2010 Damghan earthquake

Earthquake in Iran January 2023 January 2023 2010 Damghan earthquake Iran 2010 08 27 2010-08-27 19:23:49 usp000hjuq 15131413 11:53:49 5.8 w y 16.5 km on 35.53 54.51 region:XX_type:event inline,title Strike-slip Semnan Province, Iran VII 0.55 g 4 dead, 40 injured, 800 displaced The 2010 Damghan earthquake (also known as the Kuh-Zar earthquake) occurred in northern Iran at 11:53:49 local time 19:23:49 UTC on August 27 with a moment magnitude of 5.8 and maximum Mercalli intensity of VII (Very strong). This strike-slip event damaged and destroyed a number of small villages in a sparsely populated region near the Alborz mountain range. It left four people dead, 40 injured, and about 800 without homes. The deaths and injuries in this moderate event were attributed to the low-quality construction styles that are typical of the area. The Iranian Strong Motion Network provided data by which seismologists determined the type and extent of the slip as well as the peak ground acceleration. Other large and destructive earthquakes have affected Semnan Province, including several events in 856 AD and 1953. Tectonic setting Caspian Depression Geography of Iran Iranian Plateau The tectonics of Iran are dominated by the continental collision of the Arabian and Eurasian plates. The rate of convergence has been estimated at two centimeters per year for the past 10 million years; about half of that occurs across the Zagros fold and thrust belt. The northern Iran region near the Alborz mountains contains numerous reverse and left-lateral strike-slip faults that lie to the south of the Caspian Sea. The Astaneh strike-slip fault was a likely source of the 856 Damghan earthquake that caused the largest loss of life in the history of Iran—more than 200,000 deaths.Active Faults of the World https://books.google.com/books?id=aQUgAwAAQBAJ Yeats R. 2012 Cambridge University Press 978-0521190855 306, 313–315 January 13, 2018 November 22, 2019 https://web.archive.org/web/20191122014514/https://books.google.com/books?id=aQUgAwAAQBAJ live A more recent damaging event that also occurred near the Alborz mountain range was the 1953 Torud earthquake, in which more than 900 perished.Shahvar Zaré 2013 692 Earthquake Strike-slip tectonics thumb|USGS ShakeMap for the event|alt=Map of the epicenter region showing varying shaking intensities Similar to the 1953 Torud earthquake, the 2010 Damghan event took place in a rural area that exposed relatively few villages to strong shaking.Shahvar Zaré 2013 689 It occurred at 11:53 local time in the north-central desert region of Iran on a fault that dipped 78° to the northwest. Fault motion occurred on a NE–SW striking fault that was almost pure left-lateral strike-slip.Shahvar Zaré 2013 693 A Mercalli intensity of VII (Very strong) was observed in Kuh Zar and the nearby villages of Tuchahi, Kelu, and Shimi. In Hoseynian, Moalleman, Satveh, and Torud, the intensity was VI (Strong).Shahvar Zaré 2013 701 Some surface cracks and fissures were present near Tuchahi and Kelu villages, but no significant surface faulting occurred.Shahvar Zaré 2013 693 Damage Unreinforced masonry building The affected area has a low population density and has an abundance of homes that are constructed with local clay material by unskilled workers. The unreinforced stone masonry or adobe homes are sometimes overloaded single story structures with flat wooden roofs with steel beams. Most of these types of homes suffered partial collapse and led to a number of roof collapses. Fifty homes were destroyed, 300 were damaged, including a roof cave-in that left two women dead.Shahvar Zaré 2013 693 Overall, seven villages sustained damage and twelve were destroyed. Four people died, 40 were injured, and 800 were left homeless, but no major infrastructure (dams, bridges, or power stations) were impacted.Shahvar Zaré 2013 702 