Nabro volcano event catalogue from Lapins et al., 2021, JGR Solid Earth

Catalogue of seismic events from Nabro volcano (Sep 2011 - Oct 2012). Data format is a csv file. Events were detected by U-GPD phase arrival picking model. See following paper for details on event detection and location procedure: <em>A Little Data Goes A Long Way Way: Automating Seismic Phase Arrival Picking at Nabro Volcano With Transfer Learning</em> by Lapins et al., 2021, https://doi.org/10.1029/2021JB021910). Original seismic waveforms are from the Nabro Urgency Array (Hammond et al., 2011; https://doi.org/10.7914/SN/4H_2011), which is publicly available through IRIS Data Services (http://service.iris.edu/fdsnws/dataselect/1/). See Hammond et al. (2011) for further details on waveform data access and availability. Full code to reproduce our U-GPD transfer learning model, perform model training, run the U-GPD model over continuous sections of data and use model picks to locate events in NonLinLoc (Lomax et al., 2000) are available at https://github.com/sachalapins/U-GPD, with the release (v1.0.0) associated with this study also archived and available through Zenodo (Lapins, 2021; https://doi.org/10.5281/zenodo.4558121). Dataset column key: time = Origin time of seismic event (UTC) lat = Hypocentre latitude in decimal degrees lon = Hypocentre longitude in decimal degrees depth = Hypocentre depth in km rms = RMS error for phase arrival picks and hypocentre (sec) erh = Estimate of horizontal Gaussian error (km) erz = Estimate of vertical Gaussian error (km) azgap = Azimuthal gap (maximum angle separating two adjacent seismic stations, measured from earthquake epicentre) cluster = HDBSCAN cluster number (see Chapter 6 of Lapins, 2021 doctoral thesis: <em>Detecting and characterising seismicity associated with volcanic and magmatic processes through deep learning and the continuous wavelet transform</em>. Persistent URL: https://hdl.handle.net/1983/ea90148c-a1b2-47ae-afad-5dd0a8b5ebbd) nab*_p_time = P-wave arrival time for station NAB* (UTC) nab*_p_prob = Maximum detection 'probability' around P-wave phase arrival from U-GPD model (between 0 and 1) nab*_s_time = S-wave arrival time for station NAB* (UTC) nab*_s_prob = Maximum detection 'probability' around S-wave phase arrival from U-GPD model (between 0 and 1) Station csv column key: Network = Seismic network name Station = Seismic station name Latitude = Latitude in decimal degrees Longitude = Longitude in decimal degrees Elevation_asl_km = Station elevation in km above sea level纳布罗火山2011年9月—2012年10月地震事件目录 数据格式为逗号分隔值（CSV）文件。地震事件由U-GPD震相到时拾取模型检测得到。有关事件检测与定位流程的详细信息，请参阅以下论文：Lapins等（2021）《小数据大作为：利用迁移学习自动化纳布罗火山的地震震相到时拾取》（*A Little Data Goes A Long Way: Automating Seismic Phase Arrival Picking at Nabro Volcano With Transfer Learning*），DOI: 10.1029/2021JB021910。 原始地震波形数据来自纳布罗应急台阵（Nabro Urgency Array，Hammond等，2011；https://doi.org/10.7914/SN/4H_2011），可通过IRIS数据服务（IRIS Data Services，http://service.iris.edu/fdsnws/dataselect/1/）公开获取。有关波形数据获取与可用性的更多细节，请参阅Hammond等（2011）的研究。 用于复现本研究U-GPD迁移学习模型、完成模型训练、对连续时段数据运行U-GPD模型，并利用模型拾取结果通过NonLinLoc（Lomax等，2000）定位地震事件的完整代码，已上传至https://github.com/sachalapins/U-GPD；本研究配套的v1.0.0版本代码已存档于Zenodo（Lapins，2021；https://doi.org/10.5281/zenodo.4558121）并可公开获取。 数据集字段说明： - time：地震事件发震时刻（协调世界时，UTC） - lat：震源纬度（十进制度） - lon：震源经度（十进制度） - depth：震源深度（千米） - rms：震相到时拾取与震源定位的均方根误差（秒） - erh：水平高斯误差估计值（千米） - erz：垂直高斯误差估计值（千米） - azgap：方位角间隙（以地震震中为基准测量的相邻两个台站的最大夹角） - cluster：HDBSCAN聚类编号（详见Lapins 2021年博士论文第6章：《基于深度学习与连续小波变换探测并刻画火山与岩浆活动相关的地震活动性》，永久链接：https://hdl.handle.net/1983/ea90148c-a1b2-47ae-afad-5dd0a8b5ebbd） - nab*_p_time：台站NAB*的P波到时（UTC） - nab*_p_prob：U-GPD模型在P波震相到时附近的最大检测“概率”（取值范围0~1） - nab*_s_time：台站NAB*的S波到时（UTC） - nab*_s_prob：U-GPD模型在S波震相到时附近的最大检测“概率”（取值范围0~1） 台站CSV文件字段说明： - Network：地震台网名称 - Station：地震台站名称 - Latitude：台站纬度（十进制度） - Longitude：台站经度（十进制度） - Elevation_asl_km：台站海拔高程（千米，以平均海平面为基准）