It's strange that a power outage would catch a house on fire. The main transformer is super isolated from everything & the pole mount transformers (which will each cut power to about half the houses) only have a 0.5 explosion size, which is typically just big enough to break the transformer & catch the pole on fire. The houses do have gas cans in them. They are slightly explosive, but only really big enough to start a fire, not to do a lot of damage.
