Looks like both my sensors picked up a 4.5 magnitude earthquake at Ravenna this morning at 4:08 UTC. According to QCN my sensors are at Brindisi which is the gateway through which they access internet. Actually the two sensors are at Ravenna (Lat: 44.42335, Long: 12.18218). I have just corrected this on QCN but the triggers do have the wrong latitude and longitude in their records.

Here are the PC and Trigger IDs:
PC: 7824 - Trigger ID: 68748984
PC: 19443 - Trigger ID: 68748985

Both sensors are aligned with magnetic north (approximately).