A project called the San Andreas Fault Observatory at Depth (SAFOD) near Parkfield, Monterey County, was drilled through the fault during 2004 – 2007 to collect material and make physical and chemical observations to better understand fault behavior.
Un proxecto chamado San Andreas Fault Observatory at Depth (SAFOD, Observatorio da Falla de San Andreas a Profundidade) preto de Parkfield, fixo unha perforación na falla entre 2004 e 2007 para recoller material e facer observacións físicas e químicas para comprender mellor o comportamento da falla.