【摘要】 对黑龙江省区域数字地震台网建立以来五大连池火山区域所发生的天然地震,挑选出其中定位精度较高的85个地震,利用观测的地震波走时反演地下介质速度结构,在此基础上建立基于单层平均速度模型的五大连池火山区域走时表。试用结果表明,使用新走时表处理资料精度较J-B走时表有明显提高。更多还原

【Abstract】 85 earthquakes with higher location precision are selected from the catalog given by the Heilongjiang regional digital seismic network were selected.By using the observed travel time data of the selected earthquakes,an underground medium velocity model is derived through inversion technique and a local travel time table for Wudalianchi volcanic area is established based on the obtained single-layer average velocity model.Comparison is made between the new travel time table and the J-B table by practical testing,and the result shows that the precision of data processing is obviously higher when the new travel time table is used.更多还原