A database of instrumentally recorded ground motion intensity measurements from induced earthquakes in Oklahoma and Kansas

The database contains uniformly processed ground motion intensity measurements (peak horizontal ground motions and 5-percent-damped pseudospectral accelerations for oscillator periods 0.1–10 s). The earthquake event set includes more than 3,800 M≥3 earthquakes in Oklahoma and Kansas from January 2009 to December 2016. Ground motion time series were collected out to 500 km. We also relocated the majority of the earthquake hypocenters using a multiple-event relocation algorithm to produce a set of near-uniformly processed hypocentral locations. Details about data processing are reported in the accompanying article. First posted - October 11, 2017 Revised - December 18, 2017, ver. 1.1本数据库包含经统一处理的地震动强度观测值（ground motion intensity measurements），涵盖水平向峰值地震动（peak horizontal ground motions）以及振动周期0.1~10 s条件下的5%阻尼伪谱加速度（5-percent-damped pseudospectral accelerations）。本地震事件集包含2009年1月至2016年12月期间俄克拉荷马州与堪萨斯州内震级M≥3的3800余次地震。地震动时程（ground motion time series）的采集范围最远覆盖至距震中500 km处。研究团队采用多事件震源定位算法（multiple-event relocation algorithm）对绝大多数地震的震源位置进行重新定位，以生成一组近乎统一处理的震源位置数据集。有关数据处理的详细细节已在配套研究论文中刊载。首次发布：2017年10月11日；修订：2017年12月18日，版本1.1