Dear Octavianus,
I am afraid earthquakes of that strength is quite common anywhere in that part of the world. The 62AD quake in Pompeii was unusual as it was the first strong one in a long time in the area, it seems that after that the earth continued to shake a bit (not all pre-eruption earthquake damage in Pompeii is 62AD, the geologists are pretty confident that there must have been a number more which were smaller.
The problem that that particular school should not have collapsed the quake after all wasn't really that strong (compared to 1980s and the quake that damaged the Giotto-frescoes), the good news is: its along the Appenine fault, so with a bit of luck there shouldn't be any transfer of pressure to the bay of Naples.