4.1 Earthquake Christchurch NZ

[AerocatS2A]

Originally Posted by _Phoenix

Funny that a little tremor knocks down an ILS in NZ
4.1 is small, larger earthquakes are active all times, as example currently in Indonesia, Afghanistan, Gibraltar
RSOE - Emergency and Disaster Information Service

The number is not the deciding factor, the depth and location of an earthquake can make a big difference to how destructive it is regardless of what the number says. Pretty sure New Zealand is quite familiar with earthquakes.