Imperial Valley Nodal Experiment

This seismic deployment is expected to support and complement the acquisition of distributed acoustic sensing data on a dark fiber cable between Calipatria and Imperial in the Imperial Valley, Southern California by providing 3D seismometer coverage of the region. The seismometers will provide broadband recordings of local earthquakes and ambient noise. The experiment is expect to improve our understanding of numerous earthquake zones in the region including the Salton Sea area, Imperial Valley fault and Brawley seismic zone, improve our knowledge of the subsurface structure in the sedimentary basin and improve methods for subsurface characterization of geothermal fields.

本次地震观测部署旨在通过为南加州因佩里亚尔谷的卡利帕特里亚与因佩里亚尔之间的暗光纤缆线提供该区域的三维地震计覆盖，支撑并补充分布式声学传感（Distributed Acoustic Sensing, DAS）数据的采集工作。该地震计阵列将获取本地地震与环境噪声的宽频带记录。本实验预期将提升我们对该区域诸多地震带的认知，包括索尔顿湖区域、因佩里亚尔谷断裂带与布劳利地震带；同时增进我们对沉积盆地地下结构的了解，并完善地热田地下刻画的相关方法。