Document Type : Original Research Paper

Authors

1 International Institute of Earthquake. Engineering and Seismology, Tehran, Iran

2 Building and Housing Research Center, Tehran, Iran

Abstract

The December 20, 2007 earthquake has occurred three months after the September  16, 2007 earthquake near the Tabriz city in East Azarbaijan province. We have used SH- waves accelerographs data and Brune model to estimate the causative fault plane parameters. The strike, dip and rake have been estimated as 310o, 85o and 170o, respectively. The focal mechanism shows right- lateral strike slip, which is consistent with the North Tabriz Fault. This is the first focal mechanis for the North Tabriz fault based on the strong ground motion data.

Keywords

References

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