Relocated locations of NMSZ hypocenters using hypoDD-SVD inversion method on broadband data from year 2000~2019

The intraplate New Madrid Seismic Zone (NMSZ) is located in the northern Mississippi Embayment and over 200 earthquakes are recorded every year. We relocated 4131 hypocenters for earthquakes occurring between 2000 and 2019 using the HypoDD double-difference relocation technique. The input catalog data are broadband data obtained from the Center for Earthquake Research and Information (CERI) earthquake catalog. We used earthquakes recorded from Jan 1st, 2000 to Dec 31st, 2019 within an area from 35.5 𝑁 to 36.9 𝑁 and from 90.6 𝑊 to 89.2 𝑊. This dataset includes 4568 earthquakes recorded by 314 stations.板内新马德里地震带（New Madrid Seismic Zone, NMSZ）坐落于密西西比河凹陷北部，年均记录地震超200次。本研究采用HypoDD双差重定位技术，对2000年至2019年间发生的4131次地震的震源完成了重新定位。输入目录数据取自地震研究与信息中心（Center for Earthquake Research and Information, CERI）地震目录中的宽频带观测资料。我们选取了2000年1月1日至2019年12月31日期间，纬度范围35.5°N至36.9°N、经度范围90.6°W至89.2°W内记录的地震事件。本数据集涵盖314个地震台站所记录的4568次地震。