blocks that make up the crust are called tectonic plates. The greatest damage caused by an earthquake is usually due to the destruction of buildings. Hold on to something that is unlikely to fall [drop, cover, hold). The recent floods in Uttarakhand are a cruel reminder of the natural disasters the country has faced in the past. If you are outdoors, stay away from trees, buildings, poles, and so on.
We know of them only because they are recorded by instruments called seismographs (the Greek word seismos means ‘earthquake’). Diseases spread due to the shortage of basic amenities like drinking water (water pipes get damaged) and the crowding of shelters where the homeless are accommodated. The earthquake that occurred in Koyna (Maharashtra) in 1967, for example, is thought to have been caused by the Koyna dam. And over the mantle rests the hard layer of rocks we call the crust. Earthquakes measuring 9 or more on this scale are rare. About 16 million people were affected and the loss was more than Rs 200 billion. Koti Banal is the name of a village in the Yamuna Valley (Rajgarhi area of Uttarkashi district). The tremors during an earthquake can make buildings collapse. District Map of Uttarkashi showing major roads, district boundaries, headquarters, rivers and other towns of Uttarkashi, Uttarakhand. Over a thousand people were killed in the quake and extensive damage was caused to property. Hospitals and health centres get overcrowded. They may also slide under each other or move apart. It is more like a jigsaw of blocks that fit together.