I would assume that which wasnt destroyed from WWII was built in the 1800s or earlier, so no building codes or standards.
Must not be very densly populated, for such building standards to go unforced for so long. Italy already has enough problems with unwanted immigrants being dumped onto their streets. The EU does not seem to know how to win friends and influence people, unless by imposed order and decree.
Yep, sounds like old construction. But I must add at or near epicenter during a shallow 6.2 event, it can make one think the worlds coming to an end. But with the right construction it holds up. It’s pretty amazing. Anything much above that like approaching the mid 6s and up, is when most damage starts. I’ve seen it rock so hard hanging chandeliers were striking ceilings.