Determination of the earthquake source parameters at Tushka area and its surroundings, Aswan, South Egypt

2010 ◽  
Vol 58 (3) ◽  
pp. 553-560
Author(s):  
Haggag H. Mohamed ◽  
Gaber H. Hassib
Keyword(s):  
Source Parameters ◽  
Earthquake Source ◽  
Earthquake Source Parameters

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

2010 ◽  
Vol 2 (4) ◽  
Author(s):  
Madlazim Kasmolan ◽  
Bagus Santosa ◽  
Jonathan Lees ◽  
Widya Utama
Keyword(s):  
Fault Zone ◽  
Moment Tensor ◽  
Source Parameters ◽  
Earthquake Source ◽  
Joint Analysis ◽  
Seismic Fault ◽  
Earthquake Source Parameters ◽  
Sumatran Fault ◽  
Centroid Position

AbstractFifteen 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.

Considering uncertainties in the determination of earthquake source parameters from seismic spectra

2016 ◽  
Vol 207 (2) ◽  
pp. 691-701 ◽  
Author(s):  
Alexander Garcia-Aristizabal ◽  
Marco Caciagli ◽  
Jacopo Selva
Keyword(s):  
Source Parameters ◽  
Earthquake Source ◽  
Earthquake Source Parameters

scholarly journals Determining the focal mechanisms of the events in the Carpathian region of Ukraine

2014 ◽  
Vol 3 (2) ◽  
pp. 229-239 ◽  
Author(s):  
A. Pavlova ◽  
O. Hrytsai ◽  
D. Malytskyy
Keyword(s):  
Seismic Waves ◽  
Source Parameters ◽  
Focal Mechanisms ◽  
Earthquake Source ◽  
Carpathian Region ◽  
Earthquake Source Parameters ◽  
The Matrix ◽  
Trial And Error Method ◽  
Error Method

Abstract. The modification of the matrix method for constructing the displacement field on the free surface of an anisotropic layered medium is presented. The source of seismic waves is modelled by a randomly oriented force and seismic tensor. A trial and error method is presented for solving the inverse problem of determining parameters of the earthquake source. A number of analytical and numerical approaches to determining the earthquake source parameters, based on the direct problem solutions, are proposed. The focal mechanisms for the events in the Carpathian region of Ukraine are determined by the graphical method. The theory of determination of the angles of orientation of the fault plane and the earthquake's focal mechanism are presented. The focal mechanisms obtained by two different methods are compared.

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