Analysis of relation between seismicity and features of potential fields within the Lena-Anabar trough: experience of usage modern GIS-technologies-Reference-Cited by-同舟云学术

Analysis of relation between seismicity and features of potential fields within the Lena-Anabar trough: experience of usage modern GIS-technologies

Published:2024-06-26 Issue:2 Volume: Page:12-24
ISSN:1609-364X
Container-title:Geoinformatika
language:
Short-container-title:Geoinformatika

Author:

Kulyandina Albina S.¹^ORCID,Sokolova Elena Yu.²^ORCID,Filippova Alena I.³^ORCID

Affiliation:

1. M.K. Ammosov North-Eastern Federal University Geological Exploration Faculty; Yakutsk Branch of the Geophysical Survey RAS

2. All-Russian Research Geological Petroleum Institute; Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences

3. Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Waves Propagation of the Russian Academy of Sciences

Abstract

In this paper, we study a relation between seismicity and features of geomagnetic and gravity fields within the Lena-Anabar trough and adjacent areas (northwestern Yakutia) applying the modern GIS INTEGRO software. A review of regional seismicity, registered during the instrumental observation period (1963–2022) from data of permanents seismic station network of the Yakutsk Branch of FRC GS RAS, is presented. The potential fields were analyzed based on maps compiling results of 1 : 200 000 surveys. Technologies of GIS INTEGRO allowed us to trace the main features of the spatial morphology and calculated statistical parameters of the potential fields and to compare them with known tectonic structures and a seismicity distribution within the study region. The results of the performed analysis clearly demonstrate a correlation of anomalous characteristics of gravity and magnetic fields with earthquake epicenter locations. This is a good premise for further geophysical modeling aimed at revealing structural and tectonic features of earthquake sources in northwestern Yakutia.

Publisher

Federal State Budgetary Institution - All-Russian Research Geological Oil Institute

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