HR: 1340h
AN: S43B-1319    [Abstracts]
TI: Hipocentral Inversion Using Spatial Proximity Constraint
AU: Santana, F L
EM: flaviolemos@ufrnet.br
AU: Medeiros, W E
EM: walter@dfte.ufrn.br
AU: * do Nascimento, A F
EM: aderson@dfte.ufrn.br
AB: We developed a hypocentral inversion methodology which incorporates the spatial proximity constraint among hypocentres. This constraint is suitable to approach this inverse problem because it is expected that these hypocentres define the fault surface. The usage of these constraints stabilises the inverse problem by introducing bias with geological meaning. As consequence the location of the events is improved, as we demonstrate with synthetic and real data. The inverse problem was formulated through an optimisation algorithm which does not require derivatives, allowing the use of robust data fitting as well as the spatial proximity between hypocentres.
UR: http://www.dfte.ufrn.br
DE: 7200 SEISMOLOGY
DE: 7205 Continental crust (1219)
DE: 7230 Seismicity and tectonics (1207, 1217, 1240, 1242)
DE: 7290 Computational seismology
DE: 7299 General or miscellaneous
SC: Seismology [S]
MN: 2007 Fall Meeting