ML-Enhanced catalog of the 5 April 2024 Tewksbury aftershocks
收藏NIAID Data Ecosystem2026-05-02 收录
下载链接:
https://zenodo.org/record/14058324
下载链接
链接失效反馈官方服务:
资源简介:
Machine-learning-enhanced catalog of the aftershocks of the 5 April 2024 M4.8 Tewksbury, New Jersey earthquake. It accompanies the following article submitted to Geophysical Research Letters:
The 5 April 2024 Tewksbury, New Jersey aftershock sequence resolved with machine-learning-enhanced detection methods
This repository contains the pre-relocation catalog (catalog_Tewksbury_aftershocks_before_relocation.csv) and the relocated catalog (catalog_Tewksbury_aftershocks_relocated.csv).
Columns of the pre-relocation catalog:
event_id: Unique string identifying an event.
Mw: Moment magnitude, computed when possible only (so, most of the events have NaNs because they were too small to estimate Mw).
Mw_err: Error on moment magnitude.
Mw*: Approximate moment magnitude.
longitude: Event longitude.
latitude: Event latitude.
depth: Event depth in km.
origin_time: Event UTC origin time.
origin_time_local: Event local origin time.
hmax_unc: Event location maximum horizontal 1-std uncertainty, in km.
hmin_unc: Event location minimum horizontal 1-std uncertainty, in km.
vmax_unc: Event location maximum horizontal 1-std uncertainty, in km.
az_hmax_unc: Azimuth of the event location maximum horizontal uncertainty.
tt_rms: Residual travel-time, in sec.
n_dev: Network-averaged correlation coefficient in units of CC RMS (matched-filtering).
potential_quarry_blast: True or False. Flags potential quarry blast, ie, anthropogenic earthquake.
Columns of the relocated catalog:
event_id: Unique string identifying an event.
origin_time: Event UTC origin time.
longitude: Event longitude.
latitude: Event latitude.
depth: Event depth in km.
Mw*: Approximate moment magnitude.
hmax_unc: Event location maximum horizontal uncertainty, 95% CI, in km. Computed with bootstrapping.
hmin_unc: Event location minimum horizontal uncertainty, 95% CI, in km. Computed with bootstrapping.
vmax_unc: Event location maximum horizontal uncertainty, 95% CI, in km. Computed with bootstrapping.
az_hmax_unc: Azimuth of the event location maximum horizontal uncertainty.
quality: "A" or "B". "A" events were relocated with stronger inter-event linkage in HypoDD.
本数据集为2024年4月5日新泽西州图克斯伯里(Tewksbury)M4.8级地震的余震机器学习增强目录,配套投稿于《Geophysical Research Letters》的论文:《通过机器学习增强检测方法解析的2024年4月5日新泽西州图克斯伯里余震序列》。
本存储库包含重定位前余震目录(catalog_Tewksbury_aftershocks_before_relocation.csv)与重定位后余震目录(catalog_Tewksbury_aftershocks_relocated.csv)。
重定位前余震目录各字段说明如下:
event_id:用于唯一标识单次地震事件的字符串。
Mw:矩震级(Moment Magnitude),仅在可计算时提供,多数事件因震级过小无法估算矩震级,故对应值为NaN。
Mw_err:矩震级的估算误差。
Mw*:近似矩震级。
longitude:事件经度。
latitude:事件纬度。
depth:事件震源深度,单位为千米(km)。
origin_time:事件的协调世界时(UTC)发震时刻。
origin_time_local:事件的当地发震时刻。
hmax_unc:事件定位的最大水平1σ不确定度,单位为千米(km)。
hmin_unc:事件定位的最小水平1σ不确定度,单位为千米(km)。
vmax_unc:事件定位的最大水平1σ不确定度,单位为千米(km)。
az_hmax_unc:事件定位最大水平不确定度的方位角。
tt_rms:走时残差,单位为秒(sec)。
n_dev:以CC RMS(匹配滤波,matched-filtering)为单位的台网平均相关系数。
potential_quarry_blast:布尔值(真/假),用于标记潜在的矿山爆破事件,即人工诱发地震。
重定位后余震目录各字段说明如下:
event_id:用于唯一标识单次地震事件的字符串。
origin_time:事件的协调世界时(UTC)发震时刻。
longitude:事件经度。
latitude:事件纬度。
depth:事件震源深度,单位为千米(km)。
Mw*:近似矩震级。
hmax_unc:事件定位的最大水平不确定度(95%置信区间),单位为千米(km),通过自助法(bootstrapping)计算得到。
hmin_unc:事件定位的最小水平不确定度(95%置信区间),单位为千米(km),通过自助法计算得到。
vmax_unc:事件定位的最大水平不确定度(95%置信区间),单位为千米(km),通过自助法计算得到。
az_hmax_unc:事件定位最大水平不确定度的方位角。
quality:分类标记为"A"或"B"。其中"A"类事件在HypoDD软件中通过更强的事件间关联完成重定位。
创建时间:
2024-11-08



