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1975 Bagan earthquake
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Earthquake in Myanmar
1975 Bagan earthquake
Burma
1975-07-08 12:04:38
725977
iscgem725977
1975 07 08 y
18:34:38
7.0 w y
157 km mi 0 on
21.48 94.7 region:BD_type:event inline,title
Ninety-four major temples extensively damaged
8Hasbi Ash Shiddiqi Pa Pa Tun Tun Lin Kyaw Lars Ottemöller Source Study of the 24 August 2016 Mw 6.8 Chauk, Myanmar, Earthquake Seismological Research Letters 2018 89 5 1773–1785 10.1785/0220170278 2018SeiRL..89.1773S 11250/2753244 134589610 https://bora.uib.no/bora-xmlui/bitstream/handle/11250/2753244/Shiddiqi_etal_2018.pdf?sequence=1&isAllowed=y https://web.archive.org/web/20211224135433/https://bora.uib.no/bora-xmlui/bitstream/handle/11250/2753244/Shiddiqi_etal_2018.pdf?sequence=1&isAllowed=y dead December 24, 2021
2 dead 15 injured
The 1975 Bagan earthquake occurred on July 8 at 6:34 pm local time (12:04 UTC) in Bagan, Myanmar. Many important stupas and temples were destroyed. The strongest intensity was felt in the towns of Nyaung-U, Pakokku, and Yesagyo, and in the Myaing townships on the confluence of the Ayeyawady River. Damage was also reported in Chauk and Natmauk townships. It had a magnitude of w y 7.0.ISC-GEM Global Instrumental Earthquake Catalogue Version 11.0 International Seismological Centre 25 June 2024 10.31905/D808B825 Data set free
Art historians rank the archeological treasures of Bagan (formerly called Pagan) with the renowned temple complex at Angkor Wat or with the European artworks of Venice and Florence. The earthquake "irreparably damaged many of the great temples of Bagan, an artistic landmark of Asia and the center of the Burmese national culture."An Earthquake in Burma Ravages Ancient Shrines by Henry Kamm, The New York Times, July 24, 1975 Burma's Director General of Archeology said the earthquake the worst in the last 900 years of recorded history.U.S. Geological Survey: Earthquake History for July 8th Today in Earthquake History
The source of the earthquake is still controversial because of uncertainties in the depth information ranging from 84 to 157 km. Subduction and collision of the India Plate and the Burma plate is ongoing and this earthquake was on the interface of these two plates.The Bagan Earthquake (1975) by Tint Lwin Swe, Myanmar Earthquake Committee
Tectonic setting
Myanmar lies at region where the Indian, Burma and Eurasian plates collide; with the Burma plate wedged between. The north-northeast motion of the Indian plate towards the Eurasian plate has resulted in the formation of two major plate boundaries along the Burma plate; the Sagaing Fault to the east, and a complex convergent boundary accommodating oblique subduction of the Indian plate beneath Myanmar. Subduction of the Indian plate occur along the Arakan Megathrust; the northern continuation of the Sunda Megathrust; capable of generating an earthquake greater than magnitude 8.0. The w 8.5–8.8 Arakan earthquake of 1762 is believed to be a thrusting earthquake on the Arakan Megathrust.Mondal Dhiman R. McHugh Cecilia M. Mortlock Richard A. Steckler Michael S. Mustaque Sharif Akhter Syed Humayun Microatolls document the 1762 and prior earthquakes along the southeast coast of Bangladesh Tectonophysics 2018 745 196–213 10.1016/j.tecto.2018.07.020 2018Tectp.745..196M free
Intermediate-depth intraslab earthquakes occur as a result of faulting within the subducting Indian plate beneath the Burma plate. These earthquakes have hypocenter depths that range from 60 km to greater than 200 km. Earthquakes including the w 7.3 1988 Myanmar–India earthquake, as well as the April and August earthquakes of 2016 were associated with intermediate-depth intraslab activity.International Seismological Centre Online Event Bibliography http://www.isc.ac.uk/cgi-bin/FormatBibprint.pl?evid=725977 International Seismological Centre 6 August 2021 The 1988 earthquake is the largest known intermediate-depth event in Myanmar.
Earthquake
The earthquake occurred as a result of either reverse or normal faulting at an intermediate depth within the subducting Indian plate beneath the Burma plate. Faulting within the Indian plate at such depth are due to intraplate compression or extension acting on the slab, where faults accommodate the stresses.October 2022 Earthquakes occurring within the Indian plate could be traced up to 200 km beneath the crust.Lin Thu Aung Stacey Servito Martin Yu Wang Shengji Wei Myo Thant Khaing Nyein Htay Hla Myo Aung Tay Zar Kyaw Soe Min Kaung Sithu Tun Naing Saw Ngwe Khaing Kyaw Moe Oo G. Suresh Weiwen Chen Phyo Maung Maung Vineet Gahalaut A comprehensive assessment of ground motions from two 2016 intra-slab earthquakes in Myanmar Tectonophysics 2019 765 146–160 10.1016/j.tecto.2019.04.016 Elsevier 2019Tectp.765..146A free 10220/49535 free
See also
List of earthquakes in 1975
List of earthquakes in Myanmar
References
External links
kokoye2007/albums/72157672961760736 Photos of Bagan after 2016 and 1975 earthquakes
725977
Category:Earthquakes in Myanmar
Category:1975 earthquakes
Category:Bagan
Category:1975 in Burma
Category:1975 disasters in Burma
Category:July 1975 in Asia