Observed Ionospheric Effects of 23 October 2011 Van, Turkey Earthquake
Author
Arikan, F.
Deviren, M.N.
Lenk, O.
Sezen, U.
Arıkan, Orhan
Date
2012-01-17Source Title
Geomatics, Natural Hazards and Risk
Print ISSN
1947-5705
Publisher
Taylor and Francis
Volume
3
Issue
1
Pages
1 - 8
Language
English
Type
ArticleItem Usage Stats
163
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125
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Abstract
On 23 October 2011, a very strong earthquake with a magnitude of Mw = 7.2 shook Eastern Anatolia, and tremors were felt up to 500 km from the epicentre. In this study, we present an early analysis of ionospheric disturbance due to this earthquake using Global Positioning Satellite-Total Electron Content (GPS-TEC). The variability with respect to average quiet day TEC (AQDT) and variability between the consecutive days are measured with symmetric Kullback-Leibler divergence (SKLD). A significant variability in total electron content (TEC) is observed from the GPS stations in the 150 km neighbourhood of the epicentre eight and nine days prior to the earthquake. An ionospheric disturbance is observed from GPS stations even more than 1,000 km to the epicentre, especially those on the North Anatolian fault (NAF). The present results support the existence of lithosphere-atmosphere-ionosphere coupling (LAIC) associated with Van, Turkey earthquake. © 2012 Taylor and Francis Group, LLC.
Keywords
Eastern AnatoliaEpicentre
Global positioning
Ionospheric disturbance
Ionospheric effects
Kullback Leibler divergence
Neighbourhood
North Anatolian Fault
Total electron content
Turkey earthquake
Earthquakes
Ionosphere
Ionospheric electromagnetic wave propagation
Ionospheric measurement
Global positioning system
Permalink
http://hdl.handle.net/11693/21597Published Version (Please cite this version)
http://dx.doi.org/10.1080/19475705.2011.638027Collections
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