Seismic moment tensor and focal mechanism for earthquake of February 22, 2024 in eastern Slovakia (12:54:15 UTC, 21.75E°E, 49.03°N, depth 9 km, ML3.0)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F25%3A00619350" target="_blank" >RIV/67985891:_____/25:00619350 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.24028/gj.v47i2.322470" target="_blank" >https://doi.org/10.24028/gj.v47i2.322470</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.24028/gj.v47i2.322470" target="_blank" >10.24028/gj.v47i2.322470</a>

Result language

angličtina

Original language name

Seismic moment tensor and focal mechanism for earthquake of February 22, 2024 in eastern Slovakia (12:54:15 UTC, 21.75E°E, 49.03°N, depth 9 km, ML3.0)

Original language description

The accuracy of the focal mechanism solution can depend very significantly on the number of stations used, especially in the case of weak earthquakes and sparse networks. We describe the procedure for retrieving the seismic moment tensor for the earthquake of February 22, 2024, which happened in Eastern Slovakia, using a limited number of seismic stations. We use records from only two stations of the Slovakian network: sk19 (49.25 degrees N, 21.93 degrees E) and sk20 (49.21 degrees N, 21.61 degrees E). The moment tensor inversion of high-frequency seismogram data in this study is based on a point source approach using the matrix method for the direct waves. The process involves generating records in displacements using the frequency and wave-number integration technique for an elastic horizontally layered medium. Amethod is presented for moment tensor inversion of only direct P-and S-waves, which is less sensitive to path effects modelling than reflected and converted waves, significantly improving the method's accuracy and reliability. The location and origin time of the event are considered known. Based on forward modelling, a numerical technique is developed for the inversion of observed waveforms for the of moment tensor M(t) components obtained by generalized inversion.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10505 - Geology

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Geofizičeskij žurnal

ISSN

0203-3100

e-ISSN

2524-1052

Volume of the periodical

47

Issue of the periodical within the volume

2

Country of publishing house

UA - UKRAINE

Number of pages

6

Pages from-to

110-115

UT code for WoS article

001469781800015

EID of the result in the Scopus database

2-s2.0-105002991742