Using geodetic methods, significant static ground deformation has been observed for many large natural earthquakes. Some of the largest earthquakes induced by hydraulic‐fracturing operations have been observed in the Western Canada Sedimentary Basin; however, because of the size and depths of these events, the associated static ground deformations have not yet been observed using traditional geodetic techniques. A seismic processing technique, developed for small volcano‐seismic events, has the potential to resolve micrometer‐scale static displacements using broadband seismic data. In this study, we test this processing method using vertical component broadband recordings of an Mw 4.1 event acquired at four nearby broadband seismometers. Estimated static displacements at the four stations are compared with the theoretical surface displacement field for a dislocation on a finite rectangular source within a homogeneous, elastic half‐space. The theoretical displacements have the same polarities as the measured displacements across the seismic network and have similar amplitudes for three of the four stations. However, one station yielded unstable results, which shows that care must be taken when using this method. These results suggest that this processing method has potential for obtaining surface deformation for small to moderate‐sized earthquakes using broadband data.

中文翻译：

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宽带地震仪记录的诱发地震的静态地面位移

使用大地测量方法，已观察到许多大型自然地震的明显静态地面变形。在加拿大西部沉积盆地中观察到了一些由水力压裂操作引起的最大地震。但是，由于这些事件的规模和深度，尚未使用传统的大地测量技术观察到相关的静态地面变形。针对小型火山地震事件开发的地震处理技术具有利用宽带地震数据解决微米级静态位移的潜力。在这项研究中，我们使用在四个附近的宽带地震仪上获得的Mw 4.1事件的垂直分量宽带记录来测试这种处理方法。将四个站点的估计静态位移与理论上的表面位移场进行比较，以求出均匀矩形弹性半空间内有限矩形源上的位错。理论位移与在整个地震网络中测得的位移具有相同的极性，并且对于四个测站中的三个具有相似的振幅。但是，一个站产生的结果不稳定，这表明使用此方法时必须小心。这些结果表明，该处理方法具有利用宽带数据获得中小地震表面变形的潜力。理论位移与在整个地震网络中测得的位移具有相同的极性，并且对于四个测站中的三个具有相似的振幅。但是，一个站产生的结果不稳定，这表明使用此方法时必须小心。这些结果表明，该处理方法具有利用宽带数据获得中小地震表面变形的潜力。理论位移与在整个地震网络中测得的位移具有相同的极性，并且对于四个测站中的三个具有相似的振幅。但是，一个站产生的结果不稳定，这表明使用此方法时必须小心。这些结果表明，该处理方法具有利用宽带数据获得中小地震表面变形的潜力。