Development of Faults and Prediction of Earthquakes in the Himalayas
Keywords:
Faults and faulting, Himalayan thrusts, Oil trap, Seismicity, Superimposed deformationAbstract
Recurrence period of high magnitude earthquakes in the Himalayas may be of the order of hundreds of years but
a large number of smaller earthquakes occur every day. The low intensity earthquakes are not felt by human
beings but recorded in sensitive instruments called seismometers. It is not possible to get rid of these earthquakes
because the mountain building activity is still going on. Continuous compression and formation of faults in the
region is caused by northward movement of the Indian plate. Some of the larger faults extend from Kashmir to
Arunachal Pradesh. Strain build up in the region results in displacement along these faults that cause earthquakes.
Types of these faults, mechanism of their formation and problems in predicting earthquakes in the region are
discussed
Downloads
References
Davis, G. H., Reynolds, S. J., & Kluth, C. F. (2011). Structural geology of rocks and regions. John Wiley & Sons.
Dubey, A. K. (2014). Understanding an orogenic belt: structural evolution of the Himalaya. Springer.
Gansser, A. (1964). Geology of the Himalayas. Interscience, NewYork, 289 pp.
Kandpal, G. C., Joshi, K. C., Joshi, D. D., Singh, B. K., & Singh, J. (2006). Signature of quaternary tectonics in a
part of Dehra Dun valley, Uttaranchal. Journal Geological Society of India, 67, 147-150.
Rautela, P. & Sati, D. (1996). Recent crustal adjustments in Dehra Dun valley, western Uttar Pradesh, India.
Current Science, 71, 776-780.
Srivastava, D. C. & John, G. (1999). Deformation in the Himalayan frontal fault zone : Evidence from small scale
structures in Mohand- Khara area, NW Himalaya. Gondwana Research Group Memoir, Osaka, Japan, 6, 273-284.
Valdiya, K. S., Joshi, D. D., Sanwal, R., & Tandon, S. K., (1984). Geomorphic development across the active
main boundary thrust: an example from the Nainital hills in Kumaun Himalaya. Journal Geological Society of
India, 25(12), 761-774.
Yeats, R. S. & Thakur, V. C. (1998). Reassessment of earthquake hazard based on a fault-bend fold model of the
Himalayan plate-boundary fault. Current Science, 74(3), 230-233