About: Disputable non-double-couple mechanisms of several strong earthquakes: second-degree moment approach

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About: Disputable non-double-couple mechanisms of several strong earthquakes: second-degree moment approach Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The earthquake source mechanism (description of the geometry of the source and its strength in terms of forces equivalent to rupturing of the rock mass) is routinely modeled as a moment tensor (MT) describing the earthquake focus as a point. However, sometimes this approximation is not satisfied, and seismic radiation keeps the directivity due to the finite extent of the source. Inversion into the MT then may yield a biased mechanism. Synthetic study in the Adamová and Šílený (2010) demonstrated the appearance of spurious non-double-couple components in the mechanism even for a pure double-couple (DC) source. Their method was designed to reduce the spurious source components by using the second-degree moments to evaluate their contribution into the records and subtract it from the data. Here we applied the procedure to five moderate to large regional events with large nonshear components. They are mostly located on large tectonic faults where predominantly pure shear slip is expected. We studied one event on the prominent North Anatolian fault, three events in the Pacific area, and one event in Bolivia. The earthquake source mechanism (description of the geometry of the source and its strength in terms of forces equivalent to rupturing of the rock mass) is routinely modeled as a moment tensor (MT) describing the earthquake focus as a point. However, sometimes this approximation is not satisfied, and seismic radiation keeps the directivity due to the finite extent of the source. Inversion into the MT then may yield a biased mechanism. Synthetic study in the Adamová and Šílený (2010) demonstrated the appearance of spurious non-double-couple components in the mechanism even for a pure double-couple (DC) source. Their method was designed to reduce the spurious source components by using the second-degree moments to evaluate their contribution into the records and subtract it from the data. Here we applied the procedure to five moderate to large regional events with large nonshear components. They are mostly located on large tectonic faults where predominantly pure shear slip is expected. We studied one event on the prominent North Anatolian fault, three events in the Pacific area, and one event in Bolivia. (en)
Title	Disputable non-double-couple mechanisms of several strong earthquakes: second-degree moment approach Disputable non-double-couple mechanisms of several strong earthquakes: second-degree moment approach (en)
skos:prefLabel	Disputable non-double-couple mechanisms of several strong earthquakes: second-degree moment approach Disputable non-double-couple mechanisms of several strong earthquakes: second-degree moment approach (en)
skos:notation	RIV/67985530:_____/13:00396790!RIV14-GA0-67985530
http://linked.open...avai/predkladatel	Geofyzikální ústav AV ČR, v. v. i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP210/10/0296)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Adamová, Petra Šílený, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Geofyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	69918
http://linked.open...ai/riv/idVysledku	RIV/67985530:_____/13:00396790
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Izmit Turkey earthquake; 1995 Kobe earthquake; rupture processes (en)
http://linked.open.../riv/klicoveSlovo	1995 Kobe earthquake Izmit Turkey earthquake rupture processes
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[CDA371E700BE]
http://linked.open...i/riv/nazevZdroje	Bulletin of the Seismological Society of America
http://linked.open...in/vavai/riv/obor	DC
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Earthquake source modelling by second degree moment tensors
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	103
http://linked.open...iv/tvurceVysledku	Šílený, Jan Adamová, Petra
http://linked.open...ain/vavai/riv/wos	000324986700021
issn	0037-1106
number of pages	14 (xsd:int)
http://bibframe.org/vocab/doi	10.1785/0120130014

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