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A system comprising:
a plurality of participating devices;
a plurality of client devices; and

a coordination data center that comprises a processing system configured to execute instructions, execution of the instructions by the processing system causing the coordination data center to:

send disaster alert messages to applicable participating devices, the applicable participating devices being ones of the participating devices that are in an area affected by a disaster, the client devices being outside the area;

store initial location data for the applicable participating devices, the initial location data indicating locations of the applicable participating devices, the initial location data based on data received from the applicable participating devices after the coordination data center sends the disaster alert messages;

send post-disaster messages to the applicable participating devices after sending the disaster alert messages;

store new location data and status data, the new location data indicating new locations of the applicable participating devices, the status data indicating whether users of the applicable participating devices need emergency assistance, the new location data and the status data based on data received from the applicable participating devices after the coordination data center sends the post-disaster messages; and

provide to the client devices data indicating whether the users of the applicable participating devices need emergency assistance.

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