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首页> 外文期刊>Earth, planets and space: EPS >Source model of the 2005 west off Fukuoka prefecture earthquake estimated from the empirical Green's function simulation of broadband strong motions
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Source model of the 2005 west off Fukuoka prefecture earthquake estimated from the empirical Green's function simulation of broadband strong motions

机译：根据宽带强运动的格林函数经验模拟估计的2005年福冈西海岸地震震源模型

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摘要

We estimated strong motion generation area (SMGA) source model which is responsible for broadband (0.2, 0.3-10 Hz) strong motions of the 2005 west off Fukuoka prefecture earthquake and its largest aftershock using the empirical Green's function (EGF) method. The estimated SMGAs are almost corresponding to the large slip area deduced by kinematic waveform inversion. The SMGA rupture for the mainshock propagated mainly upward and toward the northwest with rupture velocity of 3.15 km/s. The size of the SMGA follows the self-similar empirical formula of the asperity size derived by Somerville et al. (1999). The stress drop of the mainshock SMGA is calculated to be 10.7 MPa, which is larger than those of the largest aftershock SMGA and the aftershocks used as EGF.
机译：我们使用格林格林函数（EGF）方法估算了强运动产生区（SMGA）源模型，该模型负责2005年福冈县以西地震及其最大余震造成的宽带（0.2，0.3-10 Hz）强运动。估计的SMGA几乎对应于通过运动学波形反演推导出的大滑动区域。主震的SMGA破裂主要向上和向西北传播，破裂速度为3.15 km / s。 SMGA的大小遵循Somerville等人得出的粗糙度大小的自相似经验公式。 （1999）。计算出的主震SMGA的应力降为10.7 MPa，大于最大余震SMGA和用作EGF的余震的应力降。

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