“穷举法”地震定位

METHOD OF EXHAUSTION IN EARTHQUAKE LOCATION

介绍了一种全新的地震参数确定方法———“穷举法”。计算每个可能震中位置的目标函数,取目标函数 最小值为震中,并以此可分层计算得到震源深度及发震时刻。该方法不需要解方程,只要有3个以上台站记录就 能找出真实解。该方法既适合于近震定位,也适合于远震定位,定位时可采用一维、二维或三维地壳模型。

A new method of earthquake localization—Method of Exhaustion is introduced in this paper.In this method first the objective function of each possible epicenter is calculated then the exact epicenter can be defined under such a condition that the objective function is minimum. Further more,in this way the focal depth and the time of earthquake occurrence can be determined by calculating layer by layer.This method does not need to solve equation, but three station’s datum is used at least. It is suited to all kinds of earthquake location, and can use different crustal models.