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http://hdl.handle.net/2122/3510| Authors: | Djadkov, P. G.* Mikheev, O. A.* Minenko, M. I.* Sobolev, O. A.* |
Title: | Some results of tectonomagnetic monitoring in the epicentral zone of the M7.5 Altay earthquake, September 27, 2003 | Issue Date: | Feb-2007 | Series/Report no.: | 1/50 (2007) | URI: | http://hdl.handle.net/2122/3510 | Keywords: | tectonomagnetic monitorng piezomagnetic model aftershock process stress change |
Subject Classification: | 04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring | Abstract: | We report tectonomagnetic results from the epicentral area of the 27 September 2003 Ms=7.5 earthquake in the Altay mountains, southern West Siberia. The results were obtained in the first three survey campaigns in early October 2003, late November 2003, and latest May-early June 2004 using an array of one continuous-measurement station and fifteen repeated-survey sites. Changes in total geomagnetic field associated with seismic activity were mostly of regional scale and usually did not exceed 1.5 nT. The M=4.5 aftershock of 31 May 2004 was accompanied by an anomaly of 1-2 nT. The location of the anomaly within highly magnetic rocks can be evidence of its piezomagnetic origin. |
| Appears in Collections: | Annals of Geophysics |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 4Djadkov.pdf | 2.25 MB | Adobe PDF | View/Open |
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