I recall something similar happening to my Nexus 4. Came into the office after a cold walk to work, placed my phone on my desk. 5 seconds later I hear a *pop*

I recall something similar happening to my Nexus 4. Came into the office after a cold walk to work, placed my phone on my desk. 5 seconds later I hear a *pop* from my phone. I picked it up thinking it was going to explode or something, only to see a nice clean crack through the rear glass.