The velocity models obtained by using different data selection criteria and parametrization display similar basic features,showing a high P wave velocity at shallow depth in the SE quadrant, in close connection with a high gravimetric Bouguer anomaly.

• 选择了几种判别标志与参数化办法以显示其类似的基本特征。 表明在火山的东南象限在浅层，有P波的高速分怖，它同布格重力高异常有密切关系。