Antelope Valley Earthquake Sequence Relocated Catalog

Relocated earthquake catalog for the Antelope Valley Earthquake sequence in GrowClust output format. This is a space-delimited file with the following columns: yr mon day hr min sec: relocated origin time (columns 1-6) evid: event ID (column 7) latR lonR depR: relocated latitude, longitude and depth (decimal degrees and km; columns 8-10) mag: event magnitude (column 11) qID cID nbranch: event serial ID number, cluster serial ID number, total number of events in this cluster (columns 12-14) qnpair qndiffP qndiffS: number of event pairs, P-phase differential times, and S-phase differential times used to relocate this event (columns 15--17) rmsP rmsS: RMS residual differential times for this event for P-phases and S-phases (s; columns 18-19) eh ez et: estimated location errors in horizontal (km), vertical (km), and origin time (s; columns 20-22) latC lonC depC: initial (catalog) latitude, longitude and depth (decimal degrees and km; columns 23-25) Note that events that are not waveform relocated with have nbranch = 1. This includes the mainshock and several other large events, which typically have waveforms that are too complex to be confidently relocated with waveform cross-correlation.本数据集为采用GrowClust软件输出格式的羚羊谷（Antelope Valley）地震序列重定位地震目录。该文件为空格分隔格式，各列信息如下： 第1至6列：yr、mon、day、hr、min、sec，对应重定位发震时刻； 第7列：evid，对应事件编号； 第8至10列：latR、lonR、depR，对应重定位纬度、经度与震源深度（单位为十进制度与千米）； 第11列：mag，对应地震震级； 第12至14列：qID、cID、nbranch，对应事件序列编号、地震簇编号与当前簇内总事件数； 第15至17列：qnpair、qndiffP、qndiffS，对应用于该事件重定位的事件对数量、P波震相走时差数量与S波震相走时差数量； 第18至19列：rmsP、rmsS，对应该事件P波、S波震相走时差的均方根残差（单位：秒）； 第20至22列：eh、ez、et，对应水平方向、垂直方向定位误差估计值与发震时刻误差（单位：千米与秒）； 第23至25列：latC、lonC、depC，对应初始（目录）纬度、经度与震源深度（单位为十进制度与千米）。 需注意，未通过波形完成重定位的事件其nbranch值为1，其中包含主震与其余若干大型事件——这类事件的波形通常过于复杂，无法通过波形互相关实现可靠重定位。