Seismic microzonation (Subsurface Imaging): A method of seismic zoning used to determine potential seismic impacts, including engineering terms, on specific existing and planned structures, territories of settlements, and individual regions. Scale of DSR maps: 1:500,000 - 1:200,000.

Seismic microzonation (Subsurface Imaging) (CMP, seismic microzoning, microseismorayoning, microseismicity): A method of seismic zoning that evaluates the influence of local (seismotectonic, geological, hydrogeological, geomorphological) features of the geological structure of areas. Scale of CMP maps for area objects: 1:25,000 and larger.

Seismic microzonation (Subsurface Imaging) — is the determination of seismicity of an exploration area based on materials refining the initial seismicity and detailed seismic zoning, taking into account local soil conditions from radar satellite imagery.
The study of seismic hazard based on remote sensing materials relies on identifying residual phenomena and deformations of the Earth's crust. Remote sensing materials allow the detection of zones of deep, regional, and local faults with associated seismic dislocations, which are the places of most probable occurrence of strong earthquakes.

Seismic micro-zoning (seismic micro-zoning, microseismic zoning, microseismics) is part of engineering and geological surveys when designing infrastructure facilities and monitoring the condition of existing facilities.

The complex of seismic micro-zoning works is carried out to assess the seismic hazard, which takes into account the influence of local ground conditions on the intensity of seismic vibrations on the Earth's surface and determines corrections that reduce or increase the seismicity of the area, set by maps of general or detailed seismic zoning. This type of work is especially important when it comes to particularly dangerous, technically complex or unique objects.

Recently, the importance of remote sensing technologies such as differential radar interferometry has been steadily growing, the use of which in combination with GLONASS/GPS observations allows not only to assess the intensity and direction of terrain shifts on a qualitative, but also on a quantitative level. Many spacecraft (spacecraft) have been launched for radar survey and technical and software tools have been developed that MKGT uses to perform seismic microdistricting.
The performance of seismic micro-zoning works based on remote sensing radar data is used along with classical geophysical and geochemical methods for engineering surveys for objects in earthquake-prone regions. Remote sensing radar data allows you to identify zones of regional and local faults immediately on significant territories, including those that are difficult to access.

Tasks accomplished through seismic microzonation include:

• Exploration of new construction sites;
• Obtaining sufficient and reliable data for selecting the optimal placement of structures;
• Providing project organizations with all necessary information to consider expected seismic ground motion parameters, including displacements along active faults, to ensure the safe operation of enterprises, buildings, structures, pipelines, exploitation of deposits, and the reconstruction, major repair, and restoration of objects, including buildings and structures, in seismically active areas.
• For the oil and gas industry, analyzing the relationship between hydrocarbon extraction and subsidence of the earth's surface is also relevant.

Tasks in Processing Radar Data from Satellite Imagery for Seismic microzonation (Subsurface Imaging):

• Selecting archival radar images of initial processing level or ordering new imagery;
• Interferometric data processing, including interpretation and analysis of satellite radar imagery materials to refine the location of tectonic faults zones and detect active tectonic faults in the study area, as well as identify displacements and deformations of the earth's surface and structures that occurred during the observation period;
• Geological interpretation of processing results - identifying potential active fault disruptions and assessing kinematic types and magnitudes of dislocations;
• Constructing maps of ground surface displacements based on satellite radar surveys;
• Identifying negative engineering-geological processes and phenomena in the area, compiling a map of negative engineering-geological processes and phenomena.

Advantages of Using Remote Sensing Data for Seismic microzonation (Subsurface Imaging)

One significant advantage of using satellite materials for seismic microzonation is the all-weather capability of radar satellite imaging, combined with the large area covered by a single scene. Additionally, there is an extensive multi-year archive of relevant materials, some of which are available in open access. This allows for the immediate use of accumulated data from several preceding years.