Ku dhammee weedha soo socota: James E. Roberts (November 30, 1930 - July 6, 2006) wuxuu ahaa injineer caan ah oo reer Maraykan ah. Waxaa lagu aqoonsaday warshadaha iyo abaalmarinta dowladda ee hoggaankiisa injineernimada buundada, gaar ahaan aagga dib u habeynta seismic. wuxuu ahaa injineerka buundada ee Caltrans waqtigii Loma Prieta dhulgariirka iyo
Dhulgariirkii ka dhacay Northridge. Xirfadiisa adeegga dadweynaha waxay socotay in ka badan 50 sano ciidanka Mareykanka, ciidanka Mareykanka ee kaydka ah iyo Caltrans. Xirfadda Roberts waxay qaadatay in ka badan 50 sano waxayna dabooshay qaar ka mid ah sanadihii ugu firfircoon ee injineernimada ee lagu soo maray California laga soo bilaabo naqshadeynta iyo dhismaha 1950s iyo 1960s ilaa hoggaankiisa intii lagu jiray dadaallada dib-u-dhiska iyo barnaamijyada dib-u-habeynta seismic ee la abuuray kadib laba dhulgariir oo muhiim ah oo ka dhacay California dhulgariirkii 1989 Loma Prieta iyo dhulgariirkii 1994 Northridge.