Normal- and oblique-slip of the 2008 Yutian earthquake: Evidence for eastward block motion, northern Tibetan Plateau

Lushan M S7.0 earthquake: A blind reserve-fault event

“…GPS study demonstrates that the crustal shortening across the Longmenshan thrust belt is not significant, and its present rate is less than 3 mm/a [16][17][18][19][20][21], or about 7 mm/a in a 700-km wide range across the thrust belt [22]. Two end-member models for the Qinghai-Tibetan Plateau have also been proposed to explain the crustal and upper mantle deformation from a geo-scientific perspective, including a distributed continuous deformation and its revised channel flow model [17,18,23], and a block-like motion model along the localized mega-strike-slip faults [3, 24,25]. The Lushan earthquake occurred along the southern segment of the Longmenshan thrust belt, where there are NE-striking and NW-dipping imbricate reverse faults, namely, from northwest to southeast, the Gengda-Longdong, YanjingWulong, Shuangshi-Dachuan and Dayi faults ( Figure 2).…”

Late Quaternary slip rate of the Batang Fault and its strain partitioning role in Yushu area, central Tibet

“…In recent years, a series of destructive earthquakes occurred around the Bayan Har block, such as the 1997 Mani earthquake, 2001 Kunlun earthquake, 2008 Wenchuan earthquake, 2010 Yutian earthquake, 2010 Yushu earthquake and 2013 Lushan earthquake. Great attention has been paid to the kinematics and seismicity of these boundary faults, such as Kunlun Fault (Lin et al, 2002;Xu et al, 2002), Longmen shan Fault (He et al, 2012;Shen et al, 2009;Xu et al, 2009), and Yulong Kashgar Fault (Elliott et al, 2010;Shan et al, 2011;Xu et al, 2013).…”

“…The Ganzi-Yushu Fault was only graphically drawn to be connected with Fenghuoshan Fault (Taylor and An, 2009;Wen et al, 2011;Xu et al, 2013). Structurally and geomorphically, the areas west of Yushu are characterized by more widely developed normal faults in the Qiangtang block and reverse faults in the Bayan Har block, while the areas east of Yushu are featured by large-scale single linear trace of strike slip fault.…”

Extensional Seismotectonic Motion and its Dynamics in the Eastern Margin of the Tibetan Plateau and its Surroundings

“…Some interested results of seismotectonic motion have been reported [12][13][14][15]. Many normal faulting type events concentrated on the high altitude region of the Tibetan plateau, i.e., in the region from the Gangdise mountains in the south to the Kunlun mountains in the north [16][17][18]. However, the thrust-faulting type event predominated the focus mechanism of earthquake occurrence in low altitude regions surrounding the Tibetan plateau [19].…”