The 2019 Ridgecrest, California, sequence includes an 6.4 earthquake on 4 July and an 7.1 mainshock 34 hr later. We perform absolute location of Ridgecrest events using multiple velocity models, station corrections, and a location algorithm robust to velocity model and arrival‐time error. The obtained seismicity is mainly deep, with few shallower events. The 6.4 hypocenter is deep, compatible with hypocentral depths of most earthquakes in southern California. The 7.1 hypocenter, however, is unusually shallow at . The immediate post‐ 6.4 seismicity defines a deep, long, southeast–northwest structure containing the 6.4 hypocenter and a shallower, orthogonal, northeast–southwest structure. These structures have little or no intersection, making the 6.4 event a double earthquake, rupturing first the deeper and then the shallower structure. The ensuing, pre‐ 7.1 seismicity extends the southeast–northwest structure northwestwards to within of the future 7.1 hypocenter and illuminates a new crossing structure, whereas small clusters of events within 2 km of the future 7.1 hypocenter activate 3–4 times in pulses from a few hours after the 6.4 event through 7.1 initiation. This pre‐ 7.1 seismicity suggests 7.1 rupture initiation activated as an event in the pulsing clusters, and early 7.1 rupture growth was primed by stress changes from the 6.4 rupture and its aftershocks. Moreover, shallow 7.1 nucleation, for which spontaneous rupture growth into a large earthquake is not expected, may have required this incitation by the 6.4 events, a significant complication for hazard estimation. Otherwise, 7.1‐like rupture might not have occurred until much later, perhaps with nucleation at greater depth. The Ridgecrest seismicity defines additional structures around and crossing the main 6.4 and 7.1 rupture zones, but some of this seismicity likely shows delayed activity on pre‐existing faults due to stress changes from the main events and not rupture complexity during the larger events.