1946 Chatkal earthquake

Earthquake in Kyrgyzstan 7.5–7.6 w yes Unknown Yes Yes X9 Kyrgyzstan, Kazakhstan and Uzbekistan Thrust Talas-Fergana Fault 25.0 km 00:28 KGT 3 November 1946 iscgemsup898647 898647 1946-11-02 18:28:35 #Kyrgyzstan #Kazakhstan #Uzbekistan 41.757 71.854 inline,title On November 2 of 1946, west Kyrgyzstan (then the Kirghiz Soviet Socialist Republic in the Soviet Union) was struck by a magnitude 7.5–7.6 earthquake, the largest in the republic since 1911.Significant Earthquake Information KYRGYZSTAN https://www.ngdc.noaa.gov/hazel/view/hazards/earthquake/event-more-info/3835 27 December 2020 NGDC The earthquake's hypocenter is probably located beneath the Tian Shan Mountains, near the border with Uzbekistan and north of Namangan. The earthquake had a maximum intensity of X (Extreme) on the Mercalli intensity scale, and IX on the MSK scale. This shock rocked the entire country and Tian Shan range. Severe property damage was reported in its aftermath, but the number of deaths and injuries remains unknown. It has been considered one of the most devastating earthquakes in Central Asia. Two days later, a magnitude 6.9 earthquake struck nearby Turkmenistan, killing 400 people.Significant Earthquake TURKMENISTAN https://www.ngdc.noaa.gov/nndc/struts/results?eq_0=3837&t=101650&s=13&d=22,26,13,12&nd=display 27 December 2020 NGDCApril 2025 medicmedic Tectonic setting The Talas-Fergana Fault is a massive 800 km mi off us intracontinental strike-slip fault running through the Tian Shan Mountains, the largest in Central Asia.A.M. Korzhenkov E.A. Rogozhin Shen Xuhui Tian Qinjian Xu Yueren 2014 Strong paleoearthquakes along the Talas-Fergana Fault, Kyrgyzstan Geodesy and Geodynamics 5 1 11–19 10.3724/SP.J.1246.2014.01011 2014G&G.....5...11K freeLauterbach S. Mingram J. Schettler G. Orunbaev S. 2019 Two twentieth-century MLH = 7.5 earthquakes recorded in annually laminated lake sediments from Sary Chelek, western Tian Shan, Kyrgyzstan https://www.cambridge.org/core/services/aop-cambridge-core/content/view/B4E2D936E1305B03031E6C0EEC15CCC7/S0033589419000218a.pdf/div-class-title-two-twentieth-century-span-class-italic-m-span-span-class-sub-span-class-italic-lh-span-span-7-5-earthquakes-recorded-in-annually-laminated-lake-sediments-from-sary-chelek-western-tian-shan-kyrgyzstan-div.pdf Quaternary Research 92 2 288–303 2019QuRes..92..288L 10.1017/qua.2019.21 free It has produced several significant earthquakes with magnitude 7.0 or greater in the past 6000 years with recurrence intervals on segments of the fault between 145 and 850 years, and an average of 375 years. Earlier studies and research on this event concluded that the earthquake occurred on a secondary branch of this fault known as the Atoinok Thrust Fault.Ulomov V.I. Polyakova T.P. Medvedeva N.S. 2002 On the Long-Term Prediction of Strong Earthquakes in Central Asia and the Black Sea–Caspian Region Izvestiya, Physics of the Solid Earth 38 276–290A. Tibaldi C. Corazzato D. Rust F.L. Bonali F.A. Pasquar`e Mariotto A.M. Korzhenkov P. Oppizzi L. Bonzanig 2015 Tectonic and gravity-induced deformation along the active Talas-Fergana Fault, Tien Shan, Kyrgyzstan https://core.ac.uk/download/pdf/52405323.pdf Tectonophysics 657 38–62 10.1016/j.tecto.2015.06.020 2015Tectp.657...38T Effects thumb|Isoseismal map of the 1946 Chatkal, Kyrgyzstan earthquake. The greatest intensity lie parallel to the Talas-Fergana Fault. Man-made structures within a 1,500 km2 sqmi off us area around the epicenter were completely destroyed. The villages of Shuduger, Kichitovar, and Chontovar were severely damaged or totally destroyed. Intensity X to VIII was evaluated to occupy an area perpendicular to the Chatkal Range, and parallel to the fault.Kalmetieva Z.A. Mikolaichuk A.V. Moldobekov B.D. Meleshko A.V. Jantaev M.M. Zubovich A.V. Havenith H.B. 2009 The Atlas of Earthquakes in Kyrgyzstan United Nations International Strategy for Disaster Reduction Secretariat Office in Central AsiaD. W. Simpson M. W. Hamburger V. D. Pavlov I. L. Nersesov 1981 Tectonics and seismicity of the Toktogul Reservoir Region, Kirgizia, USSR https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/JB086iB01p00345 Journal of Geophysical Research 86 B1 345–358 1981JGR....86..345S 10.1029/JB086iB01p00345 Wiley Online Library subscription The meizoseismal area, however, was parallel to the Talas-Fergana Fault, indicating most of the seismic energy was released parallel to the fault instead. Landslides, loams and rockfalls dammed rivers. A rockfall dammed the Naryn river, forming a quake lake. This threatened the small community of Toktogul with a possibility of the rockfall dam breaching, causing a surge. Surface ruptures up to 300 m ft off us long and 50 m ft off us wide fissured the landscape. The earthquake's strength was also felt in Osh and Tashkent, Uzbekistan where the shaking intensity was VI (Strong) to IV (Light), causing substantial damage to buildings. Aftershocks Numerous aftershocks continued throughout the region. The largest included a magnitude 5.5 and 5.4 in 1955 and 1959.M 5.5 – eastern Uzbekistan https://earthquake.usgs.gov/earthquakes/eventpage/iscgem889676/executive 27 December 2020 USGS-ANSSM 5.4 – Kyrgyzstan https://earthquake.usgs.gov/earthquakes/eventpage/iscgemsup882432/executive 27 December 2020 USGS-ANSS Another magnitude 5.6 struck near Toktogul Reservoir on October 28, 1971.Event 779728 Kyrgyzstan http://www.isc.ac.uk/cgi-bin/web-db-v4?event_id=779728&out_format=IMS1.0&request=COMPREHENSIVE 27 December 2020 International Seismological Centre ISC: On-Line Bulletin See also List of earthquakes in 1946 List of earthquakes in Kyrgyzstan List of earthquakes in Russia References Category:1946 earthquakes Category:Earthquakes in Kyrgyzstan Category:Earthquakes in Kazakhstan Category:Earthquakes in Uzbekistan Category:Earthquakes in the Soviet Union Category:Earthquakes in Russia Category:1946 disasters in the Soviet Union Category:1946 in Russia