How Long is an Aftershock Sequence?

被引：8
|
作者：
Godano, Cataldo [1 ]
Tramelli, Anna [2 ]
机构：
[1] Univ Naples 2, Dept Math & Phys, Caserta, Italy
[2] Ist Nazl Geofis, Sez Napoli, Naples, Italy
来源：
PURE AND APPLIED GEOPHYSICS | 2016年 / 173卷 / 07期
关键词：
LAW; FRICTION; DECAY;
D O I：
10.1007/s00024-016-1276-1
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The occurrence of a mainschok is always followed by aftershocks spatially distributed within the fault area. The aftershocks rate decay with time is described by the empirical Omori law which was inferred by catalogues analysis. The sequences discrimination within catalogues is not a straightforward operation, especially for low-magnitude mainshocks. Here, we describe the rate decay of the Omori law obtained using different sequence discrimination tools and we discover that, when the background seismicity is excluded, the sequences tend to last for the temporal extension of the catalogue.
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页码：2295 / 2304
页数：10
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