Three codes were hidden in the HANK JOHNSON IN CHRISTCHURCH, NZ post on the Investigate Ingress blog.

[1] pe92n9we3oa5vk

[2] hw133aetlokm56rsm

[3] 7n5cwha4vhac5n6c

Code #1

Observations

14 characters with enough numbers for a valid passcode

Code #2

Observations

Passcode format is there but reversed. A simple manipulation will give you the passcode

Code #3

Observations

16 characters with the right amount of numbers for a valid passcode