Deep Carpathian Earthquake of October 26, 1802

Using original sources of information is an important requirement in historical seismology. Modern technologies make it much easier to access old papers and other, before hardly accessible archive materials. The new possibilities lead to publications in which previously studied historical earthquakes are revised. Such is this publication. The main aim is to present newly found macroseismic information on the 1802 deep Carpathian earthquake from original sources and assess its magnitude based on this data. Assessment of magnitude using a macroseismic field equation specially developed for deep Carpathian earthquakes is characterized by a larger error than that calculated using the equation for crustal earthquakes. However, the specially developed equation is better balanced for entire epicentral distances in the near and far zones, in the sense that the magnitude and its error are practically the same, being calculated separately for the near and far zones. Application of the macroseismic field equation to crustal earthquakes leads to significant differences in these assessments.