2021 Hormozgan earthquakes

The 2021 Hormozgan earthquakes was a doublet earthquake event in Iran that occurred on November 14, 2021 with magnitudes of 6.0 and 6.4 on the moment magnitude scale. The two quakes occurred just a minute and a half apart,[5][2] killing 2 people and injuring a further 100.[6][7]

2021 Hormozgan earthquakes
2021 Hormozgan earthquakes is located in Iran
2021 Hormozgan earthquakes
UTC time2021-11-14 12:07:03
 2021-11-14 12:08:38
ISC event621403058
 621403060
USGS-ANSSComCat
 ComCat
Local dateNovember 14, 2021
Local time15:37:03
 15:38:38
Magnitude6.0 Mwb
6.4 Mw
Depth9 km (5.6 mi)
10 km (6.2 mi)
Epicenter27.717°N 56.067°E / 27.717; 56.067
Total damage$165 million USD[1]
Max. intensityIX (Violent)[2][3]
Peak acceleration0.58 g[4]
LandslidesYes
Casualties2 dead, 98 injured

Tectonic setting

Bandar Abbas lies at the southern margin of the collision zone between the Eurasian Plate and the Arabian Plate. This collision has created the well known Zagros Mountains and the Iranian Plateau. The main fault system that runs through the Zagros Range is the Zagros fold and thrust belt, which has caused many destructive earthquakes in Iran over the years.[8]

Earthquakes
Damage to a building.

The first quake was initially measured at magnitude 6.1, but was later revised to 6.0 by the United States Geological Survey. A minute and a half later, the second quake happened. It was initially measured at magnitude 6.4 by the Iranian Seismological Center but was revised to 6.3 later. This event is considered a doublet earthquake because there were two earthquakes of similar size occurring in the same area a short time apart. The second earthquake had an intensity of IX (Violent) on the Modified Mercalli intensity scale.[5][2] The quakes were felt as far away as Dubai as well, however not much damage was caused there due to the low intensity of shaking in the area.[9]

Impact

The earthquake triggered a landslide in the mountains of the Geno Biosphere Reserve in the Hormozgan Province.[9] Two people were killed; one by a falling utility pole, and the other died while running from his home.[6][10] A total of 98 people were injured mostly due to widespread panic and some were injured from falling debris.[11][7]

The total cost of damage is estimated at 700 trillion Iranian tomans ($US 165 million).[12] In the city of Fin in Bandar Abbas County, roughly 2,125 structures were destroyed and 1,025 damaged.[13] An official said that the worst damages were in the villages Gishan Gharbi, Ab Shirin and Rudshour.[14]

See also

References
  1. National Geophysical Data Center / World Data Service (NGDC/WDS) (2021). "Significant Earthquake Database" (Data Set). National Geophysical Data Center, NOAA. doi:10.7289/V5TD9V7K.
  2. "M 6.4 - 63 km NNW of Bandar Abbas, Iran". earthquake.usgs.gov. Archived from the original on 2021-11-14. Retrieved 2021-11-15.
  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.
  4. "Report on Doublet Earthquakes of November 14th, 2021 – Finn, Hormozgan Province" (PDF). emsc-csem.org. Archived (PDF) from the original on 2021-11-23. Retrieved 2022-04-20.
  5. "M 6.0 - 62 km NNW of Bandar Abbas, Iran". earthquake.usgs.gov. Archived from the original on 2021-11-14. Retrieved 2021-11-15.
  6. لندن, کیهان (2021-11-14). "وقوع زلزله‌ شدید در جنوب ایران؛ ۲ کُشته، قطع برق، ریزش کوه و هشدار سونامی!". KayhanLondon کیهان لندن (in Persian). Retrieved 2021-11-15.
  7. "وقوع دو زلزله‌ بزرگ در استان هرمزگان؛ دست‌کم دو نفر کشته و ۷۰ تن مصدوم شده‌اند". رادیو فردا (in Persian). Retrieved 2021-11-15.
  8. "Arabian Plate - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 2021-11-15.
  9. "Strong earthquakes hit southern Iran, felt in Dubai". BNO News. 2021-11-14. Retrieved 2021-11-15.
  10. ایران, پایگاه اطلاع رسانی شبکه خبر صدا و سیمای جمهوری اسلامی (15 November 2021). "افزایش مصدومان زلزله هرمزگان به ۲۷ نفر". fa (in Persian). Retrieved 15 November 2021.
  11. "تازه‌ترین اخبار از زلزله جنوب ایران| خسارت ۳۰ تا ۱۰۰ درصدی زلزله به منطقه فین/ ۹۹ مصدوم تاکنون/ وقوع ۴۴ ‌پس‌لرزه + جزئیات" (in Persian). Tasnim News Agency. 15 November 2021. Retrieved 15 November 2021.
  12. "خسارت ۷۰۰ میلیارد تومانی زلزله به واحدهای مسکونی و زیرساخت‌ها در هرمزگان/ حدود سه هزار واحد مسکونی نیازمند بازسازی، تعمیر و احداث هستند" (in Persian). Iranian Labour News Agency. 15 November 2021. Retrieved 15 November 2021.
  13. "Risklayer Explorer". risklayer.com.
  14. "شمار مصدومان زلزله در استان هرمزگان به ۹۹ نفر رسید؛ تخریب ۸۰ درصدی بسیاری از خانه های روستایی" [The number of earthquake victims in Hormozgan province reached 99; 80% demolition of many rural houses] (in Persian). Radio France Internationale. 15 November 2021. Retrieved 15 November 2021.
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