ML-Enhanced catalog of the 5 April 2024 Tewksbury aftershocks

<p>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:</p> <p>The 5 April 2024 Tewksbury, New Jersey aftershock sequence resolved with machine-learning-enhanced detection methods</p> <p>This repository contains the pre-relocation catalog (<span><a href="https://zenodo.org/api/records/14058325/draft/files/catalog_Tewksbury_aftershocks_before_relocation.csv/content" target="_blank" rel="noopener noreferrer">catalog_Tewksbury_aftershocks_before_relocation.csv</a></span>) and the relocated catalog (<a href="https://zenodo.org/api/records/14058325/draft/files/catalog_Tewksbury_aftershocks_relocated.csv/content" target="_blank" rel="noopener noreferrer">catalog_Tewksbury_aftershocks_relocated.csv</a>).</p> <p>&nbsp;</p> <p>Columns of the pre-relocation catalog:</p> <ul> <li>event_id: Unique string identifying an event.</li> <li>Mw: Moment magnitude, computed when possible only (so, most of the events have NaNs because they were too small to estimate Mw).</li> <li>Mw_err: Error on moment magnitude.</li> <li>Mw*: Approximate moment magnitude.</li> <li>longitude: Event longitude.</li> <li>latitude: Event latitude.</li> <li>depth: Event depth in km.</li> <li>origin_time: Event UTC origin time.</li> <li>origin_time_local: Event local origin time.</li> <li>hmax_unc: Event location maximum horizontal 1-std uncertainty, in km.</li> <li>hmin_unc: Event location minimum horizontal 1-std uncertainty, in km.</li> <li>vmax_unc: Event location maximum horizontal 1-std uncertainty, in km.</li> <li>az_hmax_unc: Azimuth of the event location maximum horizontal uncertainty.</li> <li>tt_rms: Residual travel-time, in sec.</li> <li>n_dev: Network-averaged correlation coefficient in units of CC RMS (matched-filtering).</li> <li>potential_quarry_blast: True or False. Flags potential quarry blast, ie, anthropogenic earthquake.</li> </ul> <p>Columns of the relocated catalog:</p> <ul> <li>event_id: Unique string identifying an event.</li> <li>origin_time: Event UTC origin time.</li> <li>longitude: Event longitude.</li> <li>latitude: Event latitude.</li> <li>depth: Event depth in km.</li> <li>Mw*: Approximate moment magnitude.</li> <li>hmax_unc: Event location maximum horizontal uncertainty, 95% CI, in km. Computed with bootstrapping.</li> <li>hmin_unc: Event location minimum horizontal uncertainty, 95% CI, in km. Computed with bootstrapping.</li> <li>vmax_unc: Event location maximum horizontal uncertainty, 95% CI, in km. Computed with bootstrapping.</li> <li>az_hmax_unc: Azimuth of the event location maximum horizontal uncertainty.</li> <li>quality: "A" or "B". "A" events were relocated with stronger inter-event linkage in HypoDD.</li> </ul>