Surface deformations attributed to the Dehkhwarghan-Tabriz earthquake fault
عنوان دوره: نوزدهمین کنفرانس ژئوفیزیک ایران
نویسندگان
1موسسه ژئوفیزیک/دانشجو/دانشگاه تهران/تهران/ایران
2دانشگاه تهران، موسسه ژئوفیزیک
3Professor, Institute of Geophysics, University of Tehran, Tehran, Iran
چکیده
This paper introduces evidences of surface deformations attributed to the causative fault zone of the 1641 Dehkhwarghan-Tabriz destructive earthquake, Ms 6.8 that seriously affected the Osku and Khosrowshahr regions. This earthquake, totally ruined Osku and Khosrowshahr and caused 1200 fatalities. Macroseismic epicenter of this earthquake is proposed to be near Osku. Plenty of normal faults and observed relay ramp imply fault damage zone, most possibly related to the Dehkhwarghan-Tabriz earthquake fault. Large number of springs (at least 172) surrounding the Osku, with noticeable increase in west of Osku, also confirms the existence of this damage zone. Such information is particularly important for studies of active tectonics and paleoseismology.
کلیدواژه ها
 
Title
Surface deformations attributed to the Dehkhwarghan-Tabriz earthquake fault
Authors
saeid rahimzadeh, Yasamin Moshasha, Noorbakhsh Mirzaei
Abstract
This paper introduces evidences of surface deformations attributed to the causative fault zone of the 1641 Dehkhwarghan-Tabriz destructive earthquake, Ms 6.8 that seriously affected the Osku and Khosrowshahr regions. This earthquake, totally ruined Osku and Khosrowshahr and caused 1200 fatalities. Macroseismic epicenter of this earthquake is proposed to be near Osku. Plenty of normal faults and observed relay ramp imply fault damage zone, most possibly related to the Dehkhwarghan-Tabriz earthquake fault. Large number of springs (at least 172) surrounding the Osku, with noticeable increase in west of Osku, also confirms the existence of this damage zone. Such information is particularly important for studies of active tectonics and paleoseismology.
Keywords
1641 Dehkhwarghan-Tabriz earthquake, Normal faults, Relay ramp, Osku