2019 East Azerbaijan earthquake

Coordinates: 37°48′11″N 47°34′52″E / 37.803°N 47.581°E / 37.803; 47.581
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2019 East Azerbaijan earthquake
UTC+4:30)
Magnitude5.9 Mw
Depth20 km (12 mi)
Epicenter37°48′11″N 47°34′52″E / 37.803°N 47.581°E / 37.803; 47.581
Areas affectedIran
Max. intensityMMI VII (Very strong)
AftershocksMore than 610, largest is magnitude 4.8[1]
Casualties7 dead, 584 injured

The 2019 East Azerbaijan earthquake occurred at 03:17 local-time on November 8, 2019. This earthquake had a moment magnitude of 5.9 and had a shallow depth of 20 km.[2]

Tectonic setting

Iran lies within the complex zone of

strike-slip fault, which has been responsible for 7 historical earthquakes of magnitude greater than 6 since AD 858.[5] Other known active faults include a W-E trending fault between the cities of Ahar and Heris.[6] This same setting caused a magnitude 6.4 earthquake in August 2012, killing at least 38 and injured more than 3,200, 268 of which died later in hospitals.[7][8]

Earthquake

Modified Mercalli intensities in selected locations[2]
MMI
 Locations Population exposure
MMI VII (Very strong) Sarab 77,000
MMI VI (Strong) Hashtrud 83,000
MMI V (Moderate) Tabriz 1.28 million
MMI IV (Light) Ardabil 6.45 million

The magnitude 5.9 earthquake was a result of strike-slip faulting approximately 250 km to the northeast of the plate boundary between the

Eurasian plates.[2] The focal mechanism indicated faulting in a left-lateral sense beneath Mount Bozgush. Aftershocks distribution suggest rupture along a NE–SW plane. It is thought to have ruptured along a buried parallel splay branch of the Shalgun–Yelimsi Fault. A fault dimension of 3.8 × 4.9 km2 was estimated, buried beneath the surface. It produced a maximum slip of 0.8 meter at 5 km depth, while a large area of slip occurred at between 2 km and 11 km depth.[9]

Impact

Damage and casualties

Six cities and 145 villages with a combined population of 121,307 were affected by the earthquake, out of which thirty were completely destroyed.

East Azerbaijan Province were the towns of Miyaneh and Sarab. Some livestock were also killed due to the collapse of barns and sheds.[11] The earthquake caused landslides and damaged transportation routes, telecommunication, water sewages, and caused fires due to the damage of gas pipelines. Five people were killed in the earthquake and 66 were injured by falling debris. 518 others were injured due to quake-caused panic, and two others died due to carbon monoxide poisoning from fires caused by the quake.[12]

Moderate shaking was felt in Tabriz, where six houses collapsed and over 400 were damaged.[11][13]

Relief

3,091 tents, over 3,000 food parcels, 3,521 blankets, 4,595 bottles of water, 440 kitchen sets and 350 pieces of bread were sent to displaced victims of the earthquake.[12]

See also

References

  1. doi:10.22059/JESPHYS.2020.295046.1007182
    .
  2. ^ a b c "M 5.9 – 59 km NE of Hashtr?d, Iran". earthquake.usgs.gov.
  3. doi:10.1111/j.1365-246X.2004.02092.x
    .
  4. doi:10.1029/2003tc001530
    .
  5. doi:10.1016/j.tecto.2011.04.008
    .
  6. ^ Hoseinpour, M.; Zare M. (2009). "Seismic Hazard Assessment of Tabriz, a City in the Northwest of Iran" (PDF). Science Information Database. Retrieved 12 August 2012.
  7. ^ "M 6.4 – 26 km SW of Ahar, Iran". 11 August 2012. Retrieved 1 August 2021.
  8. ^ Torbati, Yeganeh (12 August 2012). "Two earthquakes in Iran kill 250 and injure 2,000". Reuters. Dubai. Retrieved 12 August 2012.
  9. S2CID 228958708
    .
  10. ^ "5.9 quake in northwestern Iran kills 5, destroys 30 villages". kurdistan24.net.
  11. ^ a b "Deadly magnitude 5.9 earthquake hits northwestern Iran". aljazeera.com.
  12. ^ a b "Iran: Earthquake – Information Bulletin (13 Nov 2019) – Iran (Islamic Republic of)". ReliefWeb. Retrieved 2019-11-14.
  13. ^ "Magnitude 5.9 earthquake kills 5, injures 300 in Iran". dailysabah.com. 8 November 2019.

External links

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