Earthquake source parameters at the sumatran fault zone: Identification of the activated fault plane

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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.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Earthquake source parameters at the sumatran fault zone: Identification of the activated fault plane ; volume:2 ; number:4 ; year:2010 ; pages:455-474 ; extent:20
Open Geosciences ; 2, Heft 4 (2010), 455-474 (gesamt 20)

Creator: Kasmolan, Madlazim
Santosa, Bagus
Lees, Jonathan
Utama, Widya

DOI: 10.2478/v10085-010-0016-5

URN: urn:nbn:de:101:1-2501051758455.937456850140

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 15.08.2025, 7:35 AM CEST

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Kasmolan, Madlazim
Santosa, Bagus
Lees, Jonathan
Utama, Widya

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Earthquake source parameters at the sumatran fault zone: Identification of the activated fault plane

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Other Objects (12)

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