Information background of 11th–15th centuries earthquakes located by the current catalogues in Vrancea (Romania) |
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| Authors: | Ruben Tatevossian Paola Albini |
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| Institution: | (1) Institute of Physics of the Earth, Russian Academy of Sciences, ul. B. Gruzinskaya 10, 123995 Moscow, Russia;(2) Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Milano-Pavia, Via E. Bassini 15, 20133 Milan, Italy |
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| Abstract: | Earthquake catalogues for Romania supply for 11th–15th century earthquakes located in the region of Vrancea records that consist
of a complete set of parameters, including magnitude and depth. Scope of this paper is to verify the reliability and consistency
of these parameters with the informative background as explicitly referenced by the catalogues. After retrieving the original
sources they mention, the set of data appeared to be related almost exclusively to the Russian plain and too poor to be at
the very origin of the parameter assessment. Data for 19th–20th century earthquakes, such as instrumental locations and CMT
solutions, added to the understanding of the macroseismic response of the Russian plain to Vrancea earthquakes. On the one
hand, the investigation and analysis of historical earthquake records for the fourteen events listed by the catalogues in
the 11th–15th centuries has shown that for three earthquakes (1022, 1038, 1258) no primary sources could be traced, and three
more earthquakes (1091, 1170 and 1328) are attested only by scarcely reliable records and had to be classified as doubtful,
and one (1473) is simply a duplication of the 1471 event. On the other hand, the availability of data on recent earthquakes
that may be compared to historical ones in terms of macroseismic effects allowed the authors to agree with the previous catalogue
compilers’ solution with regard to both magnitude and depth of the past earthquakes for which do exist reliable primary historical
records. |
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