2024-03-29T09:07:33Z
https://repository.dl.itc.u-tokyo.ac.jp/oai
oai:repository.dl.itc.u-tokyo.ac.jp:00032538
2022-12-19T05:29:37Z
80:4535:4613:4614
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2003年イラン・バム地震の余震観測と初期震源決定
Temporal Seismic Observation and Preliminary Hypocenter Determination of Aftershocks of the 2003 Bam Earthquake, Southeastern Iran
Suzuki, Sadaomi
125462
Sayyed, Mahmoud Fatemi Aghda
125463
Nakamura, Takeshi
125464
Matsushima, Takeshi
125465
Ito, Yoshihiro
125466
Hossein, Sadeghi
125467
Mehdi, Maleki
125468
Arash, Jafar Gandomi
125469
Sayyed, Keivan Hosseini
125470
51.1
the 2003 Bam earthquake
seismic observation
aftershock
hypocenter
source fault
application/pdf
We investigate the hypocenter distribution of aftershocks of the 26 December, 2002 Bam earthquake Mw 0.5 using a temporal seismic network installed for 1 month from 6 February, 2004. Preliminary hypocenters were determined using automatic phase-picking and calculating software. The epicenters are distributed linearly about 20km in length parallel 3.5km west of the Bam fault, and extend from the south of Bam city to the heavily damaged area of eastern Bam city including Arg-e-Bam. The hypocenters are distributed vertically or slightly leaning toward the east in the depth range from 0km to 15 km. Using the hypocenter distribution we propose a schematic 3-D structure model of the source fault distinguished from the Bam fault. Eastern Bam city is located just above the northern part of the source fault and also on the rupture propagation direction from the asperity. It may be a major reason why eastern Bam city suffered the heaviest damage.
departmental bulletin paper
東京大学地震研究所
2004
application/pdf
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo
3-4
79
37
45
AN00162258
00408972
https://repository.dl.itc.u-tokyo.ac.jp/record/32538/files/IHO79302.pdf
eng