Supplementary data to “<b>Complex rupture dynamics of the extremely shallow August 2020 M5.1 Sparta, North Carolina earthquake</b>”
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This repository contains supplementary data used in the paper titled “Complex rupture dynamics of the extremely shallow August 2020 M5.1 Sparta, North Carolina earthquake”.Files include:<b>supplementary_figure10_3d_earthquakes_plot.html: </b>Interactive 3D plot of earthquakes in our catalog and the best fitting planes to the identified seismicity clusters.<b>supplementary_figure11_3d_faultplanes_plot.html:</b> Interactive 3D plot of best fitting planes to the three identified seismicity cluster and mainshock hypocenter.<b>supplementary_data1_relocated_catalog_sparta.txt: </b>Earthquake relocated catalog for the 2020 Sparta earthquake sequence.<b>supplementary_data2_polarity_focal_mechanism_catalog.txt: </b>First motion polarity derived focal mechanism catalog.<b>readme.txt:</b> file describing contents.<br><b>Format of</b> <b>supplementary_data1_relocated_catalog_sparta.txt: </b>ID YYYY MM dd hh mm ss.sss lat lon depth mag ex ey ez et rmsID: event identifierYYYY: year of earthquake origin timeMM: monthdd: dayhh: hourmm: minutess.sss: secondslat: latitude(degrees)lon: longitude(degrees)depth: depth in kmmag: earthquake magnitudeex: North-South uncertainty estimated from bootstrapping (m)ey: East-West uncertainty estimated from bootstrapping (m)ez: depth uncertainty estimated from bootstrapping (m)et: origin time uncertainty estimated from bootstrapping (ms)rms: root mean square of the differential times<br><b>Format of supplementary_data2_polarity_focal_mechanism_catalog.txt</b>: ID YYYY MM dd hh mm ss.sss mag lat lon depth st dip rk ep eap np misfit qual prob stratio nsp sp_misfID: event identifierYYYY: year of earthquake origin timeMM: monthdd: dayhh: hourmm: minutess.sss: secondsmag: earthquake magnitudelat: latitude(degrees)lon: longitude(degrees)depth: depth in kmst: focal mechanism strikedip: focal mechanism diprk: focal mechanism rakeep: fault plane uncertaintyeap: auxiliary fault plane uncertaintynp: number of P first motion polaritiesmisfit: weighted percent misfit of first motionsqual: focal mechanism quality: A-Fprob: probability mechanism close to solutionstratio: 100*(station distribution ratio)nsp: number of S/P ratiossp_misf: 100*(average log10(S/P) misfit<br><b>Format of</b><b> </b><b>supplementary_data3_detection_catalog_sparta.txt</b>: ID YYYY MM dd hh mm ss.sss lat lon depthID: event identifierYYYY: year of earthquake origin timeMM: monthdd: dayhh: hourmm: minutess.sss: secondslat: latitude(degrees)lon: longitude(degrees)depth: depth in km
本仓库包含发表于题为《2020年8月北卡罗来纳州斯巴达M5.1极浅源地震复杂破裂动力学》论文的补充数据。所包含文件如下: <b>supplementary_figure10_3d_earthquakes_plot.html:</b>本地震目录内地震事件与识别出的地震活动簇最优拟合平面的交互式三维绘图。 <b>supplementary_figure11_3d_faultplanes_plot.html:</b>三个识别出的地震活动簇及主震震源的最优拟合平面的交互式三维绘图。 <b>supplementary_data1_relocated_catalog_sparta.txt:</b>2020年斯巴达地震序列的重定位地震目录。 <b>supplementary_data2_polarity_focal_mechanism_catalog.txt:</b>基于初动极性(first motion polarity)推导的震源机制(focal mechanism)目录。 <b>readme.txt:</b>用于说明本仓库文件内容的说明文档。 <b>supplementary_data1_relocated_catalog_sparta.txt 格式说明:</b>字段依次为:ID YYYY MM dd hh mm ss.sss lat lon depth mag ex ey ez et rms 各字段含义如下: ID:事件标识符; YYYY:地震发震时刻的年份; MM:月份; dd:日期; hh:小时; mm:分钟; ss.sss:秒; lat:纬度(单位:度); lon:经度(单位:度); depth:震源深度(单位:千米); mag:地震震级; ex:通过自助法(bootstrapping)估算的南北向位置不确定性(单位:米); ey:通过自助法(bootstrapping)估算的东西向位置不确定性(单位:米); ez:通过自助法(bootstrapping)估算的震源深度不确定性(单位:米); et:通过自助法(bootstrapping)估算的发震时刻不确定性(单位:毫秒); rms:走时残差的均方根(root mean square)值。 <b>supplementary_data2_polarity_focal_mechanism_catalog.txt 格式说明:</b>字段依次为:ID YYYY MM dd hh mm ss.sss mag lat lon depth st dip rk ep eap np misfit qual prob stratio nsp sp_misf 各字段含义如下: ID:事件标识符; YYYY:地震发震时刻的年份; MM:月份; dd:日期; hh:小时; mm:分钟; ss.sss:秒; mag:地震震级; lat:纬度(单位:度); lon:经度(单位:度); depth:震源深度(单位:千米); st:震源机制(focal mechanism)走向角; dip:震源机制(focal mechanism)倾角; rk:震源机制(focal mechanism)倾滑角; ep:主断裂面不确定性; eap:辅助断裂面不确定性; np:P波初动极性(first motion polarity)的有效观测数; misfit:初动极性的加权百分比残差; qual:震源机制质量等级,分为A-F级; prob:当前解与最优震源机制的吻合概率; stratio:台站分布占比的100倍缩放值; nsp:S/P振幅比的有效观测数; sp_misf:S/P振幅比平均对数残差的100倍缩放值。 <b>supplementary_data3_detection_catalog_sparta.txt 格式说明:</b>字段依次为:ID YYYY MM dd hh mm ss.sss lat lon depth 各字段含义如下: ID:事件标识符; YYYY:地震发震时刻的年份; MM:月份; dd:日期; hh:小时; mm:分钟; ss.sss:秒; lat:纬度(单位:度); lon:经度(单位:度); depth:震源深度(单位:千米)。



