1947 Assam earthquake

1947 Assam earthquake
UTC time	1947-07-29 13:43:24
ISC event	897970
USGS-ANSS	ComCat
Local date	July 29, 1947
Local time	18:43:24
Magnitude	7.3 Mw
Depth	60 km
Epicenter	28°30′N 94°00′E / 28.50°N 94.00°E
Max. intensity	V (Strong)

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

Earthquake[]

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] The released seismic moment was about 1.5×10²⁰ Nm.^[5] The mechanism of the earthquake is not well known.^[6] In the Chinese literature, this earthquake was often located around the Nang County, Tibet.^[7]

Damage[]

In Dibrugarh, Jorhat, and Tezpur, there were cracks in walls. Failure of electricity was reported in Guwahati.^[4]

Other seismicity[]

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

References[]

^ ^a ^b Engdahl, E. R.; Vallaseñor, A. (2002). "Global seismicity: 1900–1999" (PDF). International Handbook of Earthquake & Engineering Seismology. Part A, Volume 81A (First ed.). Academic Press. p. 679. ISBN 978-0124406520.
^ 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), 100 (2): 562–569, Bibcode:2010BuSSA.100..562M, doi:10.1785/0120080328
^ National Geophysical Data Center / World Data Service (NGDC/WDS) (1972), Significant Earthquake Database (Data Set), National Geophysical Data Center, NOAA, doi:10.7289/V5TD9V7K
^ ^a ^b AASC. "Documentation on past disasters, their impact, measures taken, vulnerable areas in Assam" (PDF). Assam Administrative Staff College. p. 9. Archived from the original (PDF) on 2017-01-17.
^ 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
^ 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. 78 (3): 229. doi:10.1007/s12594-011-0086-4. S2CID 129791639.
^ "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

External links[]

The International Seismological Centre has a bibliography and/or authoritative data for this event.

[Engdahl-1] Engdahl, E. R.; Vallaseñor, A. (2002). "Global seismicity: 1900–1999" (PDF). International Handbook of Earthquake & Engineering Seismology. Part A, Volume 81A (First ed.). Academic Press. p. 679. ISBN 978-0124406520.

[Martin-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), 100 (2): 562–569, Bibcode:2010BuSSA.100..562M, doi:10.1785/0120080328

[3] National Geophysical Data Center / World Data Service (NGDC/WDS) (1972), Significant Earthquake Database (Data Set), National Geophysical Data Center, NOAA, doi:10.7289/V5TD9V7K

[nic-4] AASC. "Documentation on past disasters, their impact, measures taken, vulnerable areas in Assam" (PDF). Assam Administrative Staff College. p. 9. Archived from the original (PDF) on 2017-01-17.

[5] 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

[6] 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. 78 (3): 229. doi:10.1007/s12594-011-0086-4. S2CID 129791639.

