Display and assessment of earthquake focal mechanisms by vector representation

1993 ◽  
Vol 83 (6) ◽  
pp. 1871-1880
Author(s):  
Stuart A. Sipkin
Keyword(s):  
Seismic Moment ◽  
Three Dimensional ◽  
Focal Mechanisms ◽  
Second Order ◽  
Vector Representation ◽  
Moment Tensors ◽  
Earthquake Focal Mechanisms ◽  
Mid Atlantic Ridge ◽  
Similarities And Differences

Abstract The isomorphism between symmetric, three-dimensional, second-order tensors and six-dimensional vectors is exploited to display suites of seismic moment tensors and to asses their similarities and differences, both graphically and quantitatively. Using the southern Mid-Atlantic Ridge as an example, I show that this method successfully differentiates between different mechanism types and orientations. In addition, the dispersion within a group of mechanisms is successfully quantified.

Present-day tectonic stress regime in Egypt and surrounding area based on inversion of earthquake focal mechanisms

2013 ◽  
Vol 81 ◽  
pp. 1-15 ◽  
Author(s):  
H.M. Hussein ◽  
K.M. Abou Elenean ◽  
I.A. Marzouk ◽  
I.M. Korrat ◽  
I.F. Abu El-Nader ◽  
...  
Keyword(s):  
Tectonic Stress ◽  
Focal Mechanisms ◽  
Surrounding Area ◽  
Stress Regime ◽  
Earthquake Focal Mechanisms

Earthquake focal mechanisms, deformation state, and seismotectonics of the Pamir-Tien Shan region, Central Asia

1995 ◽  
Vol 100 (B10) ◽  
pp. 20321-20343 ◽  
Author(s):  
Albert A. Lukk ◽  
Sergei L. Yunga ◽  
Vladimir I. Shevchenko ◽  
Michael W. Hamburger
Keyword(s):  
Central Asia ◽  
Focal Mechanisms ◽  
Tien Shan ◽  
Earthquake Focal Mechanisms ◽  
Deformation State

The 2014–2015 complex collapse of the Bárðarbunga caldera, Iceland, revealed by seismic moment tensors

2021 ◽  
pp. 107275
Author(s):  
Félix Rodríguez-Cardozo ◽  
Vala Hjörleifsdóttir ◽  
Kristín Jónsdóttir ◽  
Arturo Iglesias ◽  
Sara Ivonne Franco ◽  
...  
Keyword(s):  
Seismic Moment ◽  
Moment Tensors

THREE-DIMENSIONAL STAGNATION-POINT FLOW OVER A PERMEABLE STRETCHING/SHRINKING SHEET WITH A SECOND ORDER SLIP FLOW

2021 ◽  
Vol 10 (9) ◽  
pp. 3273-3282
Author(s):  
M.E.H. Hafidzuddin ◽  
R. Nazar ◽  
N.M. Arifin ◽  
I. Pop
Keyword(s):  
Differential Equations ◽  
Stagnation Point ◽  
Flow Model ◽  
Nonlinear Partial Differential Equations ◽  
Slip Flow ◽  
Three Dimensional ◽  
Flow Characteristics ◽  
Second Order ◽  
Stagnation Point Flow ◽  
Shrinking Sheet

The problem of steady laminar three-dimensional stagnation-point flow on a permeable stretching/shrinking sheet with second order slip flow model is studied numerically. Similarity transformation has been used to reduce the governing system of nonlinear partial differential equations into the system of ordinary (similarity) differential equations. The transformed equations are then solved numerically using the \texttt{bvp4c} function in MATLAB. Multiple solutions are found for a certain range of the governing parameters. The effects of the governing parameters on the skin friction coefficients and the velocity profiles are presented and discussed. It is found that the second order slip flow model is necessary to predict the flow characteristics accurately.

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