Given its versatility and portability, your phone is the best place to store disaster planning information. Your phone’s emergency functions can include:
Storing emergency contacts
Planning and sharing evacuation routes
Wildfire and storm tracking Earthquake early warning
Storing critical medical information
Housing a home inventory for insurance purposes
Accessing critical documents you may need in an emergency
Illumination and emergency sirens
Mass notification of your status to friends and loved ones
Probably much more.