SEISMIC ACTIVATIONS IN XV–XXI CENTURIES IN ITALY FROM

HISTORICAL DATA

L.I. Ioganson

Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia

Abstract The article deals with an attempt to trace the seismic regime (temporal recurrence and grouping of strong earthquakes) in the Central and Southern Apennines during the historical period, beginning from the XIII century. The seismic events on 2009–2017 in Italy are considering in the accentuated context of the space-temporal regularities of its strong seismicity. The analyzed data on historical and modern seismic catalogs allow identifying the 8 seismic activations within the Central and Southern Apennines since the XV century. Among them both the general activations, covering the Central and South-Apennines and occurred within only the Central or predominantly Southern Apennines are outlined. The identified activations included from 3 to 7 strong earthquakes and continued from 3 to 20 (?) years. The last activation of 1997–2017 is characterized by seismic event concentration (in the absence of extreme values of magnitudes and intensity) only in the Central Apennines as well as a great length in time. The role of historical sources (in this case, the newspaper "St. Petersburg Vedomosti") in restoring a more complete past seismicity even for Italy with its rich tradition on historical studies in seismology is emphasized.

Key words: earthquake, Central and Southern Apennines, seismogenic damage, seismic regime, seismic activation, seismic catalogue, historical source, newspaper "St. Petersburg Vedomosti”

About the author

IOGANSON Lidia Ivanovna — Leading Researcher, Schmidt Institute of Physics of the Earth of the Russian Academy of Science. 123242, Moscow, ul. Bolshaya Gruzinskaya 10, stroenie 1.

E-mail: iogan@ifz.ru

Cite this article as: Ioganson L.I. Seismic activations in XV–XXI centuries in Italy from historical data, Voprosy Inzhenernoi Seismologii (Problems of Engineering Seismology), 2018, Vol. 45, No. 2, pp. 47–60

[in Russian]. DOI: 10.21455/VIS2018.2-4

English translation of the article will be published in Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online), https://link.springer.com/journal/11990), 2019, Volume 55, Issue 2.