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It is well known that geomagnetic field varies in time, as well as in space. Besides, the world magnetic models which are the main sources of information concerning the values of geomagnetic field elements in a particular place, we present more precise and accurate model of these elements covering the territory of Bulgaria. Our study uses information from the last absolute geomagnetic survey involving measurements in 473 points, secular data from Panagyurishte (PAG) and several other Intermagnet observatories near...

In this research, the term risk follows the definition by the United Nations (UNDRO [1]) and refers to the expected losses from a particular hazard to a specified element at risk in a particular future time period. In our case, population exposure refers to the human occupancy of hazard zones in Bulgaria, or the population present within the hazard area that would be potentially directly affected by an event. Placed at the central part of the most seismically active region in Europe, the territory of Bulgaria is s...