利用震源扫描方法计算2008年大柴旦6．3级地震震源破裂过程

2008年11月10日在青海大柴旦地区发生Ms6．3级地震。运用甘、青区域数字地震台网观测资料，采用震源扫描方法对此次地震进行亮度函数归一化扫描分析研究，得到研究区域内分层归一化亮度函数的空间成像结果，最大亮度空间分布与青海省野外考察结果基本吻合。震源扫描方法不需要计算理论地震图，利用包括相对振幅和到时在内的波形信息，无需事先假定震源的几何参数，最大限度地利用波形数据信息，得到地震的整个空间分布，提高了获取中强地震震源运动空间分布信息的速度为震后快速趋势判定、应急救援提供技术支持。

CALCULATION OF THE SOURCE RUPTURE PROCESS OF DACHAIDAN Ms6. 3 EARTHQUAKE IN 2008 BY USING THE SOURCE SCANNING METHOD

The Ms6. 3 earthquake occurred on November 10 th, 2008 in Dachaidan in Qinghai province. The function normalized scanning of the earthquake is analyzed by the source scanning method according to the da- ta of Gansu and Qinghai regional digital seismic network, and got the space imaging results of the layered brightness normalization function in the area, the maximum brightness distribution agreement with the result of field survey in Qinghai province. The earthquake source scanning method is not need to compute theory dia- gram, using waveform information, including relative amplitude and then to assume that the source of the geo- metric parameters, maximum limit using the waveform data information, the spatial distribution of the earth- quake is got and improved the speed of the spatial distribution of seismic source motion information to provide technical support for the rapid trend judgement after an earthquake emergency rescue.