Relief that nobody was harmed was followed by anguish that his home town is suffering again, nearly six years after the devastating 2011 Christchurch quake.
"The city's been through a lot," he said. "I just want it to give them a break. Everyone's wondering when it's going to stop. It's not very pleasant seeing things like that happen in your own backyard."
Brown is confident the Kiwis can put events at home to one side and focus on how to avoid a fourth loss this year to the unbeaten Kangaroos.
Saturday's scratchy 18-18 draw with Scotland compared unfavourably with Australia's impressive 36-18 dismantling of the English.
Brown says the Kiwis have struggled for consistency at the tournament and the Scottish performance was a step backwards from the opening 17-16 win over England and 14-8 loss to Australia.
"It's a wake-up call, to be honest. Maybe a blessing in disguise," he said. "We haven't had a full 80 minutes of football. We have a lot of calibre in this side and we haven't put it together yet.
"Luckily enough for us, we get another bite at the cherry. But it hasn't been ideal."