ML-Enhanced catalog of the 5 April 2024 Tewksbury aftershocks

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.