Main features of the fluid regime during the development of earthquake foci

Abstract

The features of a fluid regime in the focus of an earthquake are considered. During the development of the focus, the fluid regime in its zone depends on the internal movement of fluids and their entry from outside. The main inflow of fluids and the increase in their pressure occur due to ascending filtration through subvertical conductive faults. Fluids may also flow from surface segments, which causes the majority of induced earthquakes. The close relationships between the mechanism of natural earthquakes and the fluids coming from the deep high-pressure zones point to the genetic similarity of degassing and seismicity of the tectonosphere.