FactSheet: FS2018-E-0002

Title:
Site Investigation of the Sarpole-Zahab Earthquake, Mw 7.3 in SW Iran of November 12, 2017

Authour:
Masakatsu MIYAJIMA¹, Abdolhossein FALLAHI², Toshikazu IKEMOTO³, Meghdad SAMAEI⁴, Sadra KARIMZADEH⁵, Hendra SETIAWAN⁶, Farzad TALEBI⁷, Jafar KARASHI⁸

¹Professor, School of Geosciences and Civil Engineering, Kanazawa University,Kanazawa, Japan
²Assistant Professor, Azarbaijan Shahid Madani University, Tabriz, Iran
³Associate Professor, School of Geosciences and Civil Engineering, Kanazawa University, Kanazawa
⁴Doctor of Eng. graduated from Kanazawa University, Tehran, Iran
⁵JSPS research fellow, Dept. of Architecture and Building Eng., Tokyo Institute of Technology, Yokohama, Japan,
⁶Doctor candidate, Kanazawa University, Kanazawa, Japan
⁷Doctor candidate, Kyoto University, Kyoto, Japan
⁸Master of Eng. graduated from Azarbaijan Shahid Madani University, Tabriz, Iran

Key Facts:
・Hazard Type: Earthquake
・Date of the disaster: November 12, 2017
・Location of the survey : Kermanshah Province, Iran
・Date of the field survey: December 24th – 28th, 2017

Key findings:
1)The heighest recorded PGA was observed at Sarpole-Zahab station with the shortest epicentraldistance of 39 km, with 681 cm/s2, and 562 cm/s2 and 404 cm/s2 for longitude, transverse andvertical components, respectively.
2)The pseudo spectral acceleration at Sarpole-Zahab station indicates that the predominant groundshaking is with a period of 1sec or less, and there are not many long-period components in thenear-fault ground motions. This period range usually affects the two to six stories structures in Iran.
3)This earthquake triggered massive landslides in the mountainous areas close to Mela Kabood andGoorchi Bashi villages, which located to the north of the Sarpole-Zahab City. The largesst landslidereached an area of 4 km long and 1 km wide.
4)After the earthquake, three cities of Sarpole-Zahab, Qasre Shirin and Tazehabad and the villages intheir territory had 100% power outage.
5)Thirteen cities of Kermanshah Province were damaged to water supply system, and water was cutfor two weeks in seven cities because of water contamination.

Key Words:
the Sarpol-Zahab Earthquake, field investigation, damage to houses and buildings, mi-crotremor measurements, damage to lifelines

Paper: PDF 3,712KB