METADATA
IN ENGLISH
About the journal
SEISMICHESKIE PRIBORY, ISSN: 0131-6230, eISSN:
2312-6965, DOI: 10.21455/si,
http://elibrary.ru/title_about.asp?id=25597)
English Translation: Seismic Instruments, ISSN:
0747-9239 (Print) 1934-7871 (Online),
https://link.springer.com/journal/11990
2014–2016
seismic events around the Karelian Isthmus
and their nature
B.А. Assinovskaya1,
I.P. Gabsatarova2, N.M. Panas1, M. Uski3
1 Federal Research Center of the
Unified Geophysical Survey of RAS, St. Petersburg, Russia
2 Federal Research Center of the Unified Geophysical
Survey of RAS, Obninsk, Russia
3 Institute of Seismology, Department of Geosciences and
Geography of University of Helsinki, Finland
Corresponding
author: I.P. Gabsatarova, e-mail: ira@gsras.ru
Abstract. 32 compactly localized
seismic events with a unique wave pattern with ML in the range of –0.6…+2.1 were registered by the local
St. Petersburg seismic network, for the first time in the aseismic Leningrad
region. The nature of the events have been studied, the difference between the
records of these events and the recordings of the explosions at the Vyborg
station is shown by means of spectrograms and the cluster analysis. Focal
parameters and a focal mechanism of thrust-strike movement along a possible
fault plane of the north-western direction were determined which proves the
tectonic origin of the events. Synthetic seismograms of the strongest event on
December 18, 2016 at 00h 20 min have been constructed, the shape of which
corresponds to the position of the source at a depth of 2 km. A map of
earthquake epicenters was compiled, and NS directed seismogenic zone of 4 km in
length was identified as a fault that limits the Vyborg rapakivi intrusion from
the east, and possibly a new rupture that has occurred in the region of the
long and intensely functioning Erkilja quarry. The regional earthquakes that
took place in the historical and instrumental periods of observations were
described. A database of explosions from known quarries has been created. The
velocity model was refined.
Keywords: explosion, quarry,
tectonic earthquake, earthquake catalogue, seismic stations, Vyborg rapakivi
intrusion.
About the authors
ASSINOVSKAYA Bela
Aleksandrovna – Candidate of Physical and
Mathematical Sciences, acting leading research officer, Federal Research Center
“United Geophysical Service of the Russian Academy of Sciences”. 197140, St. Petersburg, Pulkovskoe highway, 65, building 12.
Phone: +7(812) 363-74-19. E-mail: assinovskaya@plkv.gsras.ru
GABSATAROVA Irina Petrovna – Candidate of Physical and Mathematical
Sciences, Head of Laboratory, Federal Research Center “United Geophysical
Service of the Russian Academy of Sciences”. 249035, Obninsk,
prosp. Lenina, 189. Phone: +7(495) 912-68-72.
E-mail: ira@gsras.ru
PANAS Natalia Mikhailovna – Engineer, Federal Research Center
“United Geophysical Service of the Russian Academy of Sciences”. 197140, St. Petersburg, Pulkovskoe shosse, 65, building 12.
Phone: +7(812) 363-74-19. E-mail: natagold@inbox.ru
JUSKI Marya – PhD, seismologist, Institute of
Seismology, Department of Earth Sciences and Geography, University of Helsinki.
PL 68 (Gustaf Hällströmin katu 2b) 00014 University of
Helsinki Finland. Phone: +358 29-415-16-09. E-mail:
Marja.Uski@helsinki.fi
Cite this article as: Assinovskaya B.А., Gabsatarova I.P., Panas N.M., Uski M. 2014–2016 seismic
events around the Karelian Isthmus and their nature. Seismicheskie Pribory, 2018, Vol. 54, no 1, pp. 40-61. DOI: 10.21455/si2018.1-4 (in Russ.).
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 1.