INVESTIGATION OF SOURCE CHARACTERISTICS OF THE 1997 ARDABIL EARTHQUAKE

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ATEFI SANAM; GHEITANCHI MOHAMMAD REZA; ABREDARI HOSSEIN

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ISSN: 2588-4824

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Journal: JOURNAL OF THE EARTH Year:2012 | Volume:7 | Issue:23 Page(s): 19-30

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Title

INVESTIGATION OF SOURCE CHARACTERISTICS OF THE 1997 ARDABIL EARTHQUAKE

Author(s)

ATEFI SANAM | GHEITANCHI MOHAMMAD REZA | ABREDARI HOSSEIN | Issue Writer Certificate

Keywords

ARDEBIL EARTHQUAKEQ2

FOCAL MECHANISMQ2

STRESS DROPQ2

SEISMIC MOMENTQ2

Abstract

The 28th February, 1997, earthquake is the largest and the most destructive earthquake in Ardabil Province and the largest recorded earthquake in NW Iran since the 1990 Rudbar earthquake. The result of teleseismic waveform modeling in this study, indicates that the source process of this earthquake follows mainly two subevents model and FOCAL MECHANISM of the mainshock is mainly strike slip. The source time function suggests that the main energy was released during the first 10 seconds, the total SEISMIC MOMENT was calculated to be ƩM0=1.89×1025 dyn-cm, the obtained moment magnitude was Mw=6.2. The calculated maximum dislocation was about 27 cm and the STRESS DROP was estimated to be 149 bar. Rupture during the mainshock initiated around the hypocenter and extended unilaterally to the northwest. The results of this study are in agreement with the result of previous studies.

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APA: Copy

ATEFI, SANAM, GHEITANCHI, MOHAMMAD REZA, & ABREDARI, HOSSEIN. (2012). INVESTIGATION OF SOURCE CHARACTERISTICS OF THE 1997 ARDABIL EARTHQUAKE. JOURNAL OF THE EARTH, 7(23), 19-30. SID. https://sid.ir/paper/193054/en

Vancouver: Copy

ATEFI SANAM, GHEITANCHI MOHAMMAD REZA, ABREDARI HOSSEIN. INVESTIGATION OF SOURCE CHARACTERISTICS OF THE 1997 ARDABIL EARTHQUAKE. JOURNAL OF THE EARTH[Internet]. 2012;7(23):19-30. Available from: https://sid.ir/paper/193054/en

IEEE: Copy

SANAM ATEFI, MOHAMMAD REZA GHEITANCHI, and HOSSEIN ABREDARI, “INVESTIGATION OF SOURCE CHARACTERISTICS OF THE 1997 ARDABIL EARTHQUAKE,” JOURNAL OF THE EARTH, vol. 7, no. 23, pp. 19–30, 2012, [Online]. Available: https://sid.ir/paper/193054/en

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