New data on the active faults and zones of modern lithosphere destruction in the Amur region

Migration of seismic and volcanic activity as display of wave geodynamic process

“…According to [Sherman, 2009], development of the comprehensive tectonophysical model of the seismic process and its solutions «will pave the direct way to obtaining the knowledge on spatial and temporal patterns of earthquakes and to prediction of earthquakes». However, our research results suggest that this way being 'battled through' in the regional direction [Sherman et al, 1992[Sherman et al, , 1994[Sherman et al, , 2001[Sherman et al, , 2008[Sherman et al, , 2011Sherman, 2009] may prove to be not so direct. According to [Sherman, Gorbunova, 2008], migration velocities V of earthquakes of energy class K ≥ 12 (M ≥ 4-5) vary from 1 to 100 km/year, and this conclusion is consistent with the above described correlations (2a, b) for the Pacific margin and Alpine-Himalayan belt, both being subduction zones.…”

“…-Physical modelling of formation of large faults in the lithospheric extension zones, and determination of quantitative characteristics of the deformation process taking place in such zones [Sherman et al, 2001]; -Development of the original geodynamic model of space-time development of rift basins of the Baikal region and Transbaikalia [Lunina et al, 2009], -Development of a tectonophysical model of a seismic zone [Sherman, 2009], which confirms that faults are activated due to low deformation waves of excitation being generated by interplate and interblock movements of the lithosphere [Sherman, Gorbunova, 2008] and also occur in zones of slow migration of seismicity (i.e in zones of earthquake clusters which can be considered as the lithosphere blocks) [Novopashina, 2010;Sherman, 2009;Sherman et al, 2011].…”

“…Sherman and his colleagues provide a basis for linking two large zones of faulting in the Baikal rift zone and the Amur region; active fractures are identified, and it is shown that fault activation is manifested through seismicity, which is triggered by specific mechanisms, including slow deformation waves that pay a leading role in this process [Sherman et al, 2011]. Anyway, the overall picture of the seismic and geodynamic setting of the entire Baikal-Amur zone, considered as a global intraplate boundary, is still quite vague, 'regional' hypothetically cross-linked only for some separate locations.…”

Wave moment geodynamics

“…-An original geodynamic model is developed to show how rift basins in Pribaikalie and Transbaikalie develop in space and time [Lunina et al, 2009]; -A seismic zone is modelled in terms of tectonophysics [Sherman, 2009]; the model shows that sources of rare strong earthquakes are clustered in linear or arcshaped systems [Sherman, 2013] and migration velocities of earthquakes К≥12 (М≥4-5) range from 1 to 100 km per year [Sherman, 2013;Sherman, Gorbunova, 2008]; according to [Vikulin et al, 2012a[Vikulin et al, , 2012b, these values do not contradict with the relevant global data; -According to above-mentioned model, faults are activated by slow strain waves of excitation which are generated by interplate and interblock movements of the lithosphere [Sherman, Gorbunova, 2008] and can also occur in zones wherein seismicity is slowly migrating [Sherman, 2009[Sherman, , 2013Sherman et al, 2011]; a general assumption is that L≥l, wherein L is strain wave length and l is length of a fault activated by strain waves [Sherman et al, 2008]; -It is revealed that two major fault zones in the Baikal rift zone and the Amur River region are related; active faults are identified in both regions; it is established that the fault activation is manifested by seismicity and caused by trigger mechanisms with the leading role of slow strain waves [Sherman, 2013;Sherman et al, 2011].…”

“…The seismic and geodynamic setting of the entire Baikal-Amur River zone as a global interplate boundary [Sherman et al, 2011] has not been fully clarified yet, and the knowledge is mainly based on the regional and hypothetical conclusions that are 'cross-linked' only with regard to some separate ideas. With account of the current uncertainties, 'paving a pathway to regional earthquake forecasting' [Sherman, 2009[Sherman, , 2014Sherman, Gorbunova, 2008;Sherman et al, 1992Sherman et al, , 1994Sherman et al, , 2001Sherman et al, , 2011 may appear not that straight forward.…”