1947 Assam earthquake

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1947 Assam earthquake
1947 Assam earthquake is located in India
1947 Assam earthquake
UTC time ??
ISC event
Date * July 29, 1947
Origin time * 13:43 UTC [1]
Local date
Local time
Magnitude 7.3 Mw [1]
Depth 60 km
Epicenter 28°30′N 94°00′E / 28.50°N 94.00°E / 28.50; 94.00 [1]
Max. intensity V (Strong) [2]
Deprecated  See documentation.

The 1947 Assam earthquake occurred on 29 July at 13:43 UTC with an Mw of 7.3 and a maximum EMS-98 intensity of V (Strong).


The earthquake was located near the border between India and Tibet, some sources put the epicenter in Indian, and some put it in Tibet.[3][4] In the Chinese literature, this earthquake was often located around the Nang County, Tibet.[5]


In Dibrugarh, Jorhat, and Tezpur, there were cracks in walls. Failure of electricity was reported in Guwahati,[4] the released seismic moment was about 1.5×1020 Nm,[6] the mechanism of the earthquake is not well known.[7]

Other seismicity[edit]

The border region was struck by the much larger 8.6 Mw Assam–Tibet earthquake three years later, on August 15, 1950.

See also[edit]


  1. ^ a b c Engdahl, E. R.; Vallaseñor, A. (2002). "Global seismicity: 1900–1999". International Handbook of Earthquake & Engineering Seismology (PDF). Part A, Volume 81A (First ed.). Academic Press. p. 679. ISBN 978-0124406520. 
  2. ^ Martin, S.; Szeliga, W. (2010), "A Catalog of Felt Intensity Data for 570 Earthquakes in India from 1636 to 2009", Bulletin of the Seismological Society of America, Electronic Supplement (table S2), Seismological Society of America, 100 (2): 562–569, Bibcode:2010BuSSA.100..562M, doi:10.1785/0120080328 
  3. ^ National Geophysical Data Center / World Data Service (NGDC/WDS), Significant Earthquake Database, National Geophysical Data Center, NOAA, doi:10.7289/V5TD9V7K 
  4. ^ a b AASC. "Documentation on past disasters, their impact, measures taken, vulnerable areas in Assam" (PDF). Assam Administrative Staff College. p. 9. 
  5. ^ "青藏块体8级左右地震前中强地震活动图像的相似性演化" by 朱红彬
  6. ^ Delescluse, M.; Chamot-Rooke, N. (2007), "Instantaneous deformation and kinematics of the India-Australia Plate", Geophysical Journal International, 168 (2): 818, Bibcode:2007GeoJI.168..818D, doi:10.1111/j.1365-246X.2006.03181.x 
  7. ^ Sengupta, P.; Nath, S. K.; Thingbaijam, K. K. S.; Mistri, S. (2011). "Fractal analysis of major faults in India on a regional scale" (PDF). Journal of the Geological Society of India. Geological Society of India. 78 (3): 229. doi:10.1007/s12594-011-0086-4. 

External links[edit]