Confusion — even panic — was widespread after the Hawaii Emergency Management Agency’ false alarm Jan. 13 warning of an incoming ballistic missile.

Some people were skeptical about the warning of a ballistic missile headed toward the islands — and many didn’t know what to do if it actually was real.

Civil Beat compiled some of the best information available on what you should do to prepare for the possibility of a nuclear strike and what you should do afterward. Some of the tips, in particular the one about having enough provisions to survive on your own for up to two weeks, are applicable to other disasters such as hurricanes and tsunamis.

For more information about nuclear disaster preparedness, visit the Hawaii Emergency Management Agency website or Ready.gov.