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标题：Earthquake source parameters at the sumatran fault zone: Identification of the activated fault plane
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作者：Madlazim Kasmolan ; Bagus Santosa ; Jonathan Lees 等
期刊名称：Open Geosciences
电子版ISSN：2391-5447
出版年度：2010
卷号：2
期号：4
页码：455-474
DOI：10.2478/v10085-010-0016-5
语种：English
出版社：Walter de Gruyter GmbH & Co. KG
摘要：Abstract Fifteen earthquakes (Mw 4.1–6.4) occurring at ten major segments of the Sumatran Fault Zone (SFZ) were analyzed to identify their respective fault planes. The events were relocated in order to assess hypocenter uncertainty. Earthquake source parameters were determined from three-component local waveforms recorded by IRIS-DMC and GEOFON broadband lA networks. Epicentral distances of all stations were less than 10°. Moment tensor solutions of the events were calculated, along with simultaneous determination of centroid position. Joint analysis of hypocenter position, centroid position, and nodal planes produced clear outlines of the Sumatran fault planes. The preferable seismotectonic interpretation is that the events activated the SFZ at a depth of approximately 14–210 km, corresponding to the interplate Sumatran fault boundary. The identification of this seismic fault zone is significant to the investigation of seismic hazards in the region.
其他关键词：KeywordsenSumatran Fault Zonethree-component local waveform inversionearthquake source parametersfault plane