Which action should not be taken when hearing a standard warning signal of a nuclear attack?

In the event of a nuclear attack, actions taken must prioritize immediate safety and effective response to the threat. When hearing a standard warning signal, the focus should be on seeking shelter and obtaining reliable information without unnecessary delay.

Reaching out to a civil defense office for more information can lead to delays in taking critical protective measures. During a nuclear threat, the priority is to find immediate shelter, whether in a public or home fallout shelter, to minimize exposure to radiation. Additionally, tuning into a radio is essential as it serves as a reliable means of receiving timely updates and instructions from authorities regarding the situation.

Acting quickly to secure shelter and obtaining vital information through available media are critical responses in a nuclear emergency; hence, contacting a civil defense office at that moment is not a suitable action and could compromise personal safety.