Open AccessBUILDING A TOMOGRAPHIC VELOCITY MODEL FOR SAMOYLOV ISLAND AREA (LENA DELTA) FROM LOCAL SEISMOLOGICAL DATA FOR THE PERIOD OF 2019–2021
Author(s) -
П. А. Дергач,
L. Yu. Eponeshnikova,
S. N. Ponasenko,
Andrei Kartoziia,
Wolfram Geissler,
Anton A. Duchkov,
Sergey Shibaev,
G. Y. Zobnin
Publication year - 2022
Publication title -
geodinamika i tektonofizika
Language(s) - English
Resource type - Journals
ISSN - 2078-502X
DOI - 10.5800/gt-2022-13-2s-0627
Subject(s) - hypocenter , geology , seismology , delta , inversion (geology) , period (music) , seismic tomography , river delta , tectonics , geodesy , geophysics , induced seismicity , mantle (geology) , physics , aerospace engineering , acoustics , engineering
In our paper we present the results of seismotomographic inversion for the local seismological monitoring data obtained in the area of the Samoylov Island (Lena River delta) in 2019–2021. Tomographic velocity model was used for refining hypocenter locations of local earthquakes and for geological interpretation. The results are shown as maps of anomalies of seismic waves and Vp /Vs ratios for the 5 and 10 km depths. The velocity anomalies structure made it possible to interpret low Vp /Vs ratio as rocks related to the Siberian platform, and to compare between the boundary of the low Vp /Vs area and the trace of the known geological fault running along the Olenekskaya Channel.