Seismic waves velocities inferred from the surface waves dispersion in the Malé Karpaty Mountains, Slovakia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F19%3A00517296" target="_blank" >RIV/67985891:_____/19:00517296 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.irsm.cas.cz/materialy/acta_content/2019_doi/Lukesova_AGG_2019_0038.pdf" target="_blank" >https://www.irsm.cas.cz/materialy/acta_content/2019_doi/Lukesova_AGG_2019_0038.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.13168/AGG.2019.0038" target="_blank" >10.13168/AGG.2019.0038</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Seismic waves velocities inferred from the surface waves dispersion in the Malé Karpaty Mountains, Slovakia

Popis výsledku v původním jazyce

The study area of Western Carpathians belongs to one of the most seismically active regions in Slovakia, where the available velocity models are not precise enough for accurate location andndetermination of focal mechanism. To improve the uppermost part of the currently used models, seismic surface wave data from two blasts in the quarry Rohožník, recorded at the MKnet localnseismic network, were analyzed. Group velocity dispersion curves of Rayleigh and Love waves were determined by the frequency-time analysis. A mean group velocity dispersion curve fornLove and Rayleigh waves for the central part of the MKnet network was settled and consequently joint inversion, for the period range 0.9 – 2.7 s, was performed to obtain a 1-Dnvelocity model using the isometric method. The 11-layered model extends to depth of 2.5 km and indicate increase of the velocities from the surface down to the depths of 0.9 km. Then,nvelocities slightly decrease. The minimum of the low-velocity zone is at the depth of 1.8 km s.after which the velocities moderately increase to the velocity of the halfspace with vP = 5.35 km/snand vS = 2.96 km/s.

Název v anglickém jazyce

Seismic waves velocities inferred from the surface waves dispersion in the Malé Karpaty Mountains, Slovakia

Popis výsledku anglicky

The study area of Western Carpathians belongs to one of the most seismically active regions in Slovakia, where the available velocity models are not precise enough for accurate location andndetermination of focal mechanism. To improve the uppermost part of the currently used models, seismic surface wave data from two blasts in the quarry Rohožník, recorded at the MKnet localnseismic network, were analyzed. Group velocity dispersion curves of Rayleigh and Love waves were determined by the frequency-time analysis. A mean group velocity dispersion curve fornLove and Rayleigh waves for the central part of the MKnet network was settled and consequently joint inversion, for the period range 0.9 – 2.7 s, was performed to obtain a 1-Dnvelocity model using the isometric method. The 11-layered model extends to depth of 2.5 km and indicate increase of the velocities from the surface down to the depths of 0.9 km. Then,nvelocities slightly decrease. The minimum of the low-velocity zone is at the depth of 1.8 km s.after which the velocities moderately increase to the velocity of the halfspace with vP = 5.35 km/snand vS = 2.96 km/s.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Acta geodynamica et geomaterialia

ISSN

1214-9705

e-ISSN

—

Svazek periodika

16

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

14

Strana od-do

451-464

Kód UT WoS článku

000500942800011

EID výsledku v databázi Scopus

2-s2.0-85077891753