Strong motion Peak ground acceleration The first isoseismal map that was created in Iran was for the earlier 1953 Torud event. To focus on the association between the macroseismic effects and the instrumental intensity for the 2010 event, seismologists Mohammad P. Shahvar and Mehdi Zaré conducted a field investigation and interviews.Shahvar Zaré 2013 702 An isoseismal map that was created using the data aligned with a ShakeMap that was created by the Tehran-based International Institute of Earthquake Engineering and Seismology. The closest strong motion station was about 7 km us to the east of the origin of faulting and showed a horizontal acceleration of 0.55 g.Shahvar Zaré 2013 701 The peak ground acceleration and peak ground velocity that were attained from the Iranian Strong Motion Network were considered high for a moderate event.Shahvar Zaré 2013 689 Aftermath Seventy rescue personnel and ambulances arrived at Kuh Zar. People with minor injuries were treated by paramedics and discharged; others were taken to Damghan Hospital.A temporary accommodation camp was established for earthquake victims in Koh Zar Damghan area اردوگاه اسکان موقت برای زلزله زدگان در منطقه کوه زر دامغان ایجاد شد https://www.irna.ir/news/7170064/%D8%A7%D8%B1%D8%AF%D9%88%DA%AF%D8%A7%D9%87-%D8%A7%D8%B3%DA%A9%D8%A7%D9%86-%D9%85%D9%88%D9%82%D8%AA-%D8%A8%D8%B1%D8%A7%DB%8C-%D8%B2%D9%84%D8%B2%D9%84%D9%87-%D8%B2%D8%AF%DA%AF%D8%A7%D9%86-%D8%AF%D8%B1-%D9%85%D9%86%D8%B7%D9%82%D9%87-%DA%A9%D9%88%D9%87-%D8%B2%D8%B1-%D8%AF%D8%A7%D9%85%D8%BA%D8%A7%D9%86-%D8%A7%DB%8C%D8%AC%D8%A7%D8%AF 5 January 2023 Islamic Republic News Agency 28 August 2010 fa Interior Minister, Mostafa Mohammad-Najjar, along with other government officials and members of the Iranian Red Crescent Society (IRCS), visited Kuh Zar the following day.وزیر کشور وارد روستای زلزله زده کوه زر دامغان شد https://www.irna.ir/news/7170066/%D9%88%D8%B2%DB%8C%D8%B1-%DA%A9%D8%B4%D9%88%D8%B1-%D9%88%D8%A7%D8%B1%D8%AF-%D8%B1%D9%88%D8%B3%D8%AA%D8%A7%DB%8C-%D8%B2%D9%84%D8%B2%D9%84%D9%87-%D8%B2%D8%AF%D9%87-%DA%A9%D9%88%D9%87-%D8%B2%D8%B1-%D8%AF%D8%A7%D9%85%D8%BA%D8%A7%D9%86-%D8%B4%D8%AF 5 January 2023 Islamic Republic News Agency 28 August 2010 The Minister of the Interior entered the earthquake-stricken village of Kouh Zar Damghan fa A temporary camp with 50 tents was established in the village. Food, beds and other necessary items were supplied to the village by the IRCS. See also List of earthquakes in 2010 List of earthquakes in Iran References ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009) http://www.isc.ac.uk/iscgem/index.php ISC January 19, 2015 International Seismological Centre Version 2.0 November 29, 2015 November 25, 2016 https://web.archive.org/web/20161125091901/http://www.isc.ac.uk/iscgem/index.php live Sources The 27 August 2010 Mw 5.7 Kuh-Zar earthquake (Iran): field investigation and strong-motion evidence M. P. Shahvar M. Zaré 2013 Natural Hazards 66 2 689–706 10.1007/s11069-012-0507-8 2013NatHa..66..689S 128701440 Further reading Deaths and Injuries due to the Earthquake in 2010. Damghan's Earthquake: A Case Study http://irje.tums.ac.ir/browse.php?a_code=A-10-25-20&slc_lang=en&sid=1&sw=Death S. Asgharzadeh K. Holakouie Naieni A. Ardalan E. Ahmadnezhad S. Zaeri 2012 Iranian Journal of Epidemiology 8 1 54–61 fa Analysis of the 2010 Damghan earthquake in Central Alborz (Mw 5.7) and fault-plane identification by H.C method 2022 Armoontan F. Rezapour M. Azizi S. Iranian Journal of Geophysics 15 4 15–27 10.30499/IJG.2021.255884.1299 External links M5.8 – northern Iran – United States Geological Survey 5.9 magnitude Damghan earthquake, 27 August 2010 – Geological Society of Iran 15131413 Category:Earthquakes in Iran Category:2010 earthquakes Category:2010 in Iran Category:History of Semnan province Category:August 2010 in Asia Category:2010 disasters in Asia Category:2010s disasters in Iran