The M-w 7.1 Van, Eastern Turkey, earthquake 2011: two-point source modelling by iterative deconvolution and non-negative least squares

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10283579" target="_blank" >RIV/00216208:11320/14:10283579 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1093/gji/ggt386" target="_blank" >http://dx.doi.org/10.1093/gji/ggt386</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/gji/ggt386" target="_blank" >10.1093/gji/ggt386</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The M-w 7.1 Van, Eastern Turkey, earthquake 2011: two-point source modelling by iterative deconvolution and non-negative least squares

Popis výsledku v původním jazyce

The source complexity of the M-w 7.1 (USGS) Van, Eastern Turkey, earthquake of 2011 October 23 is studied using full waveform inversions of seismic records at near-regional distances (120-220 km) and relatively low frequencies (0.05-0.15 Hz). The study relies on iterative deconvolution and on a new method in which pairs of point sources on the fault plane are systematically grid searched, and the moment-rate time functions of the two-point sources are simultaneously calculated by non-negative least-squares inversion. It is demonstrated on synthetic and real data that the wavefield in these ranges is sensitive enough to distinguish two main subevents of the Van earthquake, separated from each other by similar to 10-15 km and similar to 4 s. The double-event character of the Van earthquake is indicated even by a simplified single-point source model, optimally when the trial-point source is near the earthquake centroid. The simple indicators of source complexity developed in this paper ar

Název v anglickém jazyce

The M-w 7.1 Van, Eastern Turkey, earthquake 2011: two-point source modelling by iterative deconvolution and non-negative least squares

Popis výsledku anglicky

The source complexity of the M-w 7.1 (USGS) Van, Eastern Turkey, earthquake of 2011 October 23 is studied using full waveform inversions of seismic records at near-regional distances (120-220 km) and relatively low frequencies (0.05-0.15 Hz). The study relies on iterative deconvolution and on a new method in which pairs of point sources on the fault plane are systematically grid searched, and the moment-rate time functions of the two-point sources are simultaneously calculated by non-negative least-squares inversion. It is demonstrated on synthetic and real data that the wavefield in these ranges is sensitive enough to distinguish two main subevents of the Van earthquake, separated from each other by similar to 10-15 km and similar to 4 s. The double-event character of the Van earthquake is indicated even by a simplified single-point source model, optimally when the trial-point source is near the earthquake centroid. The simple indicators of source complexity developed in this paper ar

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DC - Seismologie, vulkanologie a struktura Země

OECD FORD obor

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Projekt

<a href="/cs/project/GAP210%2F11%2F0854" target="_blank" >GAP210/11/0854: Prohloubení fyzikálního pohledu na zemětřesení ve Středomoří</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Geophysical Journal International

ISSN

0956-540X

e-ISSN

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Svazek periodika

196

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

522-538

Kód UT WoS článku

000330535900037

EID výsledku v databázi Scopus

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