Global and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakes

The systematic behavior of earthquake rupture as a function of earthquake magnitude and/or tectonic setting is a key in our understanding of the physical mechanisms involved during earthquake rupture. Geophysical evidence suggests that although deep earthquakes—including intermediate?depth and deep—...

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Tipo de recurso:
Fecha de publicación:
2014
Institución:
Universidad del Rosario
Repositorio:
Repositorio EdocUR - U. Rosario
Idioma:
eng
OAI Identifier:
oai:repository.urosario.edu.co:10336/25872
Acceso en línea:
https://doi.org/10.1002/2014GL061916
https://repository.urosario.edu.co/handle/10336/25872
Palabra clave:
Deep?focus earthquakes
Rupture duration
Earthquake scaling
Intermediate?depth earthquakes
Source time function
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id EDOCUR2_0c8418ac3e3b2f9b337daaa6ae8def95
oai_identifier_str oai:repository.urosario.edu.co:10336/25872
network_acronym_str EDOCUR2
network_name_str Repositorio EdocUR - U. Rosario
repository_id_str
spelling 7868e6fd-70bc-4274-b57f-9fb88c517635-14df96730-20af-4b74-8e6d-19a87a127a12-12020-08-06T16:20:05Z2020-08-06T16:20:05Z2014-11-26The systematic behavior of earthquake rupture as a function of earthquake magnitude and/or tectonic setting is a key in our understanding of the physical mechanisms involved during earthquake rupture. Geophysical evidence suggests that although deep earthquakes—including intermediate?depth and deep—are similar to shallow ones, the mechanism involved during deep earthquakes is different from that of shallow ones. In particular, the magnitude and depth dependence of scaled duration, a measure of earthquake rupture duration, has led to controversy of what controls deep earthquake behavior. Here we estimate scaled source durations for 600 intermediate?depth and deep?focus earthquakes recorded at teleseismic distances and show deviation from self?similar scaling. No depth dependence is observed which we interpret as due to little differences between intermediate?depth and deep?focus earthquake mechanisms. The data show no correlation between durations and plate age or thermal parameters, suggesting that the thermal properties of the plate have little effect on source durations. We nevertheless report differences in average source duration and scaling between subduction zones and along?strike variations of source durations that more closely resemble the geometry of subduction (flat or steep subduction) rather than plate age.application/pdfhttps://doi.org/10.1002/2014GL061916ISSN: 0094-8276ESSN: 1944-8007https://repository.urosario.edu.co/handle/10336/25872engJohn Wiley and Sons8324No. 238315Geophysical Research LettersVol. 41Geophysical Research Letters, ISSN: 0094-8276; ESSN: 1944-8007, Vol.41, No.23 (16 Diciembre, 2014); pp.8315-8324https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2014GL061916Abierto (Texto Completo)http://purl.org/coar/access_right/c_abf2Geophysical Research Lettersinstname:Universidad del Rosarioreponame:Repositorio Institucional EdocURDeep?focus earthquakesRupture durationEarthquake scalingIntermediate?depth earthquakesSource time functionGlobal and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakesVariaciones globales y de largo alcance de duración de la fuente y escala para terremotos de profundidad intermedia y foco profundoarticleArtículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_6501Prieto Gomez, German AndresPoli, Piero10336/25872oai:repository.urosario.edu.co:10336/258722021-06-03 00:50:19.692https://repository.urosario.edu.coRepositorio institucional EdocURedocur@urosario.edu.co
dc.title.spa.fl_str_mv Global and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakes
dc.title.TranslatedTitle.spa.fl_str_mv Variaciones globales y de largo alcance de duración de la fuente y escala para terremotos de profundidad intermedia y foco profundo
title Global and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakes
spellingShingle Global and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakes
Deep?focus earthquakes
Rupture duration
Earthquake scaling
Intermediate?depth earthquakes
Source time function
title_short Global and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakes
title_full Global and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakes
title_fullStr Global and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakes
title_full_unstemmed Global and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakes
title_sort Global and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakes
dc.subject.keyword.spa.fl_str_mv Deep?focus earthquakes
Rupture duration
Earthquake scaling
Intermediate?depth earthquakes
Source time function
topic Deep?focus earthquakes
Rupture duration
Earthquake scaling
Intermediate?depth earthquakes
Source time function
description The systematic behavior of earthquake rupture as a function of earthquake magnitude and/or tectonic setting is a key in our understanding of the physical mechanisms involved during earthquake rupture. Geophysical evidence suggests that although deep earthquakes—including intermediate?depth and deep—are similar to shallow ones, the mechanism involved during deep earthquakes is different from that of shallow ones. In particular, the magnitude and depth dependence of scaled duration, a measure of earthquake rupture duration, has led to controversy of what controls deep earthquake behavior. Here we estimate scaled source durations for 600 intermediate?depth and deep?focus earthquakes recorded at teleseismic distances and show deviation from self?similar scaling. No depth dependence is observed which we interpret as due to little differences between intermediate?depth and deep?focus earthquake mechanisms. The data show no correlation between durations and plate age or thermal parameters, suggesting that the thermal properties of the plate have little effect on source durations. We nevertheless report differences in average source duration and scaling between subduction zones and along?strike variations of source durations that more closely resemble the geometry of subduction (flat or steep subduction) rather than plate age.
publishDate 2014
dc.date.created.spa.fl_str_mv 2014-11-26
dc.date.accessioned.none.fl_str_mv 2020-08-06T16:20:05Z
dc.date.available.none.fl_str_mv 2020-08-06T16:20:05Z
dc.type.eng.fl_str_mv article
dc.type.coarversion.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_6501
dc.type.spa.spa.fl_str_mv Artículo
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1002/2014GL061916
dc.identifier.issn.none.fl_str_mv ISSN: 0094-8276
ESSN: 1944-8007
dc.identifier.uri.none.fl_str_mv https://repository.urosario.edu.co/handle/10336/25872
url https://doi.org/10.1002/2014GL061916
https://repository.urosario.edu.co/handle/10336/25872
identifier_str_mv ISSN: 0094-8276
ESSN: 1944-8007
dc.language.iso.spa.fl_str_mv eng
language eng
dc.relation.citationEndPage.none.fl_str_mv 8324
dc.relation.citationIssue.none.fl_str_mv No. 23
dc.relation.citationStartPage.none.fl_str_mv 8315
dc.relation.citationTitle.none.fl_str_mv Geophysical Research Letters
dc.relation.citationVolume.none.fl_str_mv Vol. 41
dc.relation.ispartof.spa.fl_str_mv Geophysical Research Letters, ISSN: 0094-8276; ESSN: 1944-8007, Vol.41, No.23 (16 Diciembre, 2014); pp.8315-8324
dc.relation.uri.spa.fl_str_mv https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2014GL061916
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.acceso.spa.fl_str_mv Abierto (Texto Completo)
rights_invalid_str_mv Abierto (Texto Completo)
http://purl.org/coar/access_right/c_abf2
dc.format.mimetype.none.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv John Wiley and Sons
dc.source.spa.fl_str_mv Geophysical Research Letters
institution Universidad del Rosario
dc.source.instname.none.fl_str_mv instname:Universidad del Rosario
dc.source.reponame.none.fl_str_mv reponame:Repositorio Institucional EdocUR
repository.name.fl_str_mv Repositorio institucional EdocUR
repository.mail.fl_str_mv edocur@urosario.edu.co
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