Browse

The parameters of strong ground motions necessary for seismic hazard assessing of construction sites have pronounced regional differences. In inaccessible and poorly studied areas, the development of a ground motion prediction equation (GMPE) requires determination of regional characteristics of the radiation and propagation of seismic waves, in particular, the quality factor of the lithosphere. This work is devoted to determination of the quality factor and its frequency dependence for the Lena Delta, one of the ...

Receiver function analysis is a critical tool in seismology, used to study the deep structure of the crust and upper mantle. Information about the deep structure of the crust and seismicity is important initial data for developing a source model and seismic hazard assessment. The presence of sharp discontinuities beneath the monitoring station induces the generation of converted body waves, which propagate at slower velocities than those of the primary P-wave. Receiver function analysis utilizes the lag between th...

The Arctic Seas are of particular interest now in connection with the prospects for their development. At the same time, the construction of critical and industrial infrastructure at sea must be preceded by a thorough assessment of possible geohazards, including dangerous landforms, earthquakes, geofluid outflows, marine landslides, soil liquefaction, tsunamis, etc. The purpose of the study is to highlight various seismological applications of the records obtained recently in the Laptev Sea and other Arctic Seas o...

During the exploitation of offshore deposits, earthquakes of technogenic nature may occur. Currently working geodynamic systems on the Korchagin and Filanovsky platforms in the North Caspian Sea were created and deployed. In addition, since 2007, for several years, periodic monitoring of local seismicity at the Kravtsovskoye field in the Baltic Sea has been carried out. As a result of seismological monitoring, it was found the presence of earthquake epicenters in the oil production region on the D6 platform and th...

The Laptev Sea region is one of the most interesting because it is a transition zone between the spreading Gakkel ridge and the structures of the continental margin of the Northern Eurasia. Nevertheless, the region is relatively little studied, leaving many questions open concerning its seismic and geodynamic characteristics. The purpose of the paper is an introduction into the Laptev Sea region seismicity, seismotectonic and geodynamic characteristics including short overview of local overland and offshore instru...