KOPRI Repository

Numerical Study on the Characteristics of Abyssal T-wave Envelopes Controlled by Earthquake Source Parameters

Cited 0 time in wos
Cited 0 time in scopus

Full metadata record

DC Field Value Language
dc.contributor.authorYun, Sukyoung-
dc.contributor.authorLee, Won Sang-
dc.contributor.authorDziak, Robert P.-
dc.contributor.authorMatsumoto, Haruyoshi-
dc.date.accessioned2022-07-07T01:23:01Z-
dc.date.available2022-07-07T01:23:01Z-
dc.date.issued2022-07-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/13568-
dc.description.abstractHydroacoustics has been successfully applied to detect and locate small to intermediate submarine tectonic activities infrequently recorded in land-based seismic arrays. However, to extend the utilization of T-waves to extract other important earthquake source parameters, such as source strength, the roles of earthquake focal mechanisms and source depths in T-wave envelopes must be thoroughly understood. We performed 3-D numerical modeling considering anisotropic source radiation and realistic scattering in the oceanic crust for two focal mechanisms (normal and strike-slip faults) and three depths (5, 10, and 15 km) to investigate the effect of source radiation and focal depth on abyssal T-waves. By analyzing the synthetic Twave envelopes, we showed that stronger SV-energy radiation from a normal-fault earthquake event generates higher-intensity T-waves of the same source magnitude. The anisotropic source radiation of a double-couple source causes azimuthal changes in the shapes of T-waves, and deeper earthquakes cause gentle sloped envelopes; however, the slopes also vary with respect to the azimuths of receivers and focal mechanisms. Temporal changes in the slopes of T-wave envelopes of magmatic swarm events near Wordie Volcano, Bransfield Strait, Antarctic Peninsula, imply that the depth dependency can be utilized to determine relative depths for hydrothermal-vent events or sequenced earthquakes.en_US
dc.languageEnglishen_US
dc.language.isoenen_US
dc.subjectGeochemistry & Geophysicsen_US
dc.subject.classification기타(극지연구소 남극 브랜스필드 수중음향 관측망 자료 활용 연구)en_US
dc.titleNumerical Study on the Characteristics of Abyssal T-wave Envelopes Controlled by Earthquake Source Parametersen_US
dc.title.alternative수치모델을 이용한 지진원 매개변수가 심해저 T파 포락선 특성에 미치는 영향 연구en_US
dc.typeArticleen_US
dc.identifier.bibliographicCitationYun, Sukyoung, et al. 2022. "Numerical Study on the Characteristics of Abyssal T-wave Envelopes Controlled by Earthquake Source Parameters". <em>SEISMOLOGICAL RESEARCH LETTERS</em>, 93(4): 2189-2200.-
dc.citation.titleSEISMOLOGICAL RESEARCH LETTERSen_US
dc.citation.volume93en_US
dc.citation.number4en_US
dc.identifier.doi10.1785/0220210264-
dc.citation.startPage2189en_US
dc.citation.endPage2200en_US
dc.description.articleClassificationSCIE-
dc.description.jcrRateJCR 2020:27.273en_US
dc.subject.keywordSEISMICITYen_US
dc.subject.keywordSCATTERINGen_US
dc.subject.keywordVOLCANOen_US
dc.subject.keywordPHASEen_US
dc.subject.keywordMAGNITUDESen_US
dc.subject.keywordGENERATIONen_US
dc.subject.keywordEXCITATIONen_US
dc.subject.keywordSPECTRAen_US
dc.subject.keywordEVENTen_US
dc.subject.keywordRIDGEen_US
dc.identifier.localId2022-0065-
dc.identifier.wosid000818025100007-
Appears in Collections  
2021-2022, Land-Ice/Ocean Network Exploration with Semiautonomous Systems: Thwaites Glacier (LIONESS/TG) - Toward understanding the fate of the Thwaites Glacier by abrupt collapse and its impact on global sea level changes - (21-22) / Lee, Won Sang (PM21020)
Files in This Item

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse