Kammala wannan jumla: Rashin ya tabbatar da cewa yana da muhimmiyar gudummawa ga ayyukan girgizar kasa a yankin Oxnard da kuma bayan. Ƙungiyar 6.7
An yi imanin cewa girgizar kasa ta Northridge da ta faru a ranar 17 ga Janairu, 1994 ta faru ne a cikin Santa Clarita na Oak Ridge Fault. An lura da rushewar ƙasa da rushewar dutse sakamakon girgizar ƙasa ta Northridge sama da Moorpark, wani birni da ke gabashin Oxnard.