Saturday, 23 December 2017

Magnitude 4.9 Earthquake in Tehran Province, Iran.

The United States Geological Survey recorded a Magnitude 4.9 Earthquake at a depth of 10.0 km about 2 to the southwest of the city of Malard, in Tehran Province, Iran, slightly before 11.30 pm local time (slightly before 8.00 pm GMT) on Wednesday 20 December 2017. The event was felt across much of northern Iran, but there are no reports of any damage or casualties.

The approximate location of the 12 December 2017 Kerman Earthquake. USGS.

Iran is situated on the southern margin of the Eurasian Plate. Immediately to the south lies the Arabian Plate, which is being pushed northward by the impact of Africa from the south. This has created a zone of faulting and fold mountains along the southwest coast of the country, known as the Zagros Thrust Belt, while to the northeast of this the geology is dominated by three large tectonic blocks, the Central Iran, Lut and Helmand, which move separately in response to pressure from the south, stretching and compressing the rock layers close to the surface and creating frequent Earthquakes, some of which can be very large.

 The movement of the Arabian Plate and extent of the Zagros Thrust Belt. Rasoul Sorkhabi/Geo ExPro.

To the northeast of this the geology is dominated by three large tectonic blocks, the Central Iran, Lut and Helmand, which move separately in response to pressure from the south, stretching and compressing the rock layers close to the surface and again creating frequent Earthquakes.

The population of Iran is particularly at risk from Earthquakes as, unlike most other Earthquake-prone nations, very few buildings in the country are quake-resistant. The majority of residential buildings in Iran are made of mud-brick, a building material particularly vulnerable to Earthquakes as the bricks often liquefy, trapping people inside and quickly asphyxiating them with dust. This is particularly dangerous at night when the majority of people are inside sleeping.

 Section through the Zagros Fold Belt. Sarkarinejad & Azizi (2007).

Witness accounts of Earthquakes can help geologists to understand these events, and the structures that cause them. The international non-profit organisation Earthquake Report is interested in hearing from people who may have felt this event; if you felt this quake then you can report it to Earthquake Report here.
 
See also...
 
http://sciencythoughts.blogspot.co.uk/2017/12/magnitude-59-earthquake-in-kerman.htmlhttp://sciencythoughts.blogspot.co.uk/2017/11/magnitude-73-earthquake-in-kermanshah.html
http://sciencythoughts.blogspot.co.uk/2017/08/magnitude-52-earthquake-in-hormozgan.htmlhttp://sciencythoughts.blogspot.co.uk/2017/05/twenty-one-confirmed-fatalities.html
http://sciencythoughts.blogspot.co.uk/2017/05/twenty-one-confirmed-fatalities.htmlhttp://sciencythoughts.blogspot.co.uk/2014/04/magnitude-50-earthquake-on-coast-of.html
Follow Sciency Thoughts on Facebook.

1 comment:

  1. Alhamdulillah kami sekeluarga ucapkan banyak terima kasih kepada KI RONGGO LAWE atas bantuan KI RONGGO LAWE kami sudah bisa membayar semua hutang hutang kami yang menumpuk setinggi gunung kami juga sudah bisah buka usaha KI RONGGO LAWE, dulunya si saya ragu ragu dan kurang percaya yang namanya pesugihan uang gaib tapi mencoba dan alhamdulillah ternyata KI RONGGO LAWE benar - benar bisa menbantu saya dengan pesugihan uang gaib sekali lagi terima kasih KI RONGGO LAWE salam sukkses selalu.
    kalau mau seperti saya hubungi KI RONGGO LAWE Tlp/WhatsApp : 0853-1403-1099, atau KLIK DISINI

    INILAH JENIS MACAM PESUGIHAN DAN BOCORAN TOGEL 2D 3D 4D 5D 6D.....
    KI RONGGO LAWE Tlp/WhatsApp : 0853-1403-1099 atau KLIK DISINI

    >PESUGIHAN TUYUL| PELARIS USAHA
    >PESUGIHAN UANG GAIB
    >PESUGIHAN JIN KHODAM
    >PESUGIHAN UANG ASMA
    >PESUGIHAN UANG SEPASANG
    >PESUGIHAN UANG BALIK
    >TRANSFER JANIN
    >PESUGIHAN PUTIH TAMPA TUMBAL
    >PESUGIHAN NIKAH JIN
    >PELARISAN DAGANG

    ReplyDelete