FactSheet: FS2013-E-0001

Title:
Site Investigation of the Ahar-Varzeghan Earthquake in NW Iran of Auguest 11, 2012

Authour:
Masakatsu MIYAJIMA¹, Abdolhossein FALLAHI², Arjang SADEGHI², Ebad GHANBARI³, Hossein SOLTANI²,  Reza AMIRASLANZADEH⁴, Ali VAKILAZADSARABI⁴, Farzad Javan FOROUZANDEH⁵ and Robab SHEIKHALIZADEH5

1 Member of JSCE, Professor, School of Environmental Design, Kanazawa University, Kanazawa, Japan, miyajima@se.kanazawa-u.ac.jp
2 Assistant Professor, Azarbaijan Shahid Madani University, Tabriz, Iran
3 Emeritus Professor, University of Tabriz, Iran
4 Graduate Student, Kanazawa University, Kanazawa, Japan
5 Graduate Student, Azarbaijan Shahid Madani University, Tabriz, Iran

Key Facts
・Hazard type: Earthquake
・Date of disaster: August 11, 2012
・Location of the survey: East Azarbaijan County, Iran
・Date of the field survey: August 26th - 31st, 2012

Key findings:
1) The two earthquakes occurred as a result of oblique strike-slip faulting in the shallow crust of the Eurasian plate.  These earthquakes lay as inter plate type.
2) The maximum peak ground acceleration of the first event was 478 cm/s/s on horizontal component re-corded in Satarkhan dam and it of the second event was 532 cm/s/s on horizontal component recorded in Varzaghan.
3) The deaths were more than 330 persons. The significant amount of the death toll and structural damages are from adobe and stone buildings.
4) Electricity network of 25 villages were totally damaged.  Electricity rafts located on fault have fallen but rest of them in further distance from the fault was undamaged.
5) Earthquake caused gas network cut off for 18 thousand domestic users in stricken areas.
6) No significant damage was reported on water network.
Details of uprooted pile-supported buildings

Key Words:
the Ahar-Varzaghan Earthquake, field investigation, damage to houses and buildings, damage to lifelines

Paper: PDF 663.25KB