Identifying Corresponding Earthquake of Mobarak Abad Landslide, Northeast Tehran, Iran
محل انتشار: مجله معدن و محیط زیست، دوره: 14، شماره: 4
سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 63
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شناسه ملی سند علمی:
JR_JMAE-14-4_018
تاریخ نمایه سازی: 13 مهر 1402
چکیده مقاله:
Landslides are defined as the downward movement of a portion of land materials under the direct influence of gravity. Landslides would get triggered by a wide spectrum of initiative factors such as earthquakes as a site effect of that event. In the vicinity of Tehran, significant historical earthquakes have occurred; therefore, tracing them could enhance the Tehran’s historical earthquake catalogue, due to the reason Tehran is a metropolitan and capital of Iran. However, paleoseismology could not determine the magnitude and seismic characteristics of historical earthquakes. Mobarak Abad landslide is a large and historical landslide located on Haraz road, a vital artery connecting Tehran to the Mazandaran Province, and there are significant faults like Mosha, North Alborz, and Khazar in its neighborhood. Hence, it is probable that this landslide occurred due to the generation of dynamic force resulting from an earthquake. Therefore, in this study, the geometrical characteristics of the landslide were measured by field surveying. Then with the empirical equations proposed by various researchers, we estimated the landslide volume and the magnitude of the corresponding earthquake, respectively. In the following, the epicenter and hypocenter of all the historical earthquakes within ۲۰۰ kilometers of the landslide were identified. Then we utilized some conditions such as Keefer's graphs, error value in epicenter location, and peak ground acceleration to omit earthquakes and identify the corresponding earthquake event. The results demonstrate that two earthquakes of ۱۸۳۰ AD and ۸۵۵ AD with a maximum acceleration of ۰.۱۶g are more probable than the ۷۴۳ AD earthquake.
کلیدواژه ها:
نویسندگان
Erfan Amini
School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran.
Masoud Mojarab
Bonyan Zamin Paydar Consulting Engineers, Tehran, Iran.
Hossein Memarian
School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran.
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