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Title: Ionospheric responses to the consecutive earthquakes over Canadian sector
Authors: Karthikeyan, Emperumal
Srinivas, Yasala
Emperumal, Kaliappan
Sathishkumar, Sundararaman
Keywords: Total electron content (TEC);Co-Scismic Ionospheric disturbance (CID);Earthquake;Canada
Issue Date: Dec-2020
Publisher: CSIR-NISCAIR, India
Abstract: Recently, two successive earthquakes with the magnitude of 6.8 and 6.5 which have occurred at 200 km southwest of Port Hardy, Canada (49˚N, 129˚W) during October 2018 have been considered for our study. The TEC data has been acquired from nearby stations of these two events. It has been observed that an increase in TEC anomalies of about 0.1 TECU of moderate earthquake events occurred on the geo-magnetically quiet days. Besides, increases in the TEC anomalies have shown wave-like structures in the ionosphere and it may have associated with acoustic waves generated by earthquakes. The faulting mechanism of the earthquake and the propagation velocity of waves by TEC have confirmed the presence of acoustic wave activity.
Page(s): 162-170
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.49(4) [December 2020]

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