2D magnetotelluric image of the Dobrá Voda seismoactive area

0565717 - GFÚ 2023 RIV PL eng J - Journal Article
Ondrášová, L. - Vozár, J. - Hók, J. - Cipciar, A. - Godová, D. - Klanica, Radek
2D magnetotelluric image of the Dobrá Voda seismoactive area.
Contributions to geophysics and geodesy. Roč. 52, č. 4 (2022), s. 579-596. ISSN 1338-0540
Institutional support: RVO:67985530
Keywords : geoelectrical model * magnetotellurics * seismoactive area * Dobrá Voda
OECD category: Volcanology
Impact factor: 0.7, year: 2022
Method of publishing: Open access
https://journal.geo.sav.sk/cgg/article/view/435

Dobrá Voda village is located in the Malé Karpaty Mts. (Brezovské Karpaty) and is well known for its increased seismic activity. For a better understanding of the processes preceding earthquakes, this area has been studied using several methods. One of them is magnetotellurics. Magnetotellurics provides an image of the distribution of electrical conductivity within the Earth and helps to determine individual tectonic structures, specifically faults. The shallow conductive structures are associated with Neogene sediments of the Danube Basin, sedimentary fill of the Dobrá Voda Depression, and partial nappes of Hronicum, probably saturated with water. Less conductive structures are the Fatricum sediments and the lowest conductivity values belong to crystalline basement of the Tatricum tectonic unit. Whole structure of the Dobrá Voda seismoactive area along our magnetotelluric profile is disrupted by NE–SW oriented normal faults. Based on the location of earthquake hypocentres, we can identify main seismoactive areas as crystalline complexes of Tatricum.
Permanent Link: https://hdl.handle.net/11104/0337233