SEM standing for Salinas East Market street is the first Norteno gang in Salinas, CA and the most common and dominant gang in Salinas, let alone Monterey County known as the 831 area.
SEM Street is most times represented by members with an "M" and referred to as "500 block" with many fractions or subsets throughout East Salinas.
by Evilsidesalinas November 12, 2022