As we were just going off to sleep last night, we heard what sounded like an explosion in the distance. Several minutes later there was a second explosion. Our thought was that is might be a minor earthquake because the sound was similar to that we had experienced before. There was no movement though.
This morning I have checked on the Ministry website and the last earthquake recorded was both two days ago and was nowhere near. I then checked the local newspapers to see if there was a report of a mishap but there is nothing to report there either. It is early though so there may be a news item later in the day.
Until then it remains a mystery.