Relationship between earthquake and volcanic eruption inferred from historical records

史料记载表明，五大连池火山1720～1721年喷发期间有大量地震活动．本文从描述这些地震活动的文字记录人手，并结合国际火山地震研究的新成果，探讨了地震类型及地震与火山喷发关系，指出震群是火山喷发的重要前兆指标，强调火山地震的监测对火山喷发预报的意义．

Historical material records show there were a large number of seismicities in Wudalianchi volcano during 1720～1721,which provides us with abundant volcanic earthquake information. Considering from the written records,integrating the achievements in volcanic research in the world,the relationship between earthquake and volcanic eruption is discussed in the paper. Also it is pointed earthquake swarm is an important indication of volcanic eruption. Therefore,monitoring volcanic earthquakes is of great significance for forecasting volcanic eruption.