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فیزیک زمین و فضا، جلد ۵۰، شماره ۴، صفحات ۱۲۵-۱۳۶
عنوان فارسی Geometric Approach for Identifying Activated Fault Planes; Case Study: the ۲۰۱۴ Murmuri Earthquake, Northwestern Zagros, Iran
چکیده فارسی مقاله An analysis was conducted on the 2014 Murmuri earthquake sequence in the Zagros Mountains of Iran, aiming to determine the main fault plane. The sequence comprised of an initial Mw 6.2 earthquake, followed by five aftershocks with magnitudes exceeding 5.4. Events were relocated to enhance understanding of the hypocenter uncertainties. The primary earthquake, registering a magnitude of Mw 6.2, was followed by a sequence of events with Mw>5 within 24 hours of the main shock. To identify the earthquake’s source parameters, three components—local waveforms reported by the broadband networks of the Iranian Seismological Center (IRSC), the International Institute of Earthquake Engineering and Seismology (IIEES), and the Iraqi Seismological Network (ISN) were utilized. The analysis was conducted using the ISOLA software, employing a multiple-point source representation and the iterative deconvolution method. The events were relocated using the HYPOINVERSE code to ensure highly accurate results. The stations provided comprehensive coverage, contributing to the high reliability of the results. The method employed in the paper is the H-C method. This simple and readily applicable technique proves highly effective when precise information on the event location and its Centroid Moment Tensor (CMT) solution is available. The findings indicate that the Mountain Front Fault (MFF) can be identified as the causative fault plane of the event.
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Geometric Approach for Identifying Activated Fault Planes; Case Study: the 2014 Murmuri Earthquake, Northwestern Zagros, Iran
چکیده انگلیسی مقاله An analysis was conducted on the 2014 Murmuri earthquake sequence in the Zagros Mountains of Iran, aiming to determine the main fault plane. The sequence comprised of an initial Mw 6.2 earthquake, followed by five aftershocks with magnitudes exceeding 5.4. Events were relocated to enhance understanding of the hypocenter uncertainties. The primary earthquake, registering a magnitude of Mw 6.2, was followed by a sequence of events with Mw>5 within 24 hours of the main shock. To identify the earthquake’s source parameters, three components—local waveforms reported by the broadband networks of the Iranian Seismological Center (IRSC), the International Institute of Earthquake Engineering and Seismology (IIEES), and the Iraqi Seismological Network (ISN) were utilized. The analysis was conducted using the ISOLA software, employing a multiple-point source representation and the iterative deconvolution method. The events were relocated using the HYPOINVERSE code to ensure highly accurate results. The stations provided comprehensive coverage, contributing to the high reliability of the results. The method employed in the paper is the H-C method. This simple and readily applicable technique proves highly effective when precise information on the event location and its Centroid Moment Tensor (CMT) solution is available. The findings indicate that the Mountain Front Fault (MFF) can be identified as the causative fault plane of the event.
کلیدواژه‌های انگلیسی مقاله moment tensor,Murmuri,fault plane,H-C method,ISOLA
نویسندگان مقاله Maryam Abbasian |
Department of Seismology, Institute of Geophysics, University of Tehran, Tehran, Iran.

Mehdi Rezapour |
Department of Seismology, Institute of Geophysics, University of Tehran, Tehran, Iran.

نشانی اینترنتی https://jesphys.ut.ac.ir/article_100462_1268d58e763232d2ad22bd4f0ec07dc9.pdf
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