Communication service providers play a critical role, but too often
view public alerting as "someone else's job."
https://www.dhs.gov/sites/default/files/publications/1051_IAS_Report-on-Alerting-Tactics_180807-508.pdf
Report on Alerting Tactics
August 7, 2018
However, there was not consensus on which combination of tools is
generally most effective. The alerting ecosystem consists of multiple
systems alert originators can use to reach the public with alert and
warning information, “as well as diverse channels of message delivery,
distributed sensing devices, and feedback mechanisms.” Alerting ecosystem
components include:
• Alerts and warnings from Federal, state, and local alerting authorities
to the public;
• Coordination between alerting authorities and other governmental
entities (e.g., 911);
• Public information sharing to alerting authorities (e.g., social media
requests); and
• Public information exchange between community members