A violent earthquake of 7.5 magnitude occurred in Xinjiang Balikun county on June 11, 1842. It created visible surface deformation and seismic fracture zone about 23 kilometers and 2 m. of vertical displacement. The intensity of seismic center was ten degrees.
This article is written according to the investigation in 1985 and the history records. Writers of this paper have represented the contours of seismic intensities, counting seismic magnitude, placement of the seismic center, depth of the seismic focus, seismic moment and stress drop and researching characteristics of the seismogenetic tectonics.