使用高频GPS数据快速估计地震震级

Quick Earthquake Magnitude Estimation Using High-rate GPS Data

采用模拟退火算法,拟合震级估计回归方程的参数,并模拟新西兰凯库拉M_W7.8地震发生后的快速震级估计,结果显示震源距小于100km的测站估计震级为M_W7.66,所有GPS站估计震级平均值为M_W7.88。

The simulated annealing algorithm is used to fit the parameters of the regression equation for magnitude estimation and to simulate the rapid magnitude estimation after the M_W7.8 earthquake in Kaikoura,New Zealand.The results show that while hypocentral distance is less than 100 km,the mean estimated magnitude is M_W7.66,and the mean estimated magnitude of all GPS stations is M_W7.88.