Such is life. I've only been back from the San Andreas Fault ridden California a couple of days and we go and have our own earthquake in the UK. 5.3 on the Richter Scale too, whatever that means (in our house this equates to "Rattling of windows, scary whooshing sound and ponderings as to the brick resistant properties of an 11 tog duvet.").
Actually it was rather frightening but there doesn't seem to have been any damage done. For me the worst part was the silence afterwards. It really was eerie.