Mezue nkebi ahịrịokwu a: James E. Roberts (November 30, 1930 - July 6, 2006) bụ onye America a ma ama na-arụ ụlọ. E jirila ụlọ ọrụ na gọọmentị kwanyere ya ugwu maka idu ndú ya na injinia àkwà mmiri, ọkachasị n'ihe gbasara imeziwanye ala ọma jijiji. Ọ bụ onye injinia akwa steeti na Caltrans n'oge ala ọma jijiji Loma Prieta na
Ala ọma jijiji mere na Northridge. Ọ rụrụ ọrụ ọha na eze ihe karịrị afọ iri ise na US Army, US Army Reserves na Caltrans. Ọrụ Roberts mere ihe karịrị afọ 50 ma kpuchie ụfọdụ n'ime afọ ndị kachasị arụ ọrụ maka injinịa ahụmịhe na California site na imewe na owuwu nke afọ 1950 na 1960 ruo na nduzi ya n'oge mgbalị mgbake na mmemme mmezi seismic mepụtara mgbe ala ọma jijiji abụọ dị na California bụ 1989 Loma Prieta ala ọma jijiji na 1994 Northridge ala ọma jijiji.