The Mw 6.4 and Mw 7.1 Ridgecrest earthquake sequence occurred on 4 and 5 July 2019 within the eastern California shear zone of southern California. Both events produced extensive surface faulting and ground deformation within Indian Wells Valley and Searles Valley. In the weeks following the earthquakes, more than six dozen scientists from government, academia, and the private sector carefully documented the surface faulting and ground‐deformation features. As of December 2019, we have compiled a total of more than 6000 ground observations; approximately 1500 of these simply note the presence or absence of fault rupture or ground failure, but the remainder include detailed descriptions and other documentation, including tens of thousands of photographs. More than 1100 of these observations also include quantitative field measurements of displacement sense and magnitude. These field observations were supplemented by mapping of fault rupture and ground‐deformation features directly in the field as well as by interpreting the location and extent of surface faulting and ground deformation from optical imagery and geodetic image products. We identified greater than 68 km of fault rupture produced by both earthquakes as well as numerous sites of ground deformation resulting from liquefaction or slope failure. These observations comprise a dataset that is fundamental to understanding the processes that controlled this earthquake sequence and for improving earthquake hazard estimates in the region. This article documents the types of data collected during postearthquake field investigations, the compilation effort, and the digital data products resulting from these efforts.

中文翻译：

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2019年7月4日至5日Mw 6.4和Mw 7.1 Ridgecrest地震序列产生的表面断层破裂和地面变形特征的文档

Mw 6.4和Mw 7.1 Ridgecrest地震序列于2019年7月4日至5日发生在南加州的东加州剪切带内。两次事件都在印第安维尔斯谷和塞尔斯谷产生了广泛的地表断层和地面变形。地震发生后的几周内，来自政府，学术界和私营部门的六十多名科学家仔细记录了地表断层和地面变形特征。截至2019年12月，我们已汇总了6000多个地面观测资料; 其中大约1500个只是简单地指出是否存在断层破裂或接地故障，而其余部分则包括详细说明和其他文档，包括成千上万张照片。这些观测中的1100多个还包括位移感测和幅度的定量现场测量。通过在野外直接绘制断层破裂和地面变形特征以及解释光学图像和大地测量产品中的表面断层和地面变形的位置和范围，对这些野外观测进行补充。我们确定了由地震和液化或斜坡破坏导致的地面变形的多个地点造成的断层破裂超过68 km。这些观测结果包含一个数据集，对于理解控制该地震序列的过程以及改善该地区的地震危险性估计至关重要。本文记录了震后野外调查期间收集的数据类型，