A 2.8 certainly isn’t news. Even A-cup chicks cause bigger EQs than that.
Girth Quake
I’ve lived in San Pedro for 13 years. Any quake I’ve felt here has been much more intense in another part of SoCal. One actually centered in this area is SIGNIFICANT, no matter how small.
I was only 10 miles from the epicenter of the Northridge quake. One of the most destructive earthquakes in the last century was 1933 in Long Beach, just across the harbor.