Spatial distribution of similar aftershocks of a large inland earthquake, the 2000 Western Tottori earthquake, in Japan

被引：0
作者：
Misaki Hayashi
Yoshihiro Hiramatsu
机构：
[1] Kanazawa University,Graduate School of Natural Science and Technology
[2] Kanazawa University,School of Natural System, College of Science and Engineering
来源：
Earth, Planets and Space | 2013年 / 65卷
关键词：
Similar earthquake; asperity; aseismic slip; afterslip;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We detected similar aftershocks of the 2000 Western Tottori earthquake and we have examined their spatial distribution on the source fault. Many similar aftershocks are distributed in the northern part of the source fault, but few in the southern part. Specifically, similar aftershocks on the source fault are located outside of the asperity. The cumulative slip estimated from the similar aftershocks is 0.4–2.4 cm. The largest one is found at the edge of the major asperity. We observe that shallower events show a larger cumulative slip than deeper events. Large cumulative slip in the shallow depth in the northern part is coincident with the geodetic observation of afterslip. These facts suggest that similar aftershocks can provide information related to afterslip. However, the slip velocity estimated from both the slip and the recurrence interval of the similar aftershocks shows no distinct distribution.
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页码：1587 / 1592
页数：5
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