A fire service spokeswoman said the phone had been ringing off the hook, with power lines down, people trapped in lifts and multiple sprinkler activations in city buildings.
"We've had reports of damage to some buildings down town. We've got power lines that are coming down."
Every fire truck had been sent to jobs, she said: "We've got all of Wellington out now. And we've got jobs waiting to be addressed. We are prioritising jobs."