Text : Rupture Complexity of the Mw 8 . 3 Sea of Okhotsk Earthquake : Rapid Triggering of Complementary Earthquakes ?
نویسندگان
چکیده
1, Path calibration using the aftershock The calibration is obtained by convolving the mainshock data with the 1D synthetic of the aftershock and then deconvolving with the data of the aftershock. We have applied a 1Hz low-pass filter to the calibrated data because the effect of 3D slab structure in the source region cannot be ignored at higher frequency (>1Hz) (Fig.S1). The mechanism of the aftershock is 29°/68°/-97°/6.7 (strike/dip/rake/Mw) which is obtained by teleseismic P-wave inversion at longer period (>5s), and we assume the source function for the aftershock can be adequately represented as a 1 second trapezoid (Fig. S1). We assume that the observation (O) at a certain station can be represented as: O m (t) = S m (t) * G path (t) and O a (t) = S a (t) * G path (t) where subscript " m " denotes the mainshock, " a " denotes the aftershock and " * " means convolution. G path (t) is the path specific Green's function representing the 3D earth structure. S a (t) is the source function of the aftershock (assumed to be a simple trapezoid) and S m (t) is the
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Rupture complexity of the Mw 8.3 sea of okhotsk earthquake: Rapid triggering of complementary earthquakes?
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