Study of Selected Events in the Caucasus in a Seismic Discrimination Context

Analysis of Selected Seismic Events from Asia in a Seismic Discrimination Context

“…negative and positive first motions at teleseismic distances suggest that these are not thrust faults and that probably no common source mechanism for all these events exists (Sobel et al, 1977c). Waveforms for the events were not similar at either LASA or NORSAR.…”

“…Mountains generally follows the northwest-southeast trend of the principal geological features: thrust faulting, with the fault planes perpendicular to the trend of the geological structures, is dominant, but considerable variance to the fault-plane orientations exists and strike-slip motion is not uncommon (Sobel et al, 1977c). In the Baikal rift zone, normal faulting is prevalent; Molnar, P., and P. Tapponnier, 1975.…”

“…Sobel and von Seggern, 1976;Sobel et al, 1977aSobel et al, , 1977bSobel et al, , and 1977c, to identify the major source and path effects which impact upon discrimination of Asian events and to assess likelihood of correct event identification in these regions. However, the problem of regional effects can be circumvented by limiting the computation of a discriminant function for earthquakes and explosions to events within a geophysically distinct region.…”