Abstract Employing a dual frequency GPS-receiver, ionospheric total electron (TEC) measurements have been in progress at Agra station in India (Geograph. lat. 27.2°N, long. 78°E) since 1 April 2006. In this paper, the TEC data have been analyzed for a period of one month from 1 April-1 May 2013 to examine the effect of multiple earthquakes, some of which occurred on the same day of 16 April 2013, and others occurred in the same month of April, 2013 in India and neighboring countries. We process the data using quartile and epoch analysis based statistical techniques and show that out of all the earthquakes, the one of the largest magnitude (M=7.8) that occurred on Pakistan-Iran border caused anomalous enhancements and depletions in TEC 1–9days before the occurrence of main sock. The E×B drift mechanism is suggested for the anomalies to occur in which the seismogenic electric field E is generated in a process suggested by Pulinets (2004).
Anomalous TEC variations associated with the strong Pakistan-Iran border region earthquake of 16 April 2013 at a low latitude station Agra, India
Advances in Space Research ; 53 , 2 ; 226-232
2013-11-05
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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