[7] "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

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v t Earthquakes in China
Historical	1290 Chihli (Inner Mongolia) 1303 Hongdong, Shanxi 1556 Shaanxi 1604 Quanzhou, Fujian 1605 Guangdong 1626 Lingqiu, Shanxi 1654 Tianshui, Gansu 1668 Tangcheng, Shandong 1679 Beijing, Hebei 1695 Linfen, Shanxi 1718 Tongwei, Gansu 1739 Yinchuan–Pingluo, Ningxia 1786 Kangding-Luding, Sichuan 1815 Pinglu, Shanxi 1830 Cixian, Hebei 1833 Kunming, Yunnan 1850 Xichang, Sichuan 1879 Wudu, Gansu 1889 Chilik, Xinjiang
20th century	1902 Kashgar, Xinjiang 1906 Manas, Xinjiang 1918 Shantou, Guangdong 1920 Haiyuan, Ningxia 1923 Renda, Sichuan 1925 Dali, Yunnan 1927 Gulang, Gansu 1931 Fuyun, Xinjiang 1932 Changma 1933 Diexi, Sichuan 1937 Heze, Shandong 1947 Assam 1948 Litang, Sichuan 1950 Assam–Tibet 1955 Kangding, Sichuan 1955 Yuzha, Sichuan 1966 Xingtai, Hebei 1969 Bohai Sea 1969 Yangjiang, Guangdong 1970 Tonghai, Yunnan 1973 Luhuo, Sichuan 1974 Zhaotong, Yunnan 1975 Haicheng, Liaoning 1976 Longling, Yunnan 1976 Tangshan, Hebei 1976 Songpan–Pingwu, Sichuan 1981 Dawu, Sichuan 1985 Luquan, Yunnan 1985 Wuqia, Xinjiang 1988 Lancang–Gengma, Yunnan 1990 Gonghe, Qinghai 1994 Taiwan Strait 1995 Menglian, Yunnan 1995 Wuding, Yunnan 1996 Lijiang, Yunnan 1996 Baotou, Inner Mongolia 1997 Jiashi, Xinjiang 1997 Manyi, Tibet 1998 Zhangbei 1998 Ninglang, Yunnan 2000 Yunnan
21st century	2001 Kunlun 2003 Bachu, Xinjiang 2003 Zhaosu, Xinjiang 2005 Ruichang, Jiangxi 2006 Yanjin, Yunnan 2008 Sichuan 2008 Yingjiang, Yunnan 2008 Panzhihua, Sichuan 2008 Damxung, Tibet 2009 Xinjiang 2009 Yunnan 2010 Yushu, Qinghai 2011 Yunnan 2011 Myanmar 2012 Yangzhou, Jiangsu 2012 Zhaotong, Yunnan 2013 Lushan, Sichuan 2013 Dingxi, Gansu 2014 Yutian, Xinjiang 2014 Yingjiang, Yunnan 2014 Ludian, Yunnan 2014 Jinggu, Yunnan 2014 Kangding, Sichuan 2015 Pishan, Xinjiang 2017 Jiuzhaigou, Sichuan 2017 Jinghe, Xinjiang 2019 Changning, Sichuan 2020 Kashgar, Xinjiang 2020 Qiaojia, Yunnan 2021 Dali, Yunnan 2021 Maduo, Qinghai 2021 Luxian, China
By province	Sichuan Yunnan
Organizations	China Meteorological Administration China Earthquake Administration China Earthquake Networks Center China Geological Survey China International Search and Rescue Team

v t Earthquakes in India
Historical	1505 Lo Mustang 1555 Kashmir 1803 Garhwal 1819 Rann of Kutch 1833 Kathmandu–Bihar 1869 Cachar 1881 Nicobar Islands 1885 Kashmir 1897 Assam
20th century	1905 Kangra 1930 Dhubri 1934 Nepal–India 1935 Quetta 1941 Andaman Islands 1947 Assam 1950 Assam–Tibet 1956 Anjar 1967 Koynanagar 1975 Kinnaur 1980 Pithoragarh 1988 Myanmar–India 1988 Nepal 1991 Uttarkashi 1993 Latur 1997 Jabalpur 1997 Chittagong 1999 Chamoli
21st century	2001 Gujarat 2004 Indian Ocean 2005 Kashmir 2009 Andaman Islands 2011 Sikkim April 2015 Nepal May 2015 Nepal October 2015 Hindu Kush 2016 Imphal 2016 Sagaing 2016 Magway 2017 Tripura 2017 Uttarakhand 2021 Assam
Related topics	Earthquake zones of India Geology of the Himalaya

v t Himalayan earthquakes
Notable Himalayan quakes	1505 Lo Mustang 1555 Kashmir 1714 Bhutan 1803 Garhwal 1833 Kathmandu–Bihar 1885 Kashmir 1897 Assam 1905 Kangra 1934 Bihar 1947 Assam 1950 Assam–Tibet 1980 Nepal 1988 Myanmar-India 1988 Nepal 1991 Uttarkashi 1999 Chamoli 2005 Kashmir 2008 Damxung 2009 Bhutan 2011 Sikkim April 2015 Nepal May 2015 Nepal 2021 Assam
Plate tectonics	Geology of the Himalayas Indian Plate Eurasian Plate Main Frontal Thrust Main Himalayan Thrust Main Central Thrust South Tibetan Detachment