CLVD

AcronymDefinition
CLVDCompensated Linear Vector Dipole (seismology)
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The model of the CLVD is not undisputable, since a Poisson's ratio of 0.
Event Inversion / ISO CLVD DC Strike1 Dip1 Error [%] [%] [%] [dgr] [dgr] 048290 Non-Lin 2 -38 60 215 73 MAP64 +/- 10 +/- 29 +/- 28 +/- 10 +/- 7 MAP12 +/- 4 +/- 11 +/- 11 +/- 4 +/- 2 Gauss +/- 5 +/- 15 +/- 16 +/- 5 +/- 3 Lin -10 -41 49 204 74 MAP64 +/- 15 +/- 34 +/- 36 +/- 19 +/- 16 MAP12 +/- 6 +/- 11 +/- 10 +/- 8 +/- 6 Gauss +/- 8 +/- 16 +/- 16 +/- 3 +/- 7 Chol.
The combination of isotropic and CLVD components describes a tensile source.
denotes deviatoric part of MT; absolute values of ISO, CLVD and DC range in interval <0 ; 1>.
For ISO, CLVD and DC calculated errors are explicit values any time, however there are sometimes problems with error of DC orientation--due to geometrical effects, sometime the error interval cannot be exactly determined, especially when some values of the two possible solutions are close one to each other or the angles switch over their definition period (e.
8) The ISO and CLVD components range in interval <-100%; 100%>, DC in interval <0%; 100%>--see comments to formula (6).
Mw ISO CLVD DC Strike [%] [%] [%] 1 [dgr] 048290 29 1.
denotes deviatoric part of M; absolute values of ISO, CLVD and DC range in interval <0,1>.
absolute value of max]] = 1, supposing here that ISO > 0 and CLVD > 0, we can put (4) and (5) into (2b) and express deviatoric parameter F as
Generally, values of ISO and CLVD can be positive as well as negative (see above).
Remember again, that the formulas were derived under the assumption of ISO > 0 and CLVD > 0.
We present formulas for evaluation of full seismic tensor moment as a function of ISO, CLVD, DC, strike, dip, rake in two forms: i, in form of multiplication of two matrixes (7) and ii, in individual expression for 6 independent MT elements (10).