High-resolution reflection and refraction seismic characterization of the projected PIER-ICDP fluid monitoring sites in the Novy Kostel swarm earthquake region

在Novy Kostel （CR）附近的群震区，将进行反射和折射地震调查，以确定两个ICDP流体监测点附近的地下特征。两个3D反射地震勘测深度约为1公里，将提供高分辨率图像，以优化Cheb盆地Hartousov和西部krusn<s:1> hory山脚结晶基岩的Dolni Castkov附近的准确钻探位置。它们将辅以远偏移拍摄，以改善目标深度约500米的陡峭断层的三维成像。另外三个固定扩展反射和折射剖面将连接这些测量，并将两个钻井点的高分辨率3D图像嵌入到该地区的更大模型中。2D折射数据还将提供目标深度地震速度的详细信息，这些信息是3D数据叠前偏移所必需的。现代地震成像和反演工具（菲涅耳体积偏移、全波形反演）将被应用于数据分析。不同的调查和方法将提供预测钻探点和NW波西米亚群震区上地壳的多尺度/多参数图像。

Reflection and refraction seismic surveys will be performed to characterize the subsurface in the vicinity of two projected ICDP fluid monitoring sites in the swarmquake area near Novy Kostel (CR). Two 3D reflection seismic surveys with ~1 km penetration depth will provide high-resolution images to optimize the exact drill locations at Hartousov in the Cheb Basin, and near Dolni Castkov in the crystalline bedrock of the Western Krusné hory foothills. They will be complemented by far-offset shots to improve the 3D imaging of steep faults at the target depth of ~500 m. Three additional fixed-spread reflection-and-refraction profiles will connect those surveys and embed the high-resolution 3D images of the two drill sites in a larger model of the area. The 2D refraction data will also provide detailed information on the seismic velocities at the target depth that is required for pre-stack migration of the 3D data. Modern seismic imaging and inversion tools (Fresnel-Volume Migration, Full Waveform Inversion) will be applied to analyze the data. The different surveys and methods will provide multi-scale/multi-parameter images of the projected drill sites and the uppermost crust in the NW Bohemia swarmquake area.