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10 quakes in 18 years in J'khand, claims geologist Jharkhand has experienced more than 10 tremors in 18 years though their intensity was mild to medium, geologist Nitish Priyadarshi claimed and suggested that newly constructed buildings in the state should be earthquake-resistant. 'Back-to-back tremors occurred for the first time in Jharkhand. The state has never experienced aftershocks,"Priyadarshi, a member of the Geological Society of India, said here.     He said the Chhotanagpur Plateau in Jharkhand represents a part of the Indian Peninsular field that is "stable cratonic block of the earth crust".     Craton is the stable interior portion of a continent characteristically composed of ancient crystalline basement rock and there is a belief that land above a cratonic block is generally shielded from earthquakes.     "The cause for concern is that there had been more than 10 mild to medium tremors occurred in the area since 1997," sai...

The tremor left a 200-foot long/10-foot deep crater on the road. by Dr. Nitish Priyadarshi It is for the first time in earthquake history of Jharkhand that the earthquake, which jolted North and Eastern India on 19th September, left a 200-foot long crack on the NH-75 in Latehar district, disrupting traffic. The tremor left a 200-foot long/10-foot deep crater on the road disrupting traffic near Sikni Colliery. It came as surprise as the area is treated geologically as the most stable cratonic block related to tremors. According to the local administration it was due to Sikni coal mines near that highway. They said that the mining has created instability of the upper surface of the earth of near by areas and the cracks were the multiple effects of both mining and tremors. If it is true then most of the areas of the Jharkhand State where the coal mining are rampant are under tremendous threat in future. Geologically Jharkhand state represents a part of the Indian Peninsular shield, which ...