A rapid algorithm for estimating fault plane solution using polarity-amplitude data: application of a non-linear programming approach

Details A rapid algorithm for estimating fault plane solution using polarity-amplitude data: application of a non-linear programming approach A rapid algorithm for estimating fault plane solution using polarity-amplitude data: application of a non-linear programming approach

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pepi...73..239r&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 73, Issue 3-4, p. 239-254.

Physics

1

Scientific paper

We propose an efficient and rapid algorithm for estimating fault plane solution. This algorithm, based on a constrained non-linear programming approach, allows one to estimate the unknown focal mechanism using P-wave onset polarity data and/or a rough description of some P-wave onset amplitude. The performance capability of the algorithm is tested using an event that was detected with an unfavourable station array distribution. Combining the P-wave onset polarity and absolute amplitude data, we show that this non-linear approach may substantially improve the estimated focal mechanism.

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