SEISMICALLY ACTIVE VORTEX STRUCTURE IN THE SEA OF JAPAN
The Sea of Japan’s vortex structure (JVS) was formed as a result of the rotational shift of the lateral process in dynamic interaction between the Pacific and Eurasian plates, which triggered the opening of the Japan marginal sea. In the process of the JVS formation a complex combination of horizontal and vertical tectonic movements occurred resulting in formation of the rotating magma diapir. Numerous earthquake epicenters indicating its seismic activity are confined to JVS. Subduction of the rotating Pacific lithospheric plate under the Eurasian plate caused the mantle level of seismicity, associated with the activization of the regmatic network.