In the event of an accident, should an entire city be evacuated?

It depends on the accident; it is not a general rule.

Evacuation decisions are based on predicted dose, release direction, distance, weather, and the possibility of indoor shelter. Modern standards aim to prevent large early releases and to limit off-site consequences. Fukushima involved extensive evacuations, but UNSCEAR has not attributed observable health effects to the doses received by the resident population. Not every accident can be turned into a total evacuation scenario.

In the event of an accident, should an entire city be evacuated?

Related questions about the topic Safety

1. Is it true that a nuclear power plant can explode like an atomic bomb?

2. If the power goes out, does a nuclear power plant automatically go out of control?

3. Are modern nuclear power plants really safe?

4. Can a single human error trigger a new Chernobyl?

5. What happens if a plane crashes into a nuclear power plant?

6. Could a terrorist attack cause a nuclear catastrophe?

7. Are nuclear power plants the most dangerous industrial facilities?

9. Are nuclear power plants more dangerous than dams?

10. Does a major earthquake cause a nuclear power plant to explode?