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http://nopr.niscpr.res.in/handle/123456789/25665| Title: | Possible detection of ionospheric disturbances during the Sumatra-Andaman islands earthquakes of December, 2004 |
| Authors: | Chakrabarti, Sandip K Saha, M Khan, R Mandai, S Acharyya, K Saha, R |
| Keywords: | Earthquake;Ionospheres;Ionospheric disturbances;Radio waves;VLF |
| Issue Date: | Oct-2005 |
| Publisher: | NISCAIR-CSIR, India |
| IPC Code: | G01V1/36 |
| PACS No.: | 91.30.Px; 94.30.Va; 95.85.bh; 96.35.Kx |
| Abstract: | The results of the continuous monitoring of ionospheric disturbances using very low frequency (VLF) radio waves during the recent Sumatran earthquake are presented. Strong and anomalous shifts in the sunset-terminator are found during 22-31 Dec. 2004. Anomalous behaviours in daytime observation are also detected. On 26 Dec. 2004, there were altogether 23 major earthquakes and aftershocks (magnitudes 5.0-9.0 on Richter scale). There were JO such earthquakes on 27 Dec., 2 on 28 Dec., 7 on 29 Dec. and 4 on the 30 Dec. 2004. Given that there was no major earthquake on 22 December, though anomaly began on that day, it is believed that VLF monitoring could be a useful tool for earthquake predictions as well. |
| Page(s): | 314-318 |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Appears in Collections: | IJRSP Vol.34(5) [October 2005] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJRSP 34(5) 314-318.pdf | 845.31 kB | Adobe PDF | View/Open |
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