五大连池火山区历史监测数据分析

An Analysis of Historical Monitoring Data of Wudalianchi Volcanic Area

为充分发挥五大连池火山区历史数据在火山与地震活动监测中的作用,采用五大连池火山区历史地震数据、地下流体数据、电磁数据进行分析、整理,详细统计出五大连池火山区有监测数据以来历年地震发震频次和最大震级,流体数据和电磁数据年变规律。结果表明,五大连池火山区历史地震频次较低,流体和电磁数据变化形态符合正常数据年变规律,说明五大连池火山区火山与地震活动相对平静,近期内无活动迹象。

In order to give full play to the role of historical data in the monitoring of volcanic and seismic activities in Wudalianchi Volcanic Area,historical seismic data,underground fluid data and electromagnetic data in Wudalianchi Volcanic Area are used for analysis and sorting,and the frequency and maximum magnitude of earthquakes over the years since the monitoring data are available in Wudalianchi Volcanic Area,as well as the annual variation law of fluid data and electromagnetic data are calculated in detail.The results show that the historical earthquake frequency in Wudalianchi Volcanic Area is low,and the fluid and electromagnetic data change patterns conform to the annual variation law of normal data,indicating that the volcanic and seismic activities in Wudalianchi Volcanic Area are relatively quiet,and there is no sign of activity in the near future.