Users are posting them to raise awareness of the devastating fires, but some of the viral maps are misleading, spreading disinformation about the crisis.
The months-long fires have killed at least 25 people and millions of animals, and destroyed more than 2,000 houses.
After milder weather brought brief respite last weekend, fire crews are preparing again for worsening conditions as temperatures are predicted to soar on Friday.
Artist's visualisation misinterpreted