Microseismic - seismic zone > 0.30

A layer that outlines the area in the territory of Sofia, where the seismic coefficient is higher than 0.30. The seismic factor is an indicator that reflects the expected load on earthquake buildings . The higher it is, the stronger seismic impacts must withstand the constructions in the area concerned. Value above 0.30 distinguishes territories with the highest seismic danger in the city, where the requirements for design and sustainability of buildings are the strictest. The drawing is based on studies of microseismismics, a detailed study of seismic behavior on the ground in different parts of the city. The layer is important for planning and construction, as it defines areas with increased requirements for seismic insurance. It is useful in assessing the risk for existing buildings, in planning new construction, as well as for engineering and seismological analyses of the territory. The data is current as of 01.01.2009.

Machine-translated from Bulgarian. Titles, descriptions and file names may contain errors; the data files themselves are unchanged.View the original in Bulgarian