Or as Population Australia put it:

> The state’s capital city is Perth. Perth has an estimated population of over 2.7 million people.

> Western Australia is Australia’s largest state. Its total area is 2,529,875 km² which accounts for 33 percent of Australia’s total land mass.

> Based on our research Western Australia population will reach 2.879 million by the end of June of 2023.

Most of Western Australia, of course, is not Perth. The density outside of Perth is... 0.2 people per square kilometer, using poorly-defined and chronologically mismatched statistics from the wikipedia sidebars. Perth has 80%+ of the people of Western Australia in 0.24% of the space. If we believe Population Australia about the size of Perth, it has more than 97% of the population of Western Australia in 0.3% of the space.

I feel strangely comfortable characterizing temperatures that prevent humans from living in a region as "emergency" temperatures.