Once more about the deep Caucasus earthquakes

 

A.A. Godzikovskaya

 

Geophysical Survey , Russian Academy of Sciences, Obninsk, Russia

 

Abstract. The upper crust location of the sources of the Spitak earthquake 07.12.1988 and its aftershocks is proved. It is demonstrated that seismological network in the region allowed unequivocal focal depth identification based on the kinematic data. Waveforms of all the Spitak earthquakes are typical of the sources in the upper crust. It is noted that mantle earthquakes in Caucasus have been revealed up to now only in the Tersk-Sundja depression.

 

Keywords: deep (mantle) earthquakes, crustal earthquakes, waveform character.

 

 

About the author

 

GODZIKOVSKAYA Anna A. — engineer, Geophysical Survey, Russian Academy of Sciences. 24903, Obninsk, prosp. Lenina 189. Tel.: +7 (905) 750-03-66; +7 (499) 724-32-72.
E-mail: godzanna@mail.ru

 

Cite this article as: Godzikovskaya A.A. Once more about the deep Caucasus earthquakes, Voprosy Inzhenernoi Seismologii (Problems of Engineering Seismology). 2017. Vol. 44, No. 3, pp. 41–56. DOI: 10.21455/VIS2017.3-3 [in Russian].

 

English translation of the article will be published in Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online), https://link.springer.com/journal/11990), 2018, Volume 54, Issue 3.