GPS-derived estimates of crustal deformation in the central and north Ionian Sea, Greece: 3-yr results from NOANET continuous network data

被引：42
作者：
Ganas, A. [1 ]
Marinou, A. [2 ]
Anastasiou, D. [2 ]
Paradissis, D. [2 ]
Papazissi, K. [2 ]
Tzavaras, P. [2 ]
Drakatos, G. [1 ]
机构：
[1] Natl Observ Athens, Inst Geodynam, Athens 11810, Greece
[2] NTUA, Fac Rural & Surveying Engn, Higher Geodesy Lab, Athens, Greece
来源：
JOURNAL OF GEODYNAMICS | 2013年 / 67卷
关键词：
GPS; Strain; Seismicity; Ionian Sea; Greece;
D O I：
10.1016/j.jog.2012.05.010
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：
Ionian Sea (western Greece) is a plate-boundary region of high seismicity and complex tectonics, dominated by frequent earthquake activity along the right-lateral Cephalonia transform fault. We present an analysis of 30-s GPS data from five (5) continuous stations of NOANET (NOA permanent GPS network) spanning the period 2007-2010. Our results show N-S crustal shortening onshore Lefkada island of the order of 2-3 mm/yr which is probably related to increased locking on the offshore Lefkada fault. We also calculated a large difference (1:3) in the principal strain rate amplitude between extension and shortening for the central Ionian Sea. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：62 / 71
页数：10
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