Poster of the Respublika Altay, Russian Federation Earthquake of 27 September 2003 - Magnitude 7.3

Tectonic Summary

This earthquake resulted from stresses originating with the collision of the Indian plate against the Eurasian plate. The collision of the two major plates has generated the Hima- layan mountains, far to the south of the epicenter of this earthquake, and produces deformation of the earth's crust over a broad region of central and eastern Asia. In the epicentral region of southern Russia, north-western China, eastern Kazakhstan, and western Mongolia, earthquakes of past decades have been caused by strike-slip faulting (as with this earthquake) and reverse faulting.

This earthquake is the largest in this region since an earthquake on December 20, 1761 that is thought to have had a magnitude of about 7.7


Thumbnail image of poster.


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