Earthquake Size and Varieties Determined by Moment Tensor Inversions
نویسندگان
چکیده
منابع مشابه
Adjoint centroid-moment tensor inversions
S U M M A R Y We determine centroid-moment tensor (CMT) solutions by minimizing waveform differences between observed and simulated seismograms based on an adjoint method. Synthetic seismograms and Fréchet derivatives are calculated based on a spectral-element method. The non-linear adjoint CMT inversion algorithm requires three simulations for each iteration: one ‘forward’ simulation to obtain...
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We have developed and implemented an automated moment tensor inversion procedure to determine source parameters for southern California earthquakes. The method is based upon spectral-element simulations of regional seismic wave propagation in an integrated 3D southern California velocity model. Sensitivity to source parameters is determined by numerically calculating the Fréchet derivatives req...
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Hsin-Hua Huang,1,2,3 Naofumi Aso2,4 and Victor C. Tsai2 1Institute of Earth Science, Academia Sinica, Taipei 115, Taiwan. E-mail: [email protected] 2Seismological Laboratory, California Institute of Technology, Pasadena, CA 91125, USA 3Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112, USA 4Department of Earth and Planetary Science, The University of T...
متن کاملRough ideals based on ideal determined varieties
The paper is devoted to concern a relationship between rough set theory and universal algebra. Notions of lower and upper rough approximations on an algebraic structure induced by an ideal are introduced and some of their properties are studied. Also, notions of rough subalgebras and rough ideals with respect to an ideal of an algebraic structure, which is an extended notion of subalgebras and ...
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ژورنال
عنوان ژورنال: Zisin (Journal of the Seismological Society of Japan. 2nd ser.)
سال: 1991
ISSN: 0037-1114,1883-9029,2186-599X
DOI: 10.4294/zisin1948.44.supplement_265