Seismic activity at the MCT in Sikkim Himalaya |
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| Authors: | Reena De JR Kayal |
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| Institution: | aGeological Survey of India, Eastern Region, Salt Lake, Kolkata 700 096, India;bGeological Survey of India, Central Geophysics Division, 27 J.L. Nehru Road, Kolkata-700016, India |
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| Abstract: | A microearthquake survey in the Sikkim Himalaya raised a question whether the north–south segment of the Main Central Thrust (MCT) in this part of the Himalaya is seismically active(?). Fault-plane solution of a cluster of events occurred below this segment of the MCT shows right-lateral strike-slip motion. The seismic observations and the geological evidences suggest that a NNE–SSW trending strike-slip fault, beneath this segment, caused right lateral movement on the MCT, and is seismically active. |
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| Keywords: | Microearthquakes Fault-plane solution Active fault Seismotectonics |
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