Ionospheric precursors of strong earthquakes observed using six GNSS stations data during continuous five years(2011-2015)

被引：1

作者：

H.E.Eshkuvatov ^{[1
,2
]}

B.J.Ahmedov ^{[1
,2
,3
]}

Y.A.Tillayev ^{[1
,2
]}

M.Arslan Tariq ^{[4
,5
,6
,7
]}

M.Ali Shah ^{[4
]}

Libo Liu ^{[5
,6
,7
]}

机构：

[1] Ulugh Beg Astronomical Institute

[2] National University of Uzbekistan

[3] Institute of Fundamental and Applied Research, National Research University TIIAME 4. Centre for Earthquake Studies, National Centre for Physics

[4] Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences

[5] College of Earth and Planetary Sciences, University of Chinese Academy of Sciences

[6] Heilongjiang Mohe Observatory of Geophysics, Institute of Geology and Geophysics, Chinese Academy of Sciences

来源：

Geodesy and Geodynamics | 2023年 / 14卷 / 01期

基金：

中国国家自然科学基金;

关键词：

GNSS; TEC; Earthquakes; Ionospheric precursors;

D O I：

暂无

中图分类号：

P315.728 [];

学科分类号：

070801 ;

摘要：

This study reports the morphological characteristics of anomalous variations in Global Navigation Satellite System Total Electron Content(GNSS-TEC) prior to the strong local earthquakes(EQ) that occurred during the period of 2011-2015.We have analyzed 20 earthquakes of magnitude M> 5.6.A statistical technique is implemented on the data of six GNSS stations located in Tashkent,Kitab,and Maidanak in Uzbekistan,and Islamabad,Multan,Quetta in Pakistan.The results show continuous anomalous variations in TEC during 24 h befo re the occupancy of local earthquakes.It is shown that the precursors before the occurrence of strong earthquakes,in particular of magnitude 5.7,7.7,7.5,7.8 and 7.3 are detected near Eastern Uzbekistan(26 May 2013),Southwestern Pakistan(24 September 2013),Hindukush region of Afghanistan(26 October 2015),and Central Nepal(25 April 2015) and(12 May 2015),respectively.The ionospheric anomalies appearing before the strong earthquakes at six GNSS stations are registered in 14cases(70%) out of 20 selected EQs.It is depicted that anomalies referred to as ionospheric precursors appeared about 1-7 days prior to the occurrence of strong earthquakes.

引用

页码：65 / 79

页数：15

共 39 条

[31] Pre-earthquake ionospheric anomalies registered by continuous GPS TEC measurements[J] . Liu J. Y.,Chuo Y. J.,Shan S. J.,Tsai Y. B.,Chen Y. I.,Pulinets S. A.,Yu S. B..Annales Geophysicae . 2004 (147)
[32] Quasielectrostatic model of atmosphere-thermosphere-ionosphere coupling
Pulinets, SA
Boyarchuk, KA
Hegai, VV
Kim, VP
Lomonosov, AM
[J]. MIDDLE ATMOSPHERE AND LOWER THERMOSPHERE ELECTRODYNAMICS, 2000, 26 (08): : 1209 - 1218
[33] Seismo-ionospheric signatures prior to M ＞= 6.0 Taiwan earthquakes[J] . Liu JY.,Pulinets SA.,Tsai YB.,Chuo YJ.,Chen YI..Geophysical Research Letters . 2000 (19)
[34] Seismic activity as a source of the ionospheric variability
Pulinets, SA
[J]. IRI 1997 SYMPOSIUM: NEW DEVELOPMENTS IN IONOSPHERIC MODELLING AN D PREDICTION, 1998, 22 (06): : 903 - 906
[35] GPS detection of ionospheric perturbations following the January 17, 1994, Northridge Earthquake[J] . Eric Calais,J. Bernard Minster.Geophysical Research Letters . 1995 (9)
[36] WHAT IS A GEOMAGNETIC STORM
GONZALEZ, WD
JOSELYN, JA
KAMIDE, Y
KROEHL, HW
ROSTOKER, G
TSURUTANI, BT
VASYLIUNAS, VM
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1994, 99 (A4) : 5771 - 5792
[37] Theory of electrokinetic effects occurring at the final stage in the preparation of a tectonic earthquake[J] . Dobrovolsky I.P.,Gershenzon N.I.,Gokhberg M.B..Physics of the Earth and Planetary Interiors . 1989 (1-2)
[38] ESTIMATION OF THE SIZE OF EARTHQUAKE PREPARATION ZONES
DOBROVOLSKY, IP
ZUBKOV, SI
MIACHKIN, VI
[J]. PURE AND APPLIED GEOPHYSICS, 1979, 117 (05) : 1025 - 1044
[39] Earthquake Prediction: A Physical Basis[J] . Scholz C H,Sykes L R,Aggarwal Y P.Science （New York, N.Y.） . 1973 (4102)

← 1 2 3 4